60A Breakers | McMaster-Carr

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	Current Current	Show

60A

	Current Current	Hide

	Number of Poles Number of Poles

	System of Measurement System of Measurement

Inch

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

DFARS Specialty Metals
COTS-Exempt

	Manual Reset Style Manual Reset Style


Toggle	Push Button

Lever	Push-Pull Button

	Reset Type Reset Type

Manual

	Specifications Met Specifications Met

CE Marked

IEC 60947-2

IEC 81346-2

	Wire Connection Type Wire Connection Type

Snap On

Screw-Clamp Terminals

Screw Terminals

Lug Terminals

	Breakthrough Current Breakthrough Current

	Circuit Breaker Type Circuit Breaker Type

Thermal

Magnetic

	Voltage Voltage

	Width Width

	Depth Depth

1.44"

1.72"

	Mounting Location Mounting Location

	Frequency Frequency

50Hz

60Hz

	UL File Number UL File Number

E84967

E364397

E67320

	Manufacturer Manufacturer

Square D

Siemens

Cutler-Hammer

	Manufacturer Series Manufacturer Series

Homeline

QOB

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

RoHS Compliant with
Exemptions

	Maximum Temperature Maximum Temperature

150° to 174° F

175° to 249° F

	Minimum Temperature Minimum Temperature

-50° F or less

-49° to -25° F

-24° to 0° F

	Mount Type Mount Type

Screw

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

REACH Compliant

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13 Products

Square D Load-Center Circuit Breakers

QO Series, 2 Pole

QOB Series, 3 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, so they protect downstream equipment and wiring from overloads and short circuits. Because they are thermal-magnetic, these breakers trip two different ways. They either trip when heat is generated by sustained low-level overload current or quickly when the magnetic 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.

For technical drawings and 3-D models, click on a part number.

QO Series
Current, A	Voltage	Frequency, Hz	Breakthrough Current	Mounting Location	Wire Connection Type	Wd.	Specifications Met		Each
2 Pole—Toggle Style
60	120V AC/240V AC/48V DC	50/60	10,000 A @ 120 V AC 10,000 A @ 240 V AC 5,000 A @ 48 V DC	Breaker Box	Snap On	1 1/2"	UL 489, UL Listed	00000000	000000
QOB Series
3 Pole—Toggle Style
60	120V AC/240V AC/48V DC	50/60	10,000 A @ 120 V AC 10,000 A @ 240 V AC 5,000 A @ 48 V DC	Panel Board	Screw-Clamp Terminals	2 1/4"	UL 489, UL Listed	00000000	000000
Homeline Series
2 Pole—Toggle Style
60	120V AC/240V AC	50/60	10,000 A @ 120 V AC 10,000 A @ 240 V AC	Breaker Box	Snap On	2"	UL 489, UL Listed	000000000	00000

Siemens Load-Center Circuit Breakers

2 Pole

Use with Siemens EQ series breaker boxes. These circuit breakers meet UL 489 requirements for branch circuit protection, so they protect downstream equipment and wiring from overloads and short circuits. Because they are thermal-magnetic, they trip two different ways. They either trip when heat is generated slowly by consistent low-level overload current or quickly when the magnetic 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.

2 Pole—Toggle Style
Current, A	Voltage	Frequency, Hz	Breakthrough Current	Wire Connection Type	Wd.	Specifications Met		Each
60	120V AC/240V AC	60	10,000 A @ 120 V AC 10,000 A @ 240 V AC	Screw-Clamp Terminals	2"	UL 489	0000000	000000

Cutler-Hammer Load-Center Circuit Breakers

2 Pole

Install these circuit breakers into Cutler-Hammer CH series breaker boxes. They meet UL 489 requirements for branch circuit protection, so they protect downstream equipment and wiring from overloads and short circuits. Because these circuit breakers are thermal-magnetic, they trip two different ways. They either trip when heat is generated slowly by consistent low-level overload current or quickly when the magnetic 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.

2 Pole—Toggle Style
Current, A	Voltage	Frequency, Hz	Breakthrough Current	Wire Connection Type	Wd.	Specifications Met		Each
60	120V AC/240V AC	60	10,000 A @ 120 V AC 10,000 A @ 240 V AC	Screw-Clamp Terminals	1 1/2"	UL 489	0000000	000000

High-Power Circuit Breakers

Protect an area of a facility that has high-powered equipment. These circuit breakers are also known as molded case circuit breakers. They meet UL 489 requirements for branch circuit protection. Because these breakers are thermal-magnetic, they trip two ways. They either trip when heat is generated slowly by consistent low-level overload current, or they trip quickly when the magnetic coil senses a high-current short circuit. A switch lets you adjust when these breakers magnetically trip, so you don't need to replace them as your application changes. These breakers have internal accessory slots to fit shunt trips, auxiliary contacts, and undervoltage trips, saving space in your setup.

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

Shunt trips receive a signal from equipment to trip your circuit breaker in situations other than overload or short circuit conditions. For example, use them with a smoke detector to shut off power to a system in the event of a fire. 30A to 250A breakers can only have one shunt trip or undervoltage trip installed. 400A to 600A breakers can accommodate one shunt trip and one undervoltage trip at the same time.

Auxiliary contacts send a signal to other equipment when the circuit trips. They can activate a warning light, initiate a shutdown, or start a backup power source. Multiple auxiliary contacts can be used within one circuit breaker and can be placed in any of the accessory slots.

Undervoltage trips protect equipment from operating with less than their intended voltage by tripping a circuit breaker when the supply voltage drops below a set level. 30A to 250A breakers can only have one shunt trip or undervoltage trip installed. 400A to 600A breakers can accommodate one shunt trip and one undervoltage trip at the same time.

Install handles on the front cover of an electrical cabinet to turn these breakers on, off, or reset them without having to open the cabinet. Yet, these handles won’t prevent you from opening the electrical cabinet normally. You can also lock the handles in the on or off position with a padlock (not included) to prevent unauthorized changes to the circuit breaker.

For technical drawings and 3-D models, click on a part number.

Circuit Breakers

Circuit Breaker

3 Pole—Toggle Style
Current, A	Voltage	Frequency, Hz	Breakthrough Current	Inrush Current Setting, A	Mounting Location	For DIN Rail Size, mm	Mount Type	Ht.	Wd.	Dp.	Temp. Range, °F	Specifications Met		Each
60	480V AC/600YV AC/600V DC	50/60	65,000 A @ 240 V AC 25,000 A @ 480 V AC 14,000 A @ 600 V AC 14,000 A @ 125 V DC 50,000 A @ 250 V DC 50,000 A @ 500 V DC 50,000 A @ 600 V DC	300, 360, 420, 480, 540, 600	DIN Rail	35	Screw On	5.5"	3"	3"	-10° to 155°	UL 489, UL Listed, CE Marked, IEC 60947-2, IEC 81346-2	0000000	0000000

Shunt Trips

Shunt Trip

Voltage	Current	Frequency, Hz	Wire Connection Type	Ht.	Wd.	Dp.	Temp. Range, °F	Specifications Met		Each
110-127V AC	7.4 A @ 110 V AC	50/60	Screw-Clamp Terminals	2.56"	0.85"	1.23"	-10° to 155°	UL 489, UL Listed, IEC 60947-2	0000000	0000000

Auxiliary Contacts

Auxiliary Contact

Voltage	Current, A	Frequency, Hz	Industry Designation	No. of Circuits Controlled	Switch Starting Position	Wire Connection Type	Ht.	Wd.	Dp.	Temp. Range, °F	Specifications Met		Each
24-300V AC/24-250V DC	6	50/60	DPST	2	1 Off (Normally Open) and 1 On (Normally Closed)	Screw-Clamp Terminals	2.57"	0.28"	1.36"	-10° to 155°	UL 489, UL Listed, IEC 60947-2	0000000	0000000

Undervoltage Trips

Undervoltage Trip

Voltage	Current	Frequency, Hz	Wire Connection Type	Ht.	Wd.	Dp.	Temp. Range, °F	Specifications Met		Each
120-127V AC	0.01 A @ 120 V AC	50/60	Screw-Clamp Terminals	2.56"	1.01"	1.13"	-10° to 155°	UL 489, UL Listed, IEC 60947-2	0000000	0000000

Handles

Handle

For Circuit Breaker Current, A	Ht.	Wd.	Projection	Mounting Fasteners Included	For Max. Padlock Shackle Dia.	Padlock Included	Temp. Range, °F	Environmental Rating	Specifications Met		Each
30, 60, 100, 125	2.95"	2.95"	2.16"	Yes	3/8"	No	-10° to 155°	IP65, NEMA 4X, NEMA 12	IEC 60947-2	0000000	0000000

Harsh-Environment Circuit Breakers

Built to resist vibration and corrosion in harsh environments, these circuit breakers protect against overload and short circuits in low-voltage automotive and other electronic applications. All are thermal, so they use the heat generated in overcurrent situations to trip the breaker.

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

Push-pull button and lever style breakers can be used as an on/off switch.

Place UL1077 rated breakers downstream from a branch circuit breaker to protect a single piece of equipment. They are also known as supplemental protectors.

For technical drawings and 3-D models, click on a part number.

Push-Pull Button Style

1 Pole
Current, A	Voltage	Breakthrough Current	For Panel Cutout Dia.	Dp. Behind Panel	Mount Type	Mounting Fasteners Included	Wire Connection Type	Temp. Range, °F	Specifications Met		Each
60	28V DC	6,000 A @ 28 V DC	0.49"	2.48"	Screw On	Yes	Screw Terminals	-65° to 165°	UL 1077, UL Recognized Component	0000000	000000

Lever Style

							Mounting Holes
Current, A	Voltage	Breakthrough Current	Ht.	Wd.	Dp.	Mount Type	No. of	Dia.	Mounting Fasteners Included	Wire Connection Type	Temp. Range, °F	Specifications Met		Each
1 Pole
60	48V DC	5,000 A @ 48 V DC	3.44"	2.32"	1.72"	Screw On	3	0.19"	No	Screw Terminals	-40° to 185°	CE Marked	00000000	000000

Push Button Style

							Mounting Holes
Current, A	Voltage	Breakthrough Current	Ht.	Wd.	Dp.	Mount Type	No. of	Dia.	Mounting Fasteners Included	Wire Connection Type	Temp. Range, °F	Specifications Met		Each
1 Pole
60	42V DC	3,000 A @ 42 V DC	2.89"	1.9"	1.44"	Screw On	2	0.25"	No	Screw Terminals	-25° to 180°	CE Marked	00000000	000000