FIELD GUIDESource-led reference

Family reference

Power connectors

Use these records for connector identification and documentation lookup. A matching shape is never evidence that voltage, current, polarity or safety requirements match.

58 forms 58 engineering profiles 32 related comparisons

Recognition & reference

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Recognition illustrations are not to scale or fabrication drawings. The label-led symbols below, where present, are not interface geometry. Read the illustration limits in each exact reference; equal image boxes do not establish equal physical sizes.

Jump to a form 58 existing records
Computer-generated illustration

P271 / Power / Connector form

NEMA 1-15P plug

A familiar shell, blade or coding family does not establish voltage, current, wiring, grounding, mating or safe operation.

Shape label
blade
Common aliases
NEMA 1-15P, 1-15P, two-prong polarized plug
Computer-generated illustration

P287 / Power / Connector form

NEMA 10-30P plug

A familiar shell, blade or coding family does not establish voltage, current, wiring, grounding, mating or safe operation.

Shape label
blade
Common aliases
NEMA 10-30P, 10-30P, legacy 30 A non-grounding plug
Computer-generated illustration

P289 / Power / Connector form

NEMA 10-50P plug

A familiar shell, blade or coding family does not establish voltage, current, wiring, grounding, mating or safe operation.

Shape label
blade
Common aliases
NEMA 10-50P, 10-50P, legacy 50 A non-grounding plug
Reference table58 connector forms · names, shape labels & reference depth

An alternate overview of the same facts shown in the cards. On narrow screens, scroll the table horizontally or read the cards above. Alias lists retain the existing first four entries; the full record has further detail. This is not a dimension, pinout or compatibility table.

Connector forms in the Power family
Connector formShapeCommon aliasesEngineering
5.5 x 2.1 mm barrel connector: identification onlyroundbarrel plug, DC jack, 5.5 2.1, 5521Engineering profile →
IEC 60320 C13 cord connectorrectangularC13, IEC C13, computer power cord connectorEngineering profile →
IEC 60320 C14 appliance inletrectangularC14, IEC C14, computer power inletEngineering profile →
IEC 60320 C15 hot-condition cord connectorrectangularC15, IEC C15, hot condition connectorEngineering profile →
IEC 60320 C16 hot-condition appliance inletrectangularC16, IEC C16, hot condition inletEngineering profile →
IEC 60320 C19 cord connectorrectangularC19, IEC C19, high current IEC cord connectorEngineering profile →
IEC 60320 C20 appliance inletrectangularC20, IEC C20, high current IEC inletEngineering profile →
NEMA 5-15P plugblade5-15P, NEMA 5-15 plug, US grounded plugEngineering profile →
NEMA 5-15R receptacleslot5-15R, NEMA 5-15 receptacle, US grounded outletEngineering profile →
NEMA 5-20P plugblade5-20P, NEMA 5-20 plug, 20 amp plugEngineering profile →
NEMA 5-20R receptacleslot5-20R, NEMA 5-20 receptacle, T-slot outletEngineering profile →
IEC 60320 C5 cord connectorkeyedC5, IEC C5, cloverleaf power connectorEngineering profile →
IEC 60320 C6 appliance inletkeyedC6, IEC C6, cloverleaf appliance inletEngineering profile →
IEC 60320 C7 cord connectorovalC7, IEC C7, figure-8 power connectorEngineering profile →
IEC 60320 C8 appliance inletovalC8, IEC C8, figure-8 appliance inletEngineering profile →
IEC 60320 C17 cord connectorrectangularC17, IEC C17Engineering profile →
IEC 60320 C18 appliance inletrectangularC18, IEC C18Engineering profile →
NEMA L5-20P locking plugroundL5-20P, NEMA L5-20P, 20A 125V Twist-Lock plugEngineering profile →
NEMA L5-20R locking receptacleroundL5-20R, NEMA L5-20R, 20A 125V Twist-Lock receptacleEngineering profile →
NEMA L6-20P locking plugroundL6-20P, NEMA L6-20P, 20A 250V Twist-Lock plugEngineering profile →
NEMA L6-20R locking receptacleroundL6-20R, NEMA L6-20R, 20A 250V Twist-Lock receptacleEngineering profile →
M12 L-coded 5-position power connectorroundM12 L-coded, M12 L code, 5-pin M12 power, M12 power L-codedEngineering profile →
M12 S-coded 3-position power connectorroundM12 S-coded 3-pin, M12 S code 3-position, 3-position M12 S powerEngineering profile →
M12 S-coded 4-position power connectorroundM12 S-coded 4-pin, M12 S code 4-position, 4-position M12 S powerEngineering profile →
M12 T-coded 4-position DC power connectorroundM12 T-coded, M12 T code, 4-position M12 T powerEngineering profile →
M12 K-coded 5-position power connectorroundM12 K-coded, M12 K code, 5-position M12 K powerEngineering profile →
M12 M-coded 6-position power connectorroundM12 M-coded, M12 M code, 6-position M12 M powerEngineering profile →
NEMA 1-15P plugbladeNEMA 1-15P, 1-15P, two-prong polarized plugEngineering profile →
NEMA 1-15R connectorslotNEMA 1-15R, 1-15R, two-slot polarized connectorEngineering profile →
NEMA 6-15P plugbladeNEMA 6-15P, 6-15P, 250 V 15 A plugEngineering profile →
NEMA 6-15R receptacleslotNEMA 6-15R, 6-15R, 250 V 15 A receptacleEngineering profile →
NEMA 6-20P plugbladeNEMA 6-20P, 6-20P, 250 V 20 A plugEngineering profile →
NEMA 6-20R receptacleslotNEMA 6-20R, 6-20R, 250 V 20 A receptacleEngineering profile →
NEMA 14-30P plugbladeNEMA 14-30P, 14-30P, 30 A 125/250 V plugEngineering profile →
NEMA 14-30R receptacleslotNEMA 14-30R, 14-30R, 30 A 125/250 V receptacleEngineering profile →
NEMA 14-50P plugbladeNEMA 14-50P, 14-50P, 50 A 125/250 V plugEngineering profile →
NEMA 14-50R receptacleslotNEMA 14-50R, 14-50R, 50 A 125/250 V receptacleEngineering profile →
NEMA TT-30P RV plugbladeNEMA TT-30P, TT-30P, RV 30 amp plugEngineering profile →
NEMA TT-30R RV receptacleslotNEMA TT-30R, TT-30R, RV 30 amp receptacleEngineering profile →
NEMA L14-20P locking plugroundNEMA L14-20P, L14-20P, 20 A 125/250 V locking plugEngineering profile →
NEMA L14-20R locking connectorroundNEMA L14-20R, L14-20R, 20 A 125/250 V locking connectorEngineering profile →
NEMA L14-30P locking plugroundNEMA L14-30P, L14-30P, 30 A 125/250 V locking plugEngineering profile →
NEMA L14-30R locking connectorroundNEMA L14-30R, L14-30R, 30 A 125/250 V locking connectorEngineering profile →
NEMA 10-30P plugbladeNEMA 10-30P, 10-30P, legacy 30 A non-grounding plugEngineering profile →
NEMA 10-30R receptacleslotNEMA 10-30R, 10-30R, legacy 30 A non-grounding receptacleEngineering profile →
NEMA 10-50P plugbladeNEMA 10-50P, 10-50P, legacy 50 A non-grounding plugEngineering profile →
NEMA 10-50R receptacleslotNEMA 10-50R, 10-50R, legacy 50 A non-grounding receptacleEngineering profile →
IEC 60320 C1 cord connectorrectangularC1, IEC C1, razor connectorEngineering profile →
IEC 60320 C2 appliance inletrectangularC2, IEC C2, razor inletEngineering profile →
IEC 60320 C9 cord connectorrectangularC9, IEC C9Engineering profile →
IEC 60320 C10 appliance inletrectangularC10, IEC C10Engineering profile →
IEC 60320 C15A very-hot-condition cord connectorrectangularC15A, IEC C15A, very hot condition connectorEngineering profile →
IEC 60320 C16A very-hot-condition appliance inletrectangularC16A, IEC C16A, very hot condition inletEngineering profile →
IEC 60320 C21 very-hot-condition cord connectorrectangularC21, IEC C21, very hot condition connectorEngineering profile →
IEC 60320 C22 very-hot-condition appliance inletrectangularC22, IEC C22, very hot condition inletEngineering profile →
IEC 60320 C23 cord connectorrectangularC23, IEC C23, Class II C23Engineering profile →
IEC 60320 C24 appliance inletrectangularC24, IEC C24, Class II C24Engineering profile →
5.5 x 2.5 mm barrel connector: identification onlyround5.5 2.5, 5525, 5.5mm 2.5mm DC plug, 2.5 mm barrel boreEngineering profile →

Tell them apart

Useful Power comparisons

Related pages may include forms from another family. They explain distinctions, not permission to connect.

Similar at first glance

Look-alike groups

Before choosing a reference

Power names and terminology

Resolve abbreviations, informal names and legacy labels without treating an alias as an additional connector identity.

Open Power terminology and aliases →

Continue with the evidence

From the form to the task.

A family name is a starting point. Use the exact record and device documentation before choosing cables or planning a connection.