Snap On Switches | McMaster-Carr

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Breakthrough Current @ Voltage

10,000 amp @ 120V AC

10,000 amp @ 240V AC

5,000 amp @ 48V DC

Number of Circuits Controlled

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60 Products

Choosing an Electrical Switch

Rotary

Rocker with Vertical Line/Circle

Rocker

Install these switches inline on a lamp cord.

Rotary Actuator Style
No. of Circuits Controlled	Switch Action	Industry Designation	Color	Message (Location)	Message Color	Switching Current @ Voltage	Wire Connection Type	Specifications Met		Each
1	Stays Switched (Maintained)	SPST-NO	Brown	__	__	3 A @ 125 V AC	Snap On	UL Listed, CSA Certified	00000000	00000
Rocker Actuator Style
1	Stays Switched (Maintained)	SPST-NO	Black	Vertical Line (Top), Circle (Bottom)	White	6 A @ 120 V AC	Snap On	UL Listed, C-UL Listed	0000000	00000
1	Stays Switched (Maintained)	SPST-NO	White	__	__	6 A @ 120 V AC	Snap On	UL Listed, C-UL Listed	0000000	00000

Square D Load-Center Circuit Breakers

QO Series, 1 Pole

QO Series, 2 Pole

QO Series, 3 Pole

Homeline Series, 1 Pole

Homeline
Series, 1
Tandem 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.

Circuit breakers with ground fault sensitivity will trip if they detect a current leak above 6mA. This minimizes the risk of electric shock to workers and equipment.

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

								Each		Package
Current, A	Voltage	Frequency, Hz	Breakthrough Current	Mounting Location	Wire Connection Type	Wd.	Specifications Met		Each	Pkg. Qty.		Pkg.
QO Series
1 Pole—Toggle Style
15	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	3/4"	UL 489, UL Listed	00000000	000000	10	00000000	0000000
20	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	3/4"	UL 489, UL Listed	00000000	00000	10	00000000	000000
30	120V AC/240V AC	50/60	10,000 A @ 120 V AC 10,000 A @ 240 V AC	Breaker Box	Snap On	3/4"	UL 489, UL Listed	0000000	00000	10	00000000	000000
40	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	3/4"	UL 489, UL Listed	00000000	00000	__	000000	00
2 Pole—Toggle Style
15	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	00000	5	00000000	000000
20	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	00000	5	00000000	000000
30	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	00000	5	00000000	000000
40	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	00000	5	00000000	000000
50	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	00000	5	00000000	000000
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	00000	5	00000000	000000
70	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	0000000	000000	__	000000	00
3 Pole—Toggle Style
15	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	2 1/4"	UL 489, UL Listed	00000000	000000	3	00000000	000000
20	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	2 1/4"	UL 489, UL Listed	00000000	000000	3	00000000	000000
30	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	2 1/4"	UL 489, UL Listed	00000000	000000	3	00000000	000000
40	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	2 1/4"	UL 489, UL Listed	00000000	000000	3	00000000	000000
QO Series with 6mA Ground Fault Sensitivity
1 Pole—Toggle Style
20	120V AC	50/60	10,000 A @ 120 V AC	Breaker Box	Snap On	3/4"	UL 489, UL Listed	00000000	000000	__	000000	00
30	120V AC	50/60	10,000 A @ 120 V AC	Breaker Box	Snap On	3/4"	UL 489, UL Listed	00000000	000000	__	000000	00
2 Pole—Toggle Style
20	120V AC/240V AC	50/60	10,000 A @ 120 V AC 10,000 A @ 240 V AC	Breaker Box	Snap On	1 1/2"	UL 489, UL Listed	00000000	000000	__	000000	00
30	120V AC/240V AC	50/60	10,000 A @ 120 V AC 10,000 A @ 240 V AC	Breaker Box	Snap On	1 1/2"	UL 489, UL Listed	00000000	000000	__	000000	00
Homeline Series
1 Pole—Toggle Style
15	120V AC/240V AC	50/60	10,000 A @ 120 V AC 10,000 A @ 240 V AC	Breaker Box	Snap On	1"	UL 489, UL Listed	00000000	00000	10	000000000	000000
20	120V AC/240V AC	50/60	10,000 A @ 120 V AC 10,000 A @ 240 V AC	Breaker Box	Snap On	1"	UL 489, UL Listed	00000000	00000	10	000000000	000000
30	120V AC/240V AC	50/60	10,000 A @ 120 V AC 10,000 A @ 240 V AC	Breaker Box	Snap On	1"	UL 489, UL Listed	00000000	00000	10	000000000	000000
40	120V AC/240V AC	50/60	10,000 A @ 120 V AC 10,000 A @ 240 V AC	Breaker Box	Snap On	1"	UL 489, UL Listed	00000000	00000	10	000000000	000000
50	120V AC/240V AC	50/60	10,000 A @ 120 V AC 10,000 A @ 240 V AC	Breaker Box	Snap On	1"	UL 489, UL Listed	000000000	00000	__	000000	00
1 Pole with Tandem Circuit—Toggle Style
20	120V AC/240V AC	50/60	10,000 A @ 120 V AC 10,000 A @ 240 V AC	Breaker Box	Snap On	1"	UL 489, UL Listed	00000000	00000	10	000000000	000000
2 Pole—Toggle Style
15	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	00000000	00000	__	000000	00
20	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	00000000	00000	5	000000000	000000
30	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	00000000	00000	5	000000000	000000
40	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	00000000	00000	5	000000000	000000
50	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	5	000000000	000000
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	5	000000000	000000
Homeline Series with 6mA Ground Fault Sensitivity
1 Pole—Toggle Style
20	120V AC	50/60	10,000 A @ 120 V AC	Breaker Box	Snap On	1"	UL 489, UL Listed	00000000	000000	__	000000	00
2 Pole—Toggle Style
20	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	000000	__	000000	00
30	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	000000	__	000000	00

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Choosing an Electrical Switch

Thumb Light Switches

Square D Load-Center Circuit Breakers