Side by side

M12 A-coded versus B-coded versus L-coded

Which M12 coding and intended domain does the equipment documentation specify?

Computer-generated illustration, not a photograph. — P251 · ConnectorM12 A-coded 5-position connector

How they differ

M12 A-coded 5-position connector Confirm A-coding and the five-position insert from product documentation, then separately verify the system signal assignment.
M12 B-coded 5-position connector Confirm the B-coded five-position insert and the equipment’s bus documentation instead of relying on shell appearance.
M12 L-coded 5-position power connector Confirm L-coding and the five-position form, then use the exact component and equipment documentation for every electrical decision.

Then askWhich M12 coding and intended domain does the equipment documentation specify?

At a glance

Source-scoped form facts; counts, variants and unknowns are distinct
Field	M12 A-coded 5-position connector	M12 B-coded 5-position connector	M12 L-coded 5-position power connector
Type	Connector	Connector	Connector
Family	Network	Network	Power
Shape	round	round	round
Nominal contacts	5S271Source-backed nominal position/contact count: 5.	5S272Source-backed nominal position/contact count: 5.	5S273Source-backed nominal position/contact count: 5.
Positions / cavity span	5 (Claim C251A); 5 (Claim C251B); 5 (Claim C251C); 5 (Claim C251D); 5 (Phoenix Contact 1836717 / connection 1); 5 (Phoenix Contact 1836717 / connection 2)S271 · S289 · S503 · S647 · S503Source-scoped examples are separate; select the exact variant and measured axis. V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. V44 contact-designation/orientation reference only; no universal signal assignment, wire color, voltage/current rating or device compatibility is inferred. V121 named-product or explicitly scoped manufacturer distinction only; no wiring instruction, independent engineering approval or end-to-end compatibility guarantee. V178 Coding-class and application distinction only; electrical and mechanical mating of actual parts unverified. Original bounded manufacturer paraphrase; publication and technical review pending. Phoenix Contact 1836717 / connection 1. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use. Phoenix Contact 1836717 / connection 2. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.	5 (Claim C252A); 5 (Claim C252B); 5 (Claim C252C); 5 (Phoenix Contact 1543553)S272 · S289 · S272 · S272Source-scoped examples are separate; select the exact variant and measured axis. V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. V44 contact-designation/orientation reference only; the B-coded form is not assigned a universal protocol or wire map by this claim. Exact assembled T-distributor and end roles, not a universal M12 form, Ethernet branch adapter or authorized wiring topology. Phoenix Contact 1543553. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.	5 (Claim C253A); 5 (Claim C253B); 4 (Claim C253E); 5 (Phoenix Contact 1276587 / connection 1)S273 · S290 · S569 · S564Source-scoped examples are separate; select the exact variant and measured axis. V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. V44 product-specific electrical boundary only. Values are not generalized to every M12 L-coded connector, cable, installation or load. V138 source-qualified recognition of the named configurable assembly only; no universal rating, unknown-equipment compatibility, wiring, dimensions, energized work or independent approval. Phoenix Contact 1276587 / connection 1. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.
Contact rows	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Connector role	Straight M12 cable plug (Phoenix Contact 1836717 / connection 1); Straight M12 cable socket (Phoenix Contact 1836717 / connection 2)S503Source-scoped examples are separate; select the exact variant and measured axis. Phoenix Contact 1836717 / connection 1. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use. Phoenix Contact 1836717 / connection 2. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.	T-distributor: straight M12 plugs at connections 1/2; straight M12 socket at connection 3 (Phoenix Contact 1543553)S272Source-scoped examples are separate; select the exact variant and measured axis. Phoenix Contact 1543553. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.	plug; Angled M12 power cable plug; other end free cable (Phoenix Contact 1276587 / connection 1)S273 · S290 · S564Source-scoped examples are separate; select the exact variant and measured axis. M12 L-coded power-cable plug Phoenix Contact 1276587 / connection 1. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.
Key distinction	An M12 threaded shell is only the outer family; coding and position pattern must be verified before any signal or power assumption.	M12 coding is part of the mechanical identity; a matching shell diameter does not imply mating or protocol equivalence.	Power connector identity is not authorization to mate two devices. Voltage, current, conductor size, protection and equipment requirements must all be checked independently.

Full evidence ledger and sources ↓

Illustrations are computer-generated with prior AI visual review; independent technical and rights review pending. A comparison is not a compatibility verdict.

This comparison stays within one evidence layer.

All selected records are Connector records. Similar layer does not mean compatible, interchangeable or safe to mate.

Families represented: Network · Power

The reference ledger

Read the same question across.

3 selected records · 14 fields
No score. No compatibility verdict.

On a narrow screen, scroll the table sideways or open the field-by-field reading view below. Illustrations are not a size comparison.

Comparison of selected field notes; source links accompany each documented specification
What you are comparing	P251 / ConnectorM12 A-coded 5-position connector Identification schematic · not to scale · drawing review pending	P252 / ConnectorM12 B-coded 5-position connector Identification schematic · not to scale · drawing review pending	P253 / ConnectorM12 L-coded 5-position power connector Identification schematic · not to scale · drawing review pending
Layer	Connector	Connector	Connector
Key distinction	An M12 threaded shell is only the outer family; coding and position pattern must be verified before any signal or power assumption.	M12 coding is part of the mechanical identity; a matching shell diameter does not imply mating or protocol equivalence.	Power connector identity is not authorization to mate two devices. Voltage, current, conductor size, protection and equipment requirements must all be checked independently.
Nominal contacts	5S271Source-backed nominal position/contact count: 5.	5S272Source-backed nominal position/contact count: 5.	5S273Source-backed nominal position/contact count: 5.
Positions / cavity span	5 (Claim C251A); 5 (Claim C251B); 5 (Claim C251C); 5 (Claim C251D); 5 (Phoenix Contact 1836717 / connection 1); 5 (Phoenix Contact 1836717 / connection 2)S271 · S289 · S503 · S647 · S503Source-scoped examples are separate; select the exact variant and measured axis. V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. V44 contact-designation/orientation reference only; no universal signal assignment, wire color, voltage/current rating or device compatibility is inferred. V121 named-product or explicitly scoped manufacturer distinction only; no wiring instruction, independent engineering approval or end-to-end compatibility guarantee. V178 Coding-class and application distinction only; electrical and mechanical mating of actual parts unverified. Original bounded manufacturer paraphrase; publication and technical review pending. Phoenix Contact 1836717 / connection 1. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use. Phoenix Contact 1836717 / connection 2. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.	5 (Claim C252A); 5 (Claim C252B); 5 (Claim C252C); 5 (Phoenix Contact 1543553)S272 · S289 · S272 · S272Source-scoped examples are separate; select the exact variant and measured axis. V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. V44 contact-designation/orientation reference only; the B-coded form is not assigned a universal protocol or wire map by this claim. Exact assembled T-distributor and end roles, not a universal M12 form, Ethernet branch adapter or authorized wiring topology. Phoenix Contact 1543553. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.	5 (Claim C253A); 5 (Claim C253B); 4 (Claim C253E); 5 (Phoenix Contact 1276587 / connection 1)S273 · S290 · S569 · S564Source-scoped examples are separate; select the exact variant and measured axis. V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. V44 product-specific electrical boundary only. Values are not generalized to every M12 L-coded connector, cable, installation or load. V138 source-qualified recognition of the named configurable assembly only; no universal rating, unknown-equipment compatibility, wiring, dimensions, energized work or independent approval. Phoenix Contact 1276587 / connection 1. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.
Populated contacts	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Contact rows	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Contact pitch	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Dimensions / axis	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Connector role	Straight M12 cable plug (Phoenix Contact 1836717 / connection 1); Straight M12 cable socket (Phoenix Contact 1836717 / connection 2)S503Source-scoped examples are separate; select the exact variant and measured axis. Phoenix Contact 1836717 / connection 1. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use. Phoenix Contact 1836717 / connection 2. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.	T-distributor: straight M12 plugs at connections 1/2; straight M12 socket at connection 3 (Phoenix Contact 1543553)S272Source-scoped examples are separate; select the exact variant and measured axis. Phoenix Contact 1543553. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.	plug; Angled M12 power cable plug; other end free cable (Phoenix Contact 1276587 / connection 1)S273 · S290 · S564Source-scoped examples are separate; select the exact variant and measured axis. M12 L-coded power-cable plug Phoenix Contact 1276587 / connection 1. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.
Coupling / latch	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.	Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
Keying / polarization	A coding (Phoenix Contact 1836717 / connection 1); A coding (Phoenix Contact 1836717 / connection 2)S503Source-scoped examples are separate; select the exact variant and measured axis. Phoenix Contact 1836717 / connection 1. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use. Phoenix Contact 1836717 / connection 2. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.	B coding (Phoenix Contact 1543553)S272Source-scoped examples are separate; select the exact variant and measured axis. Phoenix Contact 1543553. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.	L coding (Phoenix Contact 1276587 / connection 1)S564Source-scoped examples are separate; select the exact variant and measured axis. Phoenix Contact 1276587 / connection 1. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.
Documented identification	5-position/contact recognition fact in the cited implementation.C251A	5-position/contact recognition fact in the cited implementation.C252A	5-position/contact recognition fact in the cited implementation.C253A
Source-scoped component distinction	Not an equivalent field	Phoenix Contact 1543553 is a five-position B-coded M12 PROFIBUS DP T-distributor with two straight plug connections and one straight socket connection.C252C	Not an equivalent field
Evidence	C251A,C251C,C251D → Independent review pending	C252A,C252B,C252C → Independent review pending	C253A,C253C,C253D,C253E,C253F → Independent review pending

Read field by field — no sideways scrolling

The same selected records, fields, values and source links as the table. Missing fields remain non-equivalent; no values are merged.

Layer

M12 A-coded 5-position connectorP251 / Connector: Connector
M12 B-coded 5-position connectorP252 / Connector: Connector
M12 L-coded 5-position power connectorP253 / Connector: Connector

Key distinction

M12 A-coded 5-position connectorP251 / Connector: An M12 threaded shell is only the outer family; coding and position pattern must be verified before any signal or power assumption.
M12 B-coded 5-position connectorP252 / Connector: M12 coding is part of the mechanical identity; a matching shell diameter does not imply mating or protocol equivalence.
M12 L-coded 5-position power connectorP253 / Connector: Power connector identity is not authorization to mate two devices. Voltage, current, conductor size, protection and equipment requirements must all be checked independently.

Nominal contacts

M12 A-coded 5-position connectorP251 / Connector: 5S271Source-backed nominal position/contact count: 5.
M12 B-coded 5-position connectorP252 / Connector: 5S272Source-backed nominal position/contact count: 5.
M12 L-coded 5-position power connectorP253 / Connector: 5S273Source-backed nominal position/contact count: 5.

Positions / cavity span

M12 A-coded 5-position connectorP251 / Connector: 5 (Claim C251A); 5 (Claim C251B); 5 (Claim C251C); 5 (Claim C251D); 5 (Phoenix Contact 1836717 / connection 1); 5 (Phoenix Contact 1836717 / connection 2)S271 · S289 · S503 · S647 · S503Source-scoped examples are separate; select the exact variant and measured axis. V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. V44 contact-designation/orientation reference only; no universal signal assignment, wire color, voltage/current rating or device compatibility is inferred. V121 named-product or explicitly scoped manufacturer distinction only; no wiring instruction, independent engineering approval or end-to-end compatibility guarantee. V178 Coding-class and application distinction only; electrical and mechanical mating of actual parts unverified. Original bounded manufacturer paraphrase; publication and technical review pending. Phoenix Contact 1836717 / connection 1. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use. Phoenix Contact 1836717 / connection 2. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.
M12 B-coded 5-position connectorP252 / Connector: 5 (Claim C252A); 5 (Claim C252B); 5 (Claim C252C); 5 (Phoenix Contact 1543553)S272 · S289 · S272 · S272Source-scoped examples are separate; select the exact variant and measured axis. V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. V44 contact-designation/orientation reference only; the B-coded form is not assigned a universal protocol or wire map by this claim. Exact assembled T-distributor and end roles, not a universal M12 form, Ethernet branch adapter or authorized wiring topology. Phoenix Contact 1543553. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.
M12 L-coded 5-position power connectorP253 / Connector: 5 (Claim C253A); 5 (Claim C253B); 4 (Claim C253E); 5 (Phoenix Contact 1276587 / connection 1)S273 · S290 · S569 · S564Source-scoped examples are separate; select the exact variant and measured axis. V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. V44 product-specific electrical boundary only. Values are not generalized to every M12 L-coded connector, cable, installation or load. V138 source-qualified recognition of the named configurable assembly only; no universal rating, unknown-equipment compatibility, wiring, dimensions, energized work or independent approval. Phoenix Contact 1276587 / connection 1. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.

Populated contacts

M12 A-coded 5-position connectorP251 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
M12 B-coded 5-position connectorP252 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
M12 L-coded 5-position power connectorP253 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Contact rows

M12 A-coded 5-position connectorP251 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
M12 B-coded 5-position connectorP252 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
M12 L-coded 5-position power connectorP253 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Contact pitch

M12 A-coded 5-position connectorP251 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
M12 B-coded 5-position connectorP252 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
M12 L-coded 5-position power connectorP253 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Dimensions / axis

M12 A-coded 5-position connectorP251 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
M12 B-coded 5-position connectorP252 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
M12 L-coded 5-position power connectorP253 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Connector role

M12 A-coded 5-position connectorP251 / Connector: Straight M12 cable plug (Phoenix Contact 1836717 / connection 1); Straight M12 cable socket (Phoenix Contact 1836717 / connection 2)S503Source-scoped examples are separate; select the exact variant and measured axis. Phoenix Contact 1836717 / connection 1. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use. Phoenix Contact 1836717 / connection 2. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.
M12 B-coded 5-position connectorP252 / Connector: T-distributor: straight M12 plugs at connections 1/2; straight M12 socket at connection 3 (Phoenix Contact 1543553)S272Source-scoped examples are separate; select the exact variant and measured axis. Phoenix Contact 1543553. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.
M12 L-coded 5-position power connectorP253 / Connector: plug; Angled M12 power cable plug; other end free cable (Phoenix Contact 1276587 / connection 1)S273 · S290 · S564Source-scoped examples are separate; select the exact variant and measured axis. M12 L-coded power-cable plug Phoenix Contact 1276587 / connection 1. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.

Coupling / latch

M12 A-coded 5-position connectorP251 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
M12 B-coded 5-position connectorP252 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
M12 L-coded 5-position power connectorP253 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Keying / polarization

M12 A-coded 5-position connectorP251 / Connector: A coding (Phoenix Contact 1836717 / connection 1); A coding (Phoenix Contact 1836717 / connection 2)S503Source-scoped examples are separate; select the exact variant and measured axis. Phoenix Contact 1836717 / connection 1. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use. Phoenix Contact 1836717 / connection 2. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.
M12 B-coded 5-position connectorP252 / Connector: B coding (Phoenix Contact 1543553)S272Source-scoped examples are separate; select the exact variant and measured axis. Phoenix Contact 1543553. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.
M12 L-coded 5-position power connectorP253 / Connector: L coding (Phoenix Contact 1276587 / connection 1)S564Source-scoped examples are separate; select the exact variant and measured axis. Phoenix Contact 1276587 / connection 1. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.

Documented identification

M12 A-coded 5-position connectorP251 / Connector: 5-position/contact recognition fact in the cited implementation.C251A
M12 B-coded 5-position connectorP252 / Connector: 5-position/contact recognition fact in the cited implementation.C252A
M12 L-coded 5-position power connectorP253 / Connector: 5-position/contact recognition fact in the cited implementation.C253A

Source-scoped component distinction

M12 A-coded 5-position connectorP251 / Connector: Not an equivalent field
M12 B-coded 5-position connectorP252 / Connector: Phoenix Contact 1543553 is a five-position B-coded M12 PROFIBUS DP T-distributor with two straight plug connections and one straight socket connection.C252C
M12 L-coded 5-position power connectorP253 / Connector: Not an equivalent field

Evidence

M12 A-coded 5-position connectorP251 / Connector: C251A,C251C,C251D →
Independent review pending
M12 B-coded 5-position connectorP252 / Connector: C252A,C252B,C252C →
Independent review pending
M12 L-coded 5-position power connectorP253 / Connector: C253A,C253C,C253D,C253E,C253F →
Independent review pending

Your next step

Use the distinction in context.

Open the field notes Read source-linked facts and limitations.Compare another pair Start from a common confusion.Check a connection A comparison is not a compatibility verdict.

Continue the distinction

Compare next

Browse every comparison →

M12 K-, L- and M-coded powerWhich keyed M12 power coding and position count does the exact equipment documentation specify? Connector identity and manufacturer ratings are only reference layers; exact circuit, wiring, installation and equipment requirements still need qualified documentation.M8, M12 and M23 circular familiesWhich circular shell family and coding does the exact equipment specify? Connector-family identity is only the first layer; implementation-specific electrical and protocol requirements still need exact documentation.USB-C vs USB Power DeliveryConnector shape and negotiated power are different layers. A USB-C port does not by itself establish a particular USB Power Delivery capability.etherCON versus ordinary 8P8C modularIs the interface a ruggedized locking etherCON system or a conventional 8P8C modular port? Connector-family identity is only the first layer; implementation-specific electrical and protocol requirements still need exact documentation.IEC 60320 C1 versus C2Is the part the C1 cord connector or C2 appliance inlet? Use the exact component identity; this comparison is not wiring or installation guidance.IEC 60320 C15 versus C15A connectorsIs the cord connector C15 or the distinct C15A very-hot-condition form? Similar naming is not permission to substitute or modify a mains cord.

Adjust this comparison

Add a field note

Evidence behind this page

Scope first. Source second. Approval separate.

9 linked sources · 11 scoped claims · 0 sources with inspection/access flags.

Page scope: Evidence behind the compared records; the editorial comparison still needs separate review.

Assessment 2026-10-22 · earliest scheduled source review 2027-01-04. This is a recorded-date assessment, not a live source check. Page-level independent review is not established by this panel.

Inspect 9 source scopes, access limits and dates

S271 · M12 A-coded 5-position sensor/actuator cable

Phoenix Contact · Manufacturer / product-owner domain · inspected 2026-10-06 · due 2027-01-04

Within inspection window

Scoped support: Identifies five-position M12 plug/socket connectors with A-coding in a sensor/actuator cable.

Not established / limitations: Identification/reference scope only. V43 does not convert this source into a universal pinout, fabrication drawing, electrical approval, protocol guarantee or end-to-end compatibility verdict.

Locator: Product properties

S272 · M12 B-coded PROFIBUS DP T-connector

Phoenix Contact · Manufacturer / product-owner domain · inspected 2026-10-06 · due 2027-01-04

Within inspection window

Scoped support: Identifies a five-position, B-coded M12 PROFIBUS DP implementation.

Locator: Product properties and interfaces

S273 · M12 L-coded 5-position power cable

Phoenix Contact · Manufacturer / product-owner domain · inspected 2026-10-06 · due 2027-01-04

Within inspection window

Scoped support: Identifies a five-position M12 L-coded power-cable connector; ratings remain product-specific and are not generalized by V43.

Locator: Product properties

S289 · M5 to M12 circular connectors — pin assignments and wire colors

Phoenix Contact · Manufacturer / product-owner domain · inspected 2026-10-06 · due 2027-01-04

Within inspection window

Scoped support: Primary manufacturer overview used for bounded M8 A-coded, M8 D-coded, M12 A-coded and M12 B-coded position numbering; the M8 D-coded PROFINET assignment is also stated explicitly.

Not established / limitations: Face-view numbering/coding applies only to the documented connector forms. V44 does not infer wire colors, protocol support or electrical ratings for arbitrary products unless explicitly claimed.

Locator: Product overview 2026, pages 70–71: M8/M12 male/female face views and data assignments

S503 · Phoenix Contact 1836717 — configurable M12 sensor cable

Phoenix Contact · Manufacturer / product-owner domain · inspected 2026-10-11 · due 2027-01-09

Within inspection window

Scoped support: Named five-position A-coded unshielded cable example. Photograph colors are not a coding or protocol standard.

Not established / limitations: Named five-position A-coded unshielded cable example. Photograph colors are not a coding or protocol standard. No raw HTML or manufacturer image archive is represented as retained.

Locator: Product description; product properties; grip-body color choices; connector ends; photograph 115698

S564 · 1276587 — configurable L-coded cable and specification levels

Phoenix Contact · Manufacturer / product-owner domain · inspected 2026-10-12 · due 2027-01-10

Within inspection window

Scoped support: The item describes an angled L-coded plug on a free cable end. Cable type and length are selectable; the cable-material voltage fields are separate from the assembly nominal-voltage field.

Not established / limitations: Configurable product example only, not an exact selected cable order or a separately ordered bare connector. No wiring map, approved mating, engineering dimensions, installation instruction or universal rating is established.

Locator: Product description, Connector / Connection 1 and 2, Electrical properties and Cable/line option blocks.

S565 · 1276587 linked angled-plug outline — media 162042

Phoenix Contact · Manufacturer / product-owner domain · inspected 2026-10-12 · due 2027-01-10

Within inspection window

Scoped support: The manufacturer-linked outline supports a qualitative side study of the configured-product family end only. No drawing revision or selected cable option is identified; dimensions and logos are omitted.

Locator: Manufacturer product 1276587, second linked gallery image: visually inspected side outline of the angled cable end, coupling region, molded body and cable exit.

S569 · 1276587 linked face-label diagram — media 141284

Phoenix Contact · Manufacturer / product-owner domain · inspected 2026-10-12 · due 2027-01-10

Within inspection window

Scoped support: This particular label diagram distinguishes FE from positions 1–4. V138 uses the labels as source-scoped recognition evidence, not a reproduced contact map, PE substitution or installation instruction.

Locator: Manufacturer product 1276587 gallery: front label drawing with positions 1, 2, 3, 4 and FE; visually inspected.

S647 · HARTING circular connector coding and application distinctions

HARTING Technology Group · Unclassified publisher domain · inspected 2026-10-15 · due 2027-01-13

Within inspection window

Scoped support: Manufacturer-authored class-level application/coding comparisons; not exact mating, terminal assignments or power ratings for arbitrary parts

Not established / limitations: Visible manufacturer facts are source-scoped and may change; exact component/revision and independently reviewed technical applicability required before publication.

Locator: Circular coding: A-coded, D-coded, K-coded, S-coded, X-coded, Y-coded sections

Trace 11 claims to their source records

C251A · P251

Phoenix Contact identifies part 1836717 as a five-position sensor/actuator cable using A-coded M12 connectors.

Claim scope: V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof.

Source links: S271 · Evidence trail → (private workspace)

C251C · P251

Phoenix Contact 1836717 is a configurable unshielded five-position M12 A-coded male-to-female sensor/actuator cable. The listing offers multiple grip-body colors, so the shown color is not a unique coding identifier.

Claim scope: V121 named-product or explicitly scoped manufacturer distinction only; no wiring instruction, independent engineering approval or end-to-end compatibility guarantee.

Source links: S503 · Evidence trail → (private workspace)

C251D · P251

HARTING describes A-coded circular connectors mainly in sensor/actuator signal and field-device power applications, whereas D-coded M12 is an industrial Ethernet form. A five-position A-coded product is not interchangeable solely because both have an M12 outer thread.

Claim scope: V178 Coding-class and application distinction only; electrical and mechanical mating of actual parts unverified. Original bounded manufacturer paraphrase; publication and technical review pending.

Source links: S647 · Evidence trail → (private workspace)

C252A · P252

Phoenix Contact identifies part 1543553 as a five-position M12 T-connector with B-coding for PROFIBUS DP.

Claim scope: V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof.

Source links: S272 · Evidence trail → (private workspace)

C252B · P252

Phoenix Contact’s 2026 circular-connector overview shows five-position M12 B-coded male and female face views with contact positions designated 1 through 5.

Claim scope: V44 contact-designation/orientation reference only; the B-coded form is not assigned a universal protocol or wire map by this claim.

Source links: S289 · Evidence trail → (private workspace)

C252C · P252

Phoenix Contact 1543553 is a five-position B-coded M12 PROFIBUS DP T-distributor with two straight plug connections and one straight socket connection.

Claim scope: Exact assembled T-distributor and end roles, not a universal M12 form, Ethernet branch adapter or authorized wiring topology.

Source links: S272 · Evidence trail → (private workspace)

C253A · P253

Phoenix Contact identifies part 1276587 as a five-position M12 power cable connector with L-coding.

Claim scope: V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof.

Source links: S273 · Evidence trail → (private workspace)

C253C · P253

Phoenix Contact 1276587 is a configurable cable assembly with an angled M12 L-coded plug and a free cable end; its description leaves cable type and length as selectable order properties.

Claim scope: V138 source-qualified recognition of the named configurable assembly only; no universal rating, unknown-equipment compatibility, wiring, dimensions, energized work or independent approval.

Source links: S564 · Evidence trail → (private workspace)

C253D · P253

The exterior drawing linked from product 1276587 shows the coupling above an angled molded body and the cable leaving through the side; this is a cable-end outline, not a separate bare connector identity.

Source links: S565 · Evidence trail → (private workspace)

C253E · P253

The face-label drawing linked from 1276587 marks four positions 1–4 and a separate FE position; those labels are not supplied here as a wiring diagram or a protective-earth assignment.

Source links: S569 · Evidence trail → (private workspace)

C253F · P253

On the 1276587 page, the assembly nominal-voltage field is 63 V DC while the listed cable-material options have separate nominal-cable-voltage fields up to 300 V AC; these fields describe different specification levels.

Source links: S564 · Evidence trail → (private workspace)

Prepare this page for review →Read the evidence method →

Recorded evidence only. An inspection date, publisher label, source link or generated packet is not independent technical review, hardware testing, fabrication approval or a compatibility verdict.