Circuit Breakers – Mouser Japan

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UL (AC) & DL (DC) Circuit Breakers

Altech UL (AC) and DL (DC) Circuit Breakers are available in both AC and DC models and offer 10kA short-circuit interrupting capacity. These thermal magnetic modules feature a 17.5mm width, a miniature size, and DIN-rail mounting. The series has a 0.3 to 63A current range and 6000 switching cycles of electrical life. Applications for Altech UL (AC) and DL (DC) Circuit Breakers include lighting, wiring protection, appliances, transformers, and telecommunication.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) Filter the results in the table by unit price based on your quantity.	Qty.	Series	Product	Type	Current Rating	Voltage Rating AC	Number of Poles	Actuator	Minimum Operating Temperature	Maximum Operating Temperature	Illuminated
Circuit Breakers 1.6A, C CHAR, 1POLE 277VAC, UL489 1C1.6UL Altech 1: ¥7,795.1 5In Stock	Mfr. Part # 1C1.6UL Mouser Part # 845-1C1.6UL	Altech	Circuit Breakers 1.6A, C CHAR, 1POLE 277VAC, UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	5In Stock	¥7,795.1 ¥6,682.2 ¥5,471.3 ¥5,112.6 View ¥4,974.7 ¥4,798.6 Quote	Min.: 1 Mult.: 1	UL	Circuit Breakers	C-Trip	1.6 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 15A, C CHAR, 1POLE 277VAC, UL489 1C15UL Altech 1: ¥5,569.3 65In Stock	Mfr. Part # 1C15UL Mouser Part # 845-1C15UL	Altech	Circuit Breakers 15A, C CHAR, 1POLE 277VAC, UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	65In Stock	¥5,569.3 ¥5,559.4 ¥5,526.1 ¥5,313.5 View ¥5,169 ¥5,051.1 Quote	Min.: 1 Mult.: 1	UL	Circuit Breakers	C-Trip	15 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 25A, D CHAR, 1POLE 277VAC, UL489 1D25UL Altech 1: ¥8,210.3 5In Stock	Mfr. Part # 1D25UL Mouser Part # 845-1D25UL	Altech	Circuit Breakers 25A, D CHAR, 1POLE 277VAC, UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	5In Stock	¥8,210.3 ¥6,810.1 ¥5,860 ¥5,419.8 View ¥5,272 ¥5,112.6 Quote	Min.: 1 Mult.: 1	UL			25 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 1C03UL, 0.3A, CIRCUIT BREAKER 1C03UL Altech 1: ¥7,795.1 4In Stock	Mfr. Part # 1C03UL Mouser Part # 845-1C03UL	Altech	Circuit Breakers 1C03UL, 0.3A, CIRCUIT BREAKER Learn More about Altech ulac dldc circuit breakers	Datasheet	4In Stock	¥7,795.1 ¥6,682.2 ¥5,569.3 ¥5,546.1 View ¥5,373.3 Quote	Min.: 1 Mult.: 1	UL			300 mA	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 10A, C CHAR, 1POLE 277VAC, UL489 1C10UL Altech 1: ¥5,569.3 17In Stock 47Expected 3/1/2027	Mfr. Part # 1C10UL Mouser Part # 845-1C10UL	Altech	Circuit Breakers 10A, C CHAR, 1POLE 277VAC, UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	17In Stock 47Expected 3/1/2027	¥5,569.3 ¥5,478 ¥5,067.7 ¥4,888.3 View Quote	Min.: 1 Mult.: 1	UL			10 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 16A, C CHAR, 1POLE 277VAC, UL489 1C16UL Altech 1: ¥8,210.3 3In Stock	Mfr. Part # 1C16UL Mouser Part # 845-1C16UL	Altech	Circuit Breakers 16A, C CHAR, 1POLE 277VAC, UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	3In Stock	¥8,210.3 ¥6,248.7 ¥5,800.2 ¥5,388.3 View ¥5,243.8 ¥5,091 Quote	Min.: 1 Mult.: 1	UL			16 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 20A, C CHAR, 1POLE 277VAC, UL489 1C20UL Altech 1: ¥5,569.3 12In Stock	Mfr. Part # 1C20UL Mouser Part # 845-1C20UL	Altech	Circuit Breakers 20A, C CHAR, 1POLE 277VAC, UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	12In Stock	¥5,569.3 ¥5,567.7 ¥5,544.4 ¥5,137.5 View ¥5,021.2 ¥4,986.3 Quote	Min.: 1 Mult.: 1	UL			20 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 25A, C CHAR, 1POLE 277VAC, UL489 1C25UL Altech 1: ¥7,494.4 7In Stock	Mfr. Part # 1C25UL Mouser Part # 845-1C25UL	Altech	Circuit Breakers 25A, C CHAR, 1POLE 277VAC, UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	7In Stock	¥7,494.4 ¥6,597.5 ¥5,569.3 ¥5,287 View ¥5,134.2 ¥4,996.3 Quote	Min.: 1 Mult.: 1	UL			25 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 32A, C CHAR, 1POLE 277VAC, UL489 1C32UL Altech 1: ¥7,795.1 4In Stock	Mfr. Part # 1C32UL Mouser Part # 845-1C32UL	Altech	Circuit Breakers 32A, C CHAR, 1POLE 277VAC, UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	4In Stock	¥7,795.1 ¥5,569.3 ¥5,305.2 ¥5,139.1 View ¥4,986.3 Quote	Min.: 1 Mult.: 1	UL			32 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 4A, C CHAR, 1POLE 277VAC, UL489 1C4UL Altech 1: ¥5,569.3 13In Stock	Mfr. Part # 1C4UL Mouser Part # 845-1C4UL	Altech	Circuit Breakers 4A, C CHAR, 1POLE 277VAC, UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	13In Stock	¥5,569.3 ¥5,481.3 ¥5,321.8 ¥5,160.7 View Quote	Min.: 1 Mult.: 1	UL	Circuit Breakers	C-Trip	4 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 10A, D CHAR, 1POLE 277VAC, UL489 1D10UL Altech 1: ¥5,454.7 6In Stock 21Expected 1/11/2027	Mfr. Part # 1D10UL Mouser Part # 845-1D10UL	Altech	Circuit Breakers 10A, D CHAR, 1POLE 277VAC, UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	6In Stock 21Expected 1/11/2027	¥5,454.7 ¥5,436.5 ¥4,881.7 ¥4,828.5 View ¥4,790.3 Quote	Min.: 1 Mult.: 1	UL	Circuit Breakers	D-Trip	10 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 15A, D CHAR, 1POLE 277VAC, UL489 1D15UL Altech 1: ¥5,569.3 23In Stock 22Expected 1/29/2027	Mfr. Part # 1D15UL Mouser Part # 845-1D15UL	Altech	Circuit Breakers 15A, D CHAR, 1POLE 277VAC, UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	23In Stock 22Expected 1/29/2027	¥5,569.3 ¥5,567.7 ¥5,517.8 ¥5,320.2 View ¥5,167.4 Quote	Min.: 1 Mult.: 1	UL	Circuit Breakers	D-Trip	15 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 20A, D CHAR, 1POLE 277VAC, UL489 1D20UL Altech 1: ¥7,595.8 4In Stock	Mfr. Part # 1D20UL Mouser Part # 845-1D20UL	Altech	Circuit Breakers 20A, D CHAR, 1POLE 277VAC, UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	4In Stock	¥7,595.8 ¥6,524.4 ¥5,786.9 ¥5,340.1 View ¥5,049.4 ¥4,948.1	Min.: 1 Mult.: 1	UL			20 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 2A, D CHAR, 1POLE 277VAC, UL489 1D2UL Altech 1: ¥6,776.9 5In Stock	Mfr. Part # 1D2UL Mouser Part # 845-1D2UL	Altech	Circuit Breakers 2A, D CHAR, 1POLE 277VAC, UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	5In Stock	¥6,776.9 ¥6,074.3 ¥5,478 ¥5,197.3 View ¥5,067.7 ¥4,908.3 Quote	Min.: 1 Mult.: 1	UL			2 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 63A, D CHAR, 1POLE 240VAC, UL489 1D63UL Altech 1: ¥5,929.8 5In Stock	Mfr. Part # 1D63UL Mouser Part # 845-1D63UL	Altech	Circuit Breakers 63A, D CHAR, 1POLE 240VAC, UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	5In Stock	¥5,929.8 ¥5,899.9 ¥5,747.1 ¥5,592.6 View Quote	Min.: 1 Mult.: 1	UL			63 A	240 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 12A, C CHAR, 2POLE 480Y/277VAC,UL489 2C12UL Altech 1: ¥13,822.8 4In Stock 8Expected 2/2/2027	Mfr. Part # 2C12UL Mouser Part # 845-2C12UL	Altech	Circuit Breakers 12A, C CHAR, 2POLE 480Y/277VAC,UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	4In Stock 8Expected 2/2/2027	¥13,822.8 ¥12,238.2 ¥11,137 ¥10,610.5 View ¥10,529.1 Quote	Min.: 1 Mult.: 1	UL	Circuit Breakers	C-Trip	12 A	277 VAC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 20A, C CHAR, 2POLE 480Y/277VAC,UL489 2C20UL Altech 1: ¥13,364.4 17In Stock	Mfr. Part # 2C20UL Mouser Part # 845-2C20UL	Altech	Circuit Breakers 20A, C CHAR, 2POLE 480Y/277VAC,UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	17In Stock	¥13,364.4 ¥11,995.7 ¥11,137 ¥9,863 View ¥9,635.5 Quote	Min.: 1 Mult.: 1	UL			20 A	277 VAC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 32A, C CHAR, 2POLE 480Y/277VAC,UL489 2C32UL Altech 1: ¥15,997.1 2In Stock	Mfr. Part # 2C32UL Mouser Part # 845-2C32UL	Altech	Circuit Breakers 32A, C CHAR, 2POLE 480Y/277VAC,UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	2In Stock	¥15,997.1 ¥12,869.4 ¥11,137 ¥10,726.7 View ¥10,474.3 Quote	Min.: 1 Mult.: 1	UL			32 A	277 VAC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 3A, C CHAR, 2POLE 480Y/277VAC,UL489 2C3UL Altech 1: ¥14,723.1 2In Stock 5Expected 1/18/2027	Mfr. Part # 2C3UL Mouser Part # 845-2C3UL	Altech	Circuit Breakers 3A, C CHAR, 2POLE 480Y/277VAC,UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	2In Stock 5Expected 1/18/2027	¥14,723.1 ¥11,137 ¥11,135.3 ¥10,843 View Quote	Min.: 1 Mult.: 1	UL			3 A	277 VAC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 4A, C CHAR, 2POLE 480Y/277VAC,UL489 2C4UL Altech 1: ¥15,341 15In Stock	Mfr. Part # 2C4UL Mouser Part # 845-2C4UL	Altech	Circuit Breakers 4A, C CHAR, 2POLE 480Y/277VAC,UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	15In Stock	¥15,341 ¥13,837.8 ¥12,158.5 ¥10,701.8 View ¥10,402.8 Quote	Min.: 1 Mult.: 1	UL			4 A	277 VAC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 5A, C CHAR, 2POLE 480Y/277VAC,UL489 2C5UL Altech 1: ¥11,137 4In Stock	Mfr. Part # 2C5UL Mouser Part # 845-2C5UL	Altech	Circuit Breakers 5A, C CHAR, 2POLE 480Y/277VAC,UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	4In Stock	¥11,137 ¥10,708.5 ¥10,411.1 ¥9,721.8 View ¥9,231.8 Quote	Min.: 1 Mult.: 1	UL			5 A	277 VAC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 0.3A, D CHAR, 2POLE 480Y/277VAC,UL489 2D03UL Altech 1: ¥14,925.7 6In Stock	Mfr. Part # 2D03UL Mouser Part # 845-2D03UL	Altech	Circuit Breakers 0.3A, D CHAR, 2POLE 480Y/277VAC,UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	6In Stock	¥14,925.7 ¥12,832.9 ¥11,065.6 ¥10,372.9 View ¥10,087.3 Quote	Min.: 1 Mult.: 1	UL			300 mA	277 VAC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 0.5A, D CHAR, 2POLE 480Y/277VAC,UL489 2D05UL Altech 1: ¥15,065.3 5In Stock	Mfr. Part # 2D05UL Mouser Part # 845-2D05UL	Altech	Circuit Breakers 0.5A, D CHAR, 2POLE 480Y/277VAC,UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	5In Stock	¥15,065.3 ¥12,582.1 ¥11,137 ¥11,135.3 View ¥10,833 Quote	Min.: 1 Mult.: 1	UL			500 mA	277 VAC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 20A, D CHAR, 2POLE 480Y/277VAC,UL489 2D20UL Altech 1: ¥13,623.5 9In Stock	Mfr. Part # 2D20UL Mouser Part # 845-2D20UL	Altech	Circuit Breakers 20A, D CHAR, 2POLE 480Y/277VAC,UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	9In Stock	¥13,623.5 ¥12,150.2 ¥11,137 ¥10,612.1 View ¥10,361.3 Quote	Min.: 1 Mult.: 1	UL	Circuit Breakers	D-Trip	20 A	277 VAC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 8A, D CHAR, 2POLE 480Y/277VAC,UL489 2D8UL Altech 1: ¥11,137 17In Stock	Mfr. Part # 2D8UL Mouser Part # 845-2D8UL	Altech	Circuit Breakers 8A, D CHAR, 2POLE 480Y/277VAC,UL489 Learn More about Altech ulac dldc circuit breakers	Datasheet	17In Stock	¥11,137 ¥10,578.9 ¥10,304.8 View Quote	Min.: 1 Mult.: 1	UL			8 A	277 VAC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated

UL (AC) & DL (DC) Circuit Breakers

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