20A Breakers | McMaster-Carr

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	Current Current	Show

20A

	Current Current	Hide

	Voltage Voltage

	Manufacturer Manufacturer

Square D

Siemens

Cutler-Hammer

	Manufacturer Series Manufacturer Series

Homeline

QOB

	Number of Poles Number of Poles

	Wire Connection Type Wire Connection Type


Snap On	Screw-Clamp Terminals

Quick- Disconnect Terminals	Screw Terminals

Wire Leads

	Mounting Location Mounting Location

	System of Measurement System of Measurement

Inch

	Width Width

	Specifications Met Specifications Met

	Circuit Breaker Type Circuit Breaker Type

Thermal

Magnetic

Hydraulic

	Manual Reset Style Manual Reset Style


Toggle	Push Button

Rocker

	Reset Type Reset Type

Manual

Automatic

	Breakthrough Current Breakthrough Current

	Frequency Frequency

50Hz

60Hz

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	NEMA Style NEMA Style

	5-15		5-20
	6-20		L5-20

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	UL File Number UL File Number

	Protection Type Protection Type

GFCI

Circuit Breaker

AFCI

	Receptacle Type Receptacle Type

	Duplex		Single

	Mount Type Mount Type

106 Products

Circuit Breakers

Square D Load-Center Circuit Breakers

Match these circuit breakers to Square D breaker boxes or panel boards of the same manufacturer series.

Siemens Load-Center Circuit Breakers

Use with Siemens EQ series breaker boxes.

Cutler-Hammer Load-Center Circuit Breakers

Install these circuit breakers into Cutler-Hammer CH series breaker boxes.

Space-Saver Panel-Mount Branch Circuit Breakers

Small enough to fit in tight spaces, these circuit breakers mount through panels and are UL 489-rated for branch circuit protection.

High-Temperature Panel-Mount Circuit Breakers

Unlike breakers that trip thermally, these breakers have a hydraulic-magnetic trip mechanism, so they aren’t affected by changes in temperature.

Panel-Mount Equipment Circuit Breakers

Mount these breakers, also known as supplemental protectors, through panels downstream from a branch circuit breaker to protect a single piece of equipment.

DIN-Rail Mount Equipment Circuit Breakers

Also known as supplemental protectors, these circuit breakers mount directly to DIN rail downstream from a branch circuit breaker to protect a single piece of equipment.

DIN-Rail Mount Branch Circuit Breakers

Mount these circuit breakers directly to DIN rail to protect equipment and wiring in an area of your facility from overloads and short circuits.

Plug-Base Circuit Breakers

Replace any Edison-base fuse with these resettable circuit breakers.

Blade-Style Circuit Breakers

Protect against overload and short circuits in low-voltage automotive and other electronic applications.

Cords

Extension Cord GFCI Converters

Hardwire one of these converters to an extension cord to keep personnel safe from electric shock.

GFCI Extension Cords

Keep personnel safe from electric shock with these cords.

GFCI Turn-Lock Extension Cords

Keep personnel safe from electric shock with these cords.

Outlet Strips

Often used in offices and workstations, these outlet strips power multiple devices from a single wall outlet.

GFCI Outlet Strips

Keep personnel safe from electric shock with ground fault protection.

Cabinet-Mount Outlet Strips

Install these extra-long strips onto the frame of an electrical cabinet.

Impact-Resistant Automatic-Wind Cord Reels

Made of impact-resistant plastic, these reels are more durable than other automatic-wind cord reels.

Harsh Environment Automatic-Wind Cord Reels

Intended for demanding applications, these reels include an oil- and water-resistant extension cord.

Controlled-Automatic-Wind Cord Reels

Controlled winding prevents the cord from whipping at the end, making winding safer and extending the life of the cord and reel.

Plugs, Sockets, and Receptacles

GFCI DIN-Rail Mount Straight-Blade Receptacles

Keep personnel safe from electric shock by adding ground fault protection to all outlets on the same circuit. These receptacles mount to DIN rail.

Weather-Resistant GFCI Straight-Blade Receptacles

Suitable for use outdoors, receptacles can be used in wet and damp environments. They keep personnel safe from electric shock by adding ground fault protection.

GFCI Straight-Blade Receptacles

Install these receptacles indoors. They keep personnel safe from electric shock by adding ground fault protection.

AFCI/GFCI Straight-Blade Receptacles

Minimize the risk of electric shock and electrical fires with a single receptacle.

GFCI Sure-Grip Straight-Blade Receptacles

Keep personnel safe from electric shock by adding ground fault protection. These receptacles have an extra-tight fit when mated with plugs to withstand high vibration. Also known as hospital grade receptacles.

Washdown Straight-Blade Connectors and Cords

When mated, connectors meet NEMA 6P, NEMA 12, and either IP67 or IP69K.

Washdown Turn-Lock Connectors and Cords

When mated, these connectors meet NEMA 6P for protection against washdowns and temporary submersion.

Surface-Mount GFCIs

Mount and hardwire one of these GFCIs to your equipment to provide ground fault protection.