E218 · Contact count only

NEMA L5-20R locking receptacle engineering reference

Manufacturer listing identifies L5-20R as 2-pole, 3-wire grounding; V40 publishes count only, not terminal placement. Current source example: Exact source example HBL2310: construction: Single flush nylon-face receptacle;brass grounding strap;back and side wired;2pole3wiregrounding. rating: 20A125VAC. temperature: 75Cmaximumcontinuous;-40Cwithoutimpact. Exact named variant only. Wire accommodation excluded from connector dimensions.; HBL2310flush variant is different from existing shrouded angled source;preserve both exact scopes.; No literal terminal labels or visible face legend transcribed from faint photograph. No physical compatibility, pin map or hardware validation is established.

Open field note Source trail

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

NEMA L5-20R locking receptacle engineering boundary original orientation schematic — Original V40 engineering boundary schematic; not to scale and not a fabrication, gauging, wiring or mating-face locator drawing.

Contact count

3

NEMA L5-20R locking receptacle

Mating boundary

Shape is not the verdict.

NEMA L5-20R locking receptacle/connector ↔ matching NEMA L5-20P plug

Orientation

How to read this profile

No V40 face-view or terminal locator; do not infer conductor placement from this profile.

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 contacts	3S223NEMA L5-20R locking receptacle; nominal engineering count, not automatically positions, population or a device wiring map. NEMA L5-20R locking receptacle
Dimensions / axis	3.28 in manufacturer labelled length (HBL2310); 1.7 in manufacturer labelled width (HBL2310); 1.23 in manufacturer labelled height (HBL2310)S930Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. HBL2310. Documented role: socket. Exact named variant only. Wire accommodation excluded from connector dimensions.; HBL2310flush variant is different from existing shrouded angled source;preserve both exact scopes.; No literal terminal labels or visible face legend transcribed from faint photograph.
Connector role	socket; socket (HBL2310)S223 · S930Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. NEMA L5-20R locking receptacle HBL2310. Documented role: socket. Exact named variant only. Wire accommodation excluded from connector dimensions.; HBL2310flush variant is different from existing shrouded angled source;preserve both exact scopes.; No literal terminal labels or visible face legend transcribed from faint photograph.
Manufacturer	Hubbell Wiring Device-Kellems (HBL2310)S930Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. HBL2310. Documented role: socket. Exact named variant only. Wire accommodation excluded from connector dimensions.; HBL2310flush variant is different from existing shrouded angled source;preserve both exact scopes.; No literal terminal labels or visible face legend transcribed from faint photograph.
Series	Twist-Lock (HBL2310)S930Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. HBL2310. Documented role: socket. Exact named variant only. Wire accommodation excluded from connector dimensions.; HBL2310flush variant is different from existing shrouded angled source;preserve both exact scopes.; No literal terminal labels or visible face legend transcribed from faint photograph.
Exact part / implementation	HBL2310 (HBL2310)S930Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. HBL2310. Documented role: socket. Exact named variant only. Wire accommodation excluded from connector dimensions.; HBL2310flush variant is different from existing shrouded angled source;preserve both exact scopes.; No literal terminal labels or visible face legend transcribed from faint photograph.
Recorded markings	Manufacturer documents terminal identification in accordance withUL498. (HBL2310)S930Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. HBL2310. Documented role: socket. Exact named variant only. Wire accommodation excluded from connector dimensions.; HBL2310flush variant is different from existing shrouded angled source;preserve both exact scopes.; No literal terminal labels or visible face legend transcribed from faint photograph.
View convention	Published oblique view toward receptacle mating face;no terminal numbering map adopted. (HBL2310)S930Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. HBL2310. Documented role: socket. Exact named variant only. Wire accommodation excluded from connector dimensions.; HBL2310flush variant is different from existing shrouded angled source;preserve both exact scopes.; No literal terminal labels or visible face legend transcribed from faint photograph.

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

Recorded variant and source limits

Contact/pole count does not establish terminal placement, conductor colors, voltage compatibility or safe substitution.
No fabrication dimensions, live-work procedure or device-level electrical approval is published.

Report a correction to these facts →

Unknowns stay unknown.

Contact/pole count does not establish terminal placement, conductor colors, voltage compatibility or safe substitution.
No fabrication dimensions, live-work procedure or device-level electrical approval is published.

Your next step

Use the detail without guessing past its limits.

Read the connector field note Recognition clues and practical checks.Work through a connection Keep exact equipment and cable requirements separate.

Source trail

Claims and sources

C218Bsource checked

Hubbell identifies the L5-20R form as a 2-pole, 3-wire grounding locking receptacle.

Hubbell Wiring Device-Kellems · HBL2310AR Twist-Lock L5-20R receptacle ↗
NEMA rating and conductor-related fields · Identification/reference scope only. V39 does not convert this source into a universal pinout, fabrication drawing, electrical approval, protocol guarantee or end-to-end compatibility verdict.

C218Csource checked

Exact source example HBL2310: construction: Single flush nylon-face receptacle;brass grounding strap;back and side wired;2pole3wiregrounding. rating: 20A125VAC. temperature: 75Cmaximumcontinuous;-40Cwithoutimpact. Exact named variant only. Wire accommodation excluded from connector dimensions.; HBL2310flush variant is different from existing shrouded angled source;preserve both exact scopes.; No literal terminal labels or visible face legend transcribed from faint photograph. No physical compatibility, pin map or hardware validation is established.

Hubbell Wiring Device-Kellems · HBL2310 L5-20R flush receptacle specification ↗
pp.1–2description,dimensions,performance,revisionfooter · No independent technical review, hardware validation, specimen measurement or general interoperability approval. Exact scopes and unresolved fields remain controlling.

2 source records support this profile. No independent engineering review or hardware validation is claimed.

Evidence behind this page

Scope first. Source second. Approval separate.

2 linked sources · 2 scoped claims · 0 sources with inspection/access flags.

Page scope: Original V40 engineering boundary schematic; not to scale and not a fabrication, gauging, wiring or mating-face locator drawing.

Assessment 2026-10-22 · earliest scheduled source review 2027-01-03. This is a recorded-date assessment, not a live source check. Page-level independent review is not established by this panel.

Inspect 2 source scopes, access limits and dates

S223 · HBL2310AR Twist-Lock L5-20R receptacle

Hubbell Wiring Device-Kellems · Manufacturer / product-owner domain · inspected 2026-10-05 · due 2027-01-03

Within inspection window

Scoped support: Identifies the NEMA L5-20R locking receptacle configuration as a 20 A, 125 V, 2-pole, 3-wire grounding form.

Not established / limitations: Identification/reference scope only. V39 does not convert this source into a universal pinout, fabrication drawing, electrical approval, protocol guarantee or end-to-end compatibility verdict.

Locator: NEMA rating and conductor-related fields

S930 · HBL2310 L5-20R flush receptacle 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 P218 / HBL2310. 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.1–2description,dimensions,performance,revisionfooter

Trace 2 claims to their source records

C218B · P218

Hubbell identifies the L5-20R form as a 2-pole, 3-wire grounding locking receptacle.

Claim scope: V40 engineering-reference fact only; independent human review remains pending. This claim does not approve fabrication, rewiring, substitution, electrical safety, protocol support or end-to-end compatibility.

Source links: S223 · Evidence trail → (private workspace)

C218C · P218

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: S930 · 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.