Side by side

M8, M12 and M23 circular families

Which circular shell family and coding does the exact equipment specify?

Computer-generated illustration, not a photograph. — P249 · ConnectorM8 A-coded 4-position connector

How they differ

M8 A-coded 4-position connector Confirm M8 thread size, A-coding and four-position insert from the exact component or cable documentation before assigning signal use.
M12 A-coded 5-position connector Confirm A-coding and the five-position insert from product documentation, then separately verify the system signal assignment.
M23 12-position signal connector Verify the M23 series, coding and 12-position insert from component documentation before treating it as a known signal connection.

Then askWhich circular shell family and coding does the exact equipment specify?

At a glance

Source-scoped form facts; counts, variants and unknowns are distinct
Field	M8 A-coded 4-position connector	M12 A-coded 5-position connector	M23 12-position signal connector
Type	Connector	Connector	Connector
Family	Network	Network	Network
Shape	round	round	round
Nominal contacts	4S269Source-backed nominal position/contact count: 4.	5S271Source-backed nominal position/contact count: 5.	12S274Source-backed nominal position/contact count: 12.
Positions / cavity span	4 (Claim C249A); 4 (Claim C249B); 4 (Claim C249C); 4 (Phoenix Contact 1453481)S269 · S289 · S502 · S502Source-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. Phoenix Contact 1453481. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.	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.	12 (Claim C254A); 12 (Claim C254B)S274 · S320Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. V48 component-level orientation and mating-context reference only; no universal M23 signal assignment, wiring map or fabrication tolerance is inferred.
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	Rear-mounted device connector, straight pin side with individual wire tails (Phoenix Contact 1453481)S502Source-scoped examples are separate; select the exact variant and measured axis. Phoenix Contact 1453481. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.	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.	plug (M23-12P1N8AA600S /1628494)S274Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. M23-12P1N8AA600S /1628494. Documented role: plug. Crimp contacts1mmdiameter are separately purchased; do not claim an assembled specimen with12populatedcontacts. ThreadM23 is a thread designation,not contact pitch.
Key distinction	The M8 threaded shell does not identify coding or function. A- and D-coded inserts are separate keyed forms.	An M12 threaded shell is only the outer family; coding and position pattern must be verified before any signal or power assumption.	The M23 shell family spans configurations, so a 12-position example does not establish universal wiring or electrical behavior.

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

The reference ledger

Read the same question across.

3 selected records · 13 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	P249 / ConnectorM8 A-coded 4-position connector Identification schematic · not to scale · drawing review pending	P251 / ConnectorM12 A-coded 5-position connector Identification schematic · not to scale · drawing review pending	P254 / ConnectorM23 12-position signal connector Identification schematic · not to scale · drawing review pending
Layer	Connector	Connector	Connector
Key distinction	The M8 threaded shell does not identify coding or function. A- and D-coded inserts are separate keyed forms.	An M12 threaded shell is only the outer family; coding and position pattern must be verified before any signal or power assumption.	The M23 shell family spans configurations, so a 12-position example does not establish universal wiring or electrical behavior.
Nominal contacts	4S269Source-backed nominal position/contact count: 4.	5S271Source-backed nominal position/contact count: 5.	12S274Source-backed nominal position/contact count: 12.
Positions / cavity span	4 (Claim C249A); 4 (Claim C249B); 4 (Claim C249C); 4 (Phoenix Contact 1453481)S269 · S289 · S502 · S502Source-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. Phoenix Contact 1453481. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.	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.	12 (Claim C254A); 12 (Claim C254B)S274 · S320Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. V48 component-level orientation and mating-context reference only; no universal M23 signal assignment, wiring map or fabrication tolerance is inferred.
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.	28 mm Flange width (Recorded example component); 28 mm Flange height (Recorded example component); 28 mm square flange width (M23-12P1N8AA600S /1628494); 28 mm square flange height (M23-12P1N8AA600S /1628494)S320 · S274Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. example_component; M23 PRO N-coded 12-position signal device connector example M23-12P1N8AA600S /1628494. Documented role: plug. Crimp contacts1mmdiameter are separately purchased; do not claim an assembled specimen with12populatedcontacts. ThreadM23 is a thread designation,not contact pitch.
Connector role	Rear-mounted device connector, straight pin side with individual wire tails (Phoenix Contact 1453481)S502Source-scoped examples are separate; select the exact variant and measured axis. Phoenix Contact 1453481. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.	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.	plug (M23-12P1N8AA600S /1628494)S274Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. M23-12P1N8AA600S /1628494. Documented role: plug. Crimp contacts1mmdiameter are separately purchased; do not claim an assembled specimen with12populatedcontacts. ThreadM23 is a thread designation,not contact pitch.
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 1453481)S502Source-scoped examples are separate; select the exact variant and measured axis. Phoenix Contact 1453481. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.	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.	N coding; standard direction of rotation; standard/ONECLICK locking (M23-12P1N8AA600S /1628494)S274Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. M23-12P1N8AA600S /1628494. Documented role: plug. Crimp contacts1mmdiameter are separately purchased; do not claim an assembled specimen with12populatedcontacts. ThreadM23 is a thread designation,not contact pitch.
Documented identification	4-position/contact recognition fact in the cited implementation.C249A	5-position/contact recognition fact in the cited implementation.C251A	12-position/contact recognition fact in the cited implementation.C254A
Evidence	C249A,C249C → Independent review pending	C251A,C251C,C251D → Independent review pending	C254A → 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

M8 A-coded 4-position connectorP249 / Connector: Connector
M12 A-coded 5-position connectorP251 / Connector: Connector
M23 12-position signal connectorP254 / Connector: Connector

Key distinction

M8 A-coded 4-position connectorP249 / Connector: The M8 threaded shell does not identify coding or function. A- and D-coded inserts are separate keyed forms.
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.
M23 12-position signal connectorP254 / Connector: The M23 shell family spans configurations, so a 12-position example does not establish universal wiring or electrical behavior.

Nominal contacts

M8 A-coded 4-position connectorP249 / Connector: 4S269Source-backed nominal position/contact count: 4.
M12 A-coded 5-position connectorP251 / Connector: 5S271Source-backed nominal position/contact count: 5.
M23 12-position signal connectorP254 / Connector: 12S274Source-backed nominal position/contact count: 12.

Positions / cavity span

M8 A-coded 4-position connectorP249 / Connector: 4 (Claim C249A); 4 (Claim C249B); 4 (Claim C249C); 4 (Phoenix Contact 1453481)S269 · S289 · S502 · S502Source-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. Phoenix Contact 1453481. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.
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.
M23 12-position signal connectorP254 / Connector: 12 (Claim C254A); 12 (Claim C254B)S274 · S320Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. V43 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. V48 component-level orientation and mating-context reference only; no universal M23 signal assignment, wiring map or fabrication tolerance is inferred.

Populated contacts

M8 A-coded 4-position connectorP249 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
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.
M23 12-position signal connectorP254 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Contact rows

M8 A-coded 4-position connectorP249 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
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.
M23 12-position signal connectorP254 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Contact pitch

M8 A-coded 4-position connectorP249 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
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.
M23 12-position signal connectorP254 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Dimensions / axis

M8 A-coded 4-position connectorP249 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
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.
M23 12-position signal connectorP254 / Connector: 28 mm Flange width (Recorded example component); 28 mm Flange height (Recorded example component); 28 mm square flange width (M23-12P1N8AA600S /1628494); 28 mm square flange height (M23-12P1N8AA600S /1628494)S320 · S274Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. example_component; M23 PRO N-coded 12-position signal device connector example M23-12P1N8AA600S /1628494. Documented role: plug. Crimp contacts1mmdiameter are separately purchased; do not claim an assembled specimen with12populatedcontacts. ThreadM23 is a thread designation,not contact pitch.

Connector role

M8 A-coded 4-position connectorP249 / Connector: Rear-mounted device connector, straight pin side with individual wire tails (Phoenix Contact 1453481)S502Source-scoped examples are separate; select the exact variant and measured axis. Phoenix Contact 1453481. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.
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.
M23 12-position signal connectorP254 / Connector: plug (M23-12P1N8AA600S /1628494)S274Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. M23-12P1N8AA600S /1628494. Documented role: plug. Crimp contacts1mmdiameter are separately purchased; do not claim an assembled specimen with12populatedcontacts. ThreadM23 is a thread designation,not contact pitch.

Coupling / latch

M8 A-coded 4-position connectorP249 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.
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.
M23 12-position signal connectorP254 / Connector: Not recordedNot recorded in a normalized source-scoped field. Consult the exact part/revision; no value inferred from illustrations.

Keying / polarization

M8 A-coded 4-position connectorP249 / Connector: A coding (Phoenix Contact 1453481)S502Source-scoped examples are separate; select the exact variant and measured axis. Phoenix Contact 1453481. Named primary-source example only. Identification facts do not certify mating, electrical compatibility, fabrication or powered use.
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.
M23 12-position signal connectorP254 / Connector: N coding; standard direction of rotation; standard/ONECLICK locking (M23-12P1N8AA600S /1628494)S274Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. M23-12P1N8AA600S /1628494. Documented role: plug. Crimp contacts1mmdiameter are separately purchased; do not claim an assembled specimen with12populatedcontacts. ThreadM23 is a thread designation,not contact pitch.

Documented identification

M8 A-coded 4-position connectorP249 / Connector: 4-position/contact recognition fact in the cited implementation.C249A
M12 A-coded 5-position connectorP251 / Connector: 5-position/contact recognition fact in the cited implementation.C251A
M23 12-position signal connectorP254 / Connector: 12-position/contact recognition fact in the cited implementation.C254A

Evidence

M8 A-coded 4-position connectorP249 / Connector: C249A,C249C →
Independent review pending
M12 A-coded 5-position connectorP251 / Connector: C251A,C251C,C251D →
Independent review pending
M23 12-position signal connectorP254 / Connector: C254A →
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 A-coded versus B-coded versus L-codedWhich M12 coding and intended domain does the equipment documentation specify? Connector-family identity is only the first layer; implementation-specific electrical and protocol requirements still need exact documentation.M8 A-coded versus D-codedWhich M8 coding is documented: A-coded signal/sensor or D-coded data? Connector-family identity is only the first layer; implementation-specific electrical and protocol requirements still need exact documentation.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.M12 D-, X- and Y-coded data/hybrid formsDoes the exact interface require D-coded, X-coded or Y-coded M12 rather than merely an M12 shell? Connector identity and manufacturer ratings are only reference layers; exact circuit, wiring, installation and equipment requirements still need qualified documentation.M12 D-coded versus X-coded EthernetWhich M12 coding and position pattern is documented for the Ethernet port? Connector-family identity is only the first layer; implementation-specific electrical and protocol requirements still need exact documentation.M8 D-coded versus M12 D-codedIs the D-coded industrial Ethernet connector M8 or M12? Connector-family identity is only the first layer; implementation-specific electrical and protocol requirements still need exact documentation.

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Add a field note

Evidence behind this page

Scope first. Source second. Approval separate.

6 linked sources · 6 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 6 source scopes, access limits and dates

S269 · M8 A-coded 4-position device connector

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

Within inspection window

Scoped support: Identifies an M8 A-coded, four-position device-side connector; V43 uses only coding/count/form facts.

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

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.

Locator: Product properties

S274 · M23 PRO 12-position signal connector

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

Within inspection window

Scoped support: Identifies an M23 PRO signal connector with 12 positions and N coding; V43 uses identification facts only.

Locator: Product description

S502 · Phoenix Contact 1453481 — rear-mounted M8 device connector

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

Within inspection window

Scoped support: Named rear-mounted A-coded male device connector and free leads; no inferred wire functions or network protocol.

Not established / limitations: Named rear-mounted A-coded male device connector and free leads; no inferred wire functions or network protocol. No raw HTML or manufacturer image archive is represented as retained.

Locator: Product description; mounting type; product properties; connection data; photograph 241274

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

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; confirm the exact component/revision and documented applicability; no independent technical certification is claimed.

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

Trace 6 claims to their source records

C249A · P249

Phoenix Contact identifies part 1453481 as a four-position M8 connector with A-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: S269 · Evidence trail → (private workspace)

C249C · P249

Phoenix Contact 1453481 is a straight four-position A-coded M8 male device connector for rear mounting, with individual leads; the product listing calls it unshielded. It is not described as a ready-made Ethernet patch cable.

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: S502 · Evidence trail → (private workspace)

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)

C254A · P254

Phoenix Contact identifies part 1628494 as an M23 PRO signal connector with 12 positions.

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: S274 · 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.