Breaker Box Breakers | McMaster-Carr

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	Current Current

15A

20A

	Number of Poles Number of Poles

	Voltage Voltage

120V AC

240V AC

	Manufacturer Manufacturer

Square D

Siemens

Cutler-Hammer

	Manufacturer Series Manufacturer Series

Homeline

	Mounting Location Mounting Location	Show

Breaker Box

	Mounting Location Mounting Location	Hide

	System of Measurement System of Measurement

Inch

	Width Width

3/4"

1 1/2"

	Reset Type Reset Type

Manual

	Circuit Breaker Type Circuit Breaker Type

Thermal

Magnetic

	Breakthrough Current Breakthrough Current

10,000 A @ 120 V AC

10,000 A @ 240 V AC

	Wire Connection Type Wire Connection Type

	Screw-Clamp Terminals

	Frequency Frequency

60Hz

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

DFARS Specialty Metals
COTS-Exempt

	Specifications Met Specifications Met

UL 489

UL Listed

	Manual Reset Style Manual Reset Style

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9 Products

Square D Load-Center Circuit Breakers

Homeline
Series, 1
Tandem Pole

Homeline Series, 1 Pole

Homeline Series, 2 Pole

Match these circuit breakers to Square D breaker boxes or panel boards of the same manufacturer series. They meet UL 489 requirements for branch circuit protection. All are thermal/magnetic—breakers trip when heat is generated by sustained, low-level overload current, but will trip quickly when the magnetic field in the coil senses a high-current short circuit.

Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.

Homeline Series
Voltage	Frequency, Hz	Breakthrough Current	Mounting Location	Wire Connection Type	Wd.	Features	Specifications Met	Choose a Current, A		Each
1 Pole—Toggle Style
120V AC/240V AC	60	10,000 A @ 120 V AC 10,000 A @ 240 V AC	Breaker Box	Screw-Clamp Terminals	1"	Tandem Circuit, Time Delay Trip	UL Listed, UL 489	20	00000000	000000
120V AC/240V AC	60	10,000 A @ 120 V AC 10,000 A @ 240 V AC	Breaker Box	Screw-Clamp Terminals	1"	Time Delay Trip	UL 489	15, 20, 30	0000000	0000
2 Pole—Toggle Style
120V AC/240V AC	60	10,000 A @ 120 V AC 10,000 A @ 240 V AC	Breaker Box	Screw-Clamp Terminals	2"	Time Delay Trip	UL 489	20, 30, 40	0000000	00000

Siemens Load-Center Circuit Breakers

1 Pole

2 Pole

Use with Siemens EQ series breaker boxes. These circuit breakers meet UL 489 requirements for branch circuit protection. All are thermal/magnetic—breakers trip when heat is generated by sustained, low-level overload current, but will trip quickly when the magnetic field in the coil senses a high-current short circuit.

Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.

1 Pole—Toggle Style
Voltage	Frequency, Hz	Breakthrough Current	Wire Connection Type	Wd.	Features	Choose a Current, A		Each
120V AC/240V AC	60	10,000 A @ 120 V AC 10,000 A @ 240 V AC	Screw-Clamp Terminals	1"	Time Delay Trip	15, 20, 30	000000	00000
2 Pole—Toggle Style
120V AC/240V AC	60	10,000 A @ 120 V AC 10,000 A @ 240 V AC	Screw-Clamp Terminals	2"	Time Delay Trip	15, 20, 30, 40, 50, 60	000000	00000
120V AC/240V AC	60	10,000 A @ 120 V AC 10,000 A @ 240 V AC	Screw-Clamp Terminals	2"	Time Delay Trip	70	000000	00000

Cutler-Hammer Load-Center Circuit Breakers

1 Pole

2 Pole

Install these circuit breakers into Cutler-Hammer CH series breaker boxes. They meet UL 489 requirements for branch circuit protection. All are thermal/magnetic—breakers trip when heat is generated by sustained, low-level overload current, but will trip quickly when the magnetic field in the coil senses a high-current short circuit.

Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.

1 Pole—Toggle Style
Voltage	Frequency, Hz	Breakthrough Current	Wire Connection Type	Wd.	Features	Choose a Current, A		Each
120V AC/240V AC	60	10,000 A @ 120 V AC 10,000 A @ 240 V AC	Screw-Clamp Terminals	3/4"	Time Delay Trip	15, 20, 30	000000	000000
2 Pole—Toggle Style
120V AC/240V AC	60	10,000 A @ 120 V AC 10,000 A @ 240 V AC	Screw-Clamp Terminals	1 1/2"	Time Delay Trip	15, 20, 30, 40, 50, 60	000000	00000
120V AC/240V AC	60	10,000 A @ 120 V AC 10,000 A @ 240 V AC	Screw-Clamp Terminals	1 1/2"	Time Delay Trip	70	000000	00000