Is the documented 30 A-class receptacle the legacy non-grounding 10-30R form or grounding four-wire 14-30R form?
P288 · ConnectorNEMA 10-30R receptacle≠
P278 · ConnectorNEMA 14-30R receptacle
How they differ
NEMA 10-30R receptacle Use the NEMA marking and qualified electrical documentation; do not use this reference as a rewiring or installation guide.
NEMA 14-30R receptacle Use permanent NEMA markings and exact electrical documentation; a physical resemblance is not an installation approval.
Then askIs the documented 30 A-class receptacle the legacy non-grounding 10-30R form or grounding four-wire 14-30R form?
At a glance
Source-scoped form facts; counts, variants and unknowns are distinct
Field
NEMA 10-30R receptacle
NEMA 14-30R receptacle
Type
Connector
Connector
Family
Power
Power
Shape
slot
slot
Nominal contacts
3S317Source-backed nominal position/contact/conductor count for identification: 3. Not a wiring diagram or installation instruction.
4S307Source-backed nominal position/contact/conductor count for identification: 4. Not a wiring diagram or installation instruction.
Positions / cavity span
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.
Connector role
socket (5207-S10)S317Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. 5207-S10. Documented role: socket. Manufacturer specification for named part only. No mating-face pin numbering, connector dimension or contact pitch inferred from wire acceptance ranges.; Generic terminal-color list includes Green/Ground despite non-grounding form. Do not turn template list into a three-contact electrical map.
socket (55054-P00)S307Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. 55054-P00. Documented role: socket. Manufacturer specification for named part only. No mating-face pin numbering, connector dimension or contact pitch inferred from wire acceptance ranges.
Key distinction
A familiar shell, blade or coding family does not establish voltage, current, wiring, grounding, mating or safe operation.
A familiar shell, blade or coding family does not establish voltage, current, wiring, grounding, mating or safe operation.
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: Power
The reference ledger
Read the same question across.
2 selected records · 13 fields No score. No compatibility verdict.
Identification schematic · not to scale · drawing review pending
Layer
Connector
Connector
Key distinction
A familiar shell, blade or coding family does not establish voltage, current, wiring, grounding, mating or safe operation.
A familiar shell, blade or coding family does not establish voltage, current, wiring, grounding, mating or safe operation.
Nominal contacts
3S317Source-backed nominal position/contact/conductor count for identification: 3. Not a wiring diagram or installation instruction.
4S307Source-backed nominal position/contact/conductor count for identification: 4. Not a wiring diagram or installation instruction.
Positions / cavity span
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.
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.
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.
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.
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.
Connector role
socket (5207-S10)S317Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. 5207-S10. Documented role: socket. Manufacturer specification for named part only. No mating-face pin numbering, connector dimension or contact pitch inferred from wire acceptance ranges.; Generic terminal-color list includes Green/Ground despite non-grounding form. Do not turn template list into a three-contact electrical map.
socket (55054-P00)S307Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. 55054-P00. Documented role: socket. Manufacturer specification for named part only. No mating-face pin numbering, connector dimension or contact pitch inferred from wire acceptance ranges.
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.
Keying / polarization
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.
Documented identification
3-position/contact/conductor recognition fact in the cited implementation.C288A
4-position/contact/conductor recognition fact in the cited implementation.C278A
socket (5207-S10)S317Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. 5207-S10. Documented role: socket. Manufacturer specification for named part only. No mating-face pin numbering, connector dimension or contact pitch inferred from wire acceptance ranges.; Generic terminal-color list includes Green/Ground despite non-grounding form. Do not turn template list into a three-contact electrical map.
socket (55054-P00)S307Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. 55054-P00. Documented role: socket. Manufacturer specification for named part only. No mating-face pin numbering, connector dimension or contact pitch inferred from wire acceptance ranges.
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.
Scoped support: Primary manufacturer identification reference for NEMA 14-30R receptacle: V47 normalizes the named connector designation and 4-position/contact/conductor context only.
Not established / limitations: Identification/reference scope only. V47 does not turn this source into a universal wiring map, installation approval, safe-use recommendation, fabrication drawing or end-to-end compatibility verdict.
Locator: Product description and Technical Information
Scoped support: Primary manufacturer identification reference for NEMA 10-30R receptacle: V47 normalizes the named connector designation and 3-position/contact/conductor context only.
Not established / limitations: Identification/reference scope only. V47 does not turn this source into a universal wiring map, installation approval, safe-use recommendation, fabrication drawing or end-to-end compatibility verdict.
Locator: Product description and Technical Information
Trace 4 claims to their source records
C278A · P278
Leviton identifies 55054-P00 as a NEMA 14-30R, 30 A, 125/250 V, 3-pole 4-wire grounding receptacle.
Claim scope: V47 identification fact only; the cited product establishes the named connector/configuration and narrow position/conductor context, not universal wiring, mating, installation safety or interchangeability.
Exact source example 55054-P00: construction: Surface-mount3pole4wire grounding receptacle; side-wired; thermoplastic body and galvanized-steel strap. rating: 30 A125/250 V. Exact manufacturer part; construction, role and regional rating remain scoped. No physical compatibility, pin map or hardware validation is established.
Claim scope: Exact named component/family technical construction reference from the full current primary document; geometry, ratings and implementation limits do not transfer to other variants.
Leviton identifies 5207-S10 as a NEMA 10-30R, 30 A, 3-pole 3-wire non-grounding receptacle.
Claim scope: V47 identification fact only; the cited product establishes the named connector/configuration and narrow position/conductor context, not universal wiring, mating, installation safety or interchangeability.
Exact source example 5207-S10: construction: Flush-mount3pole3wire non-grounding receptacle; side-wired; high-impact thermoplastic and copper contacts. rating: 30 A125/250 V. Exact manufacturer part; construction, role and regional rating remain scoped. No physical compatibility, pin map or hardware validation is established.
Claim scope: Exact named component/family technical construction reference from the full current primary document; geometry, ratings and implementation limits do not transfer to other variants.
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.
