FIELD GUIDESource-led reference

E355 · No electrical assignment published

NEMA 5-20P plug engineering reference

Exact source example HBL5366C: construction: Cord-mounted straight-blade male5-20P plug;2pole3wire grounding. rating: 20A125VAC. temperature: -40C without impact to75C continuous. Exact named part only. Product specification is not a specimen measurement or interoperability approval. No physical compatibility, pin map or hardware validation is established.

Source checked · no independent review claimed · Fabrication approved: no

NEMA 5-20P plug — original, not-to-scale identification schematic; drawing review pending
View Not declared in this illustrationDepiction Plug/receptacle role not specifiedNot to scale · independent drawing review pending
Identification schematic only · not to scale · drawing review pending. No engineering drawing is published for this profile.

Orientation

How to read this profile

Published oblique view toward plug mating face; no terminal numbering map.

Source-scoped identification facts

Each value retains its exact example, role and measurement axis. Facts from different parts must not be combined into an invented component.

Documented examples; not a mating drawing or compatibility approval
Nominal contacts3S196Three conductors are represented by the form; this is not a wiring diagram.
Dimensions / axis1.52 in manufacturer labelled length (HBL5366C); 1.52 in manufacturer labelled width (HBL5366C); 1.96 in manufacturer labelled height (HBL5366C)S900Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. HBL5366C. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.
Connector roleplug (HBL5366C)S900Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. HBL5366C. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.
Keying / polarizationTwo flat blades at right angles plus grounding blade in published oblique mating-face photo (HBL5366C)S900Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. HBL5366C. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.
ManufacturerHubbell Wiring Device-Kellems (HBL5366C)S900Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. HBL5366C. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.
SeriesInsulgrip (HBL5366C)S900Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. HBL5366C. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.
Exact part / implementationHBL5366C (HBL5366C)S900Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. HBL5366C. Documented role: plug. Exact named part only. Product specification is not a specimen measurement or interoperability approval.

Not recorded: Positions / cavity span, Populated contacts, Contact rows, Contact pitch, Contact gender / arrangement, Mounting, Coupling / latch, Shell / form, Recorded markings, View convention. Unknown fields stay unknown; illustrations supply no measurements or pin assignments.

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Unknowns stay unknown.

  • No numbered contact assignment, fabrication clearance or specimen measurement is established by this construction profile.
  • Exact named part only. Product specification is not a specimen measurement or interoperability approval.

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Use the detail without guessing past its limits.

Source trail

Claims and sources

C187Bsource checked

Exact source example HBL5366C: construction: Cord-mounted straight-blade male5-20P plug;2pole3wire grounding. rating: 20A125VAC. temperature: -40C without impact to75C continuous. Exact named part only. Product specification is not a specimen measurement or interoperability approval. No physical compatibility, pin map or hardware validation is established.

Hubbell Wiring Device-Kellems · HBL5366C straight-blade male plug specification ↗
pp.1-2; Dimensions; Electrical Ratings; photo; revisionfooter · No independent technical review, hardware validation, specimen measurement or general interoperability approval. Exact scopes and unresolved fields remain controlling.

1 source record support this profile. No independent engineering review or hardware validation is claimed.

Evidence behind this page

Scope first. Source second. Approval separate.

1 linked sources · 1 scoped claims · 0 sources with inspection/access flags.

Page scope: No new drawing: source-scoped textual construction facts and separately labelled normalized identification evidence only.

Assessment 2026-10-22 · earliest scheduled source review 2027-01-20. This is a recorded-date assessment, not a live source check. Page-level independent review is not established by this panel.

Inspect 1 source scopes, access limits and dates

S900 · HBL5366C straight-blade male plug specification

Hubbell Wiring Device-Kellems · Unclassified publisher domain · inspected 2026-10-22 · due 2027-01-20

Within inspection window

Scoped support: Current primary-document research for P187 / HBL5366C. Each normalized fact retains its exact part/family, role and document scope.

Not established / limitations: No independent technical review, hardware validation, specimen measurement or general interoperability approval. Exact scopes and unresolved fields remain controlling.

Locator: pp.1-2; Dimensions; Electrical Ratings; photo; revisionfooter

Trace 1 claims to their source records

C187B · P187

Exact source example HBL5366C: construction: Cord-mounted straight-blade male5-20P plug;2pole3wire grounding. rating: 20A125VAC. temperature: -40C without impact to75C continuous. Exact named part only. Product specification is not a specimen measurement or interoperability approval. 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.

Source links: S900 · Evidence trail → (private workspace)

Prepare this page for review → (private workspace)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.