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UM Series Circuit Breakers

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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	Voltage Rating DC	Number of Poles	Actuator	Minimum Operating Temperature	Maximum Operating Temperature	Illuminated
Circuit Breakers 2A D Characteristic UL 508 1 POLE 1D2UM Altech 1: ¥3,951.5 1In Stock	Mfr. Part # 1D2UM Mouser Part # 845-1D2UM	Altech	Circuit Breakers 2A D Characteristic UL 508 1 POLE Learn More about Altech um v ea circuit breakers	Datasheet	1In Stock	¥3,951.5 ¥3,908.3 ¥3,650.9 ¥3,518 View ¥3,418.3 ¥3,341.9 Quote	Min.: 1 Mult.: 1	UM	Circuit Breakers	D-Trip	2 A	277 VAC	42 VDC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 30A D Characteristic UL 508 1 POLE 1D30UM Altech 1: ¥3,951.5 4In Stock	Mfr. Part # 1D30UM Mouser Part # 845-1D30UM	Altech	Circuit Breakers 30A D Characteristic UL 508 1 POLE Learn More about Altech um v ea circuit breakers	Datasheet	4In Stock	¥3,951.5 ¥3,755.5 ¥3,582.8 ¥3,420 View ¥3,336.9 Quote	Min.: 1 Mult.: 1	UM	Circuit Breakers	D-Trip	30 A	277 VAC	24 VDC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 5A D Characteristic UL 508 1 POLE 1D5UM Altech 1: ¥5,670.7 1In Stock 33Expected 11/3/2026	Mfr. Part # 1D5UM Mouser Part # 845-1D5UM	Altech	Circuit Breakers 5A D Characteristic UL 508 1 POLE Learn More about Altech um v ea circuit breakers	Datasheet	1In Stock 33Expected 11/3/2026	¥5,670.7 ¥3,951.5 ¥3,939.9 ¥3,669.1 View ¥3,528 ¥3,423.3 ¥3,343.6 Quote	Min.: 1 Mult.: 1	UM	Circuit Breakers	D-Trip	5 A	277 VAC	42 VDC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 10A CRT BRKR ECHAR 277VAC UL508 1E10UM Altech 1: ¥3,951.5 10In Stock	Mfr. Part # 1E10UM Mouser Part # 845-1E10UM	Altech	Circuit Breakers 10A CRT BRKR ECHAR 277VAC UL508 Learn More about Altech um v ea circuit breakers	Datasheet	10In Stock	¥3,951.5 ¥3,840.2 ¥3,694.1 ¥3,579.5 View ¥3,494.7 Quote	Min.: 1 Mult.: 1	UM			10 A	277 VAC	42 VDC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 15A CRT BKR ECHAR 277VAC UL508 1E15UM Altech 1: ¥5,670.7 5In Stock	Mfr. Part # 1E15UM Mouser Part # 845-1E15UM	Altech	Circuit Breakers 15A CRT BKR ECHAR 277VAC UL508 Learn More about Altech um v ea circuit breakers	Datasheet	5In Stock	¥5,670.7 ¥4,740.5 ¥3,951.5 ¥3,817 View ¥3,675.8 ¥3,539.6 ¥3,456.5 Quote	Min.: 1 Mult.: 1	UM	Circuit Breakers	E-Trip	15 A	277 VAC	42 VDC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 4A CRT BRKR ECHAR 277VAC UL508 1E4UM Altech 1: ¥5,670.7 6In Stock	Mfr. Part # 1E4UM Mouser Part # 845-1E4UM	Altech	Circuit Breakers 4A CRT BRKR ECHAR 277VAC UL508 Learn More about Altech um v ea circuit breakers	Datasheet	6In Stock	¥5,670.7 ¥4,740.5 ¥3,951.5 ¥3,817 View ¥3,650.9 ¥3,539.6 ¥3,456.5 Quote	Min.: 1 Mult.: 1	UM	Circuit Breakers	E-Trip	4 A	277 VAC	42 VDC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 50A CRT BKR ECHAR 277VAC UL508 1E50UM Altech 1: ¥6,381.6 11In Stock	Mfr. Part # 1E50UM Mouser Part # 845-1E50UM	Altech	Circuit Breakers 50A CRT BKR ECHAR 277VAC UL508 Learn More about Altech um v ea circuit breakers	Datasheet	11In Stock	¥6,381.6 ¥4,493 ¥4,343.5 ¥4,199 View ¥4,069.5 ¥3,971.5 Quote	Min.: 1 Mult.: 1	UM	Circuit Breakers	E-Trip	50 A	277 VAC	24 VDC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 10A G Characteristic UL 508 1 POLE 1G10UM Altech 1: ¥4,564.4 21In Stock	Mfr. Part # 1G10UM Mouser Part # 845-1G10UM	Altech	Circuit Breakers 10A G Characteristic UL 508 1 POLE Learn More about Altech um v ea circuit breakers	Datasheet	21In Stock	¥4,564.4 ¥4,476.4 ¥4,120.9 ¥3,913.3 View ¥3,770.5 ¥3,714 ¥3,690.7 Quote	Min.: 1 Mult.: 1	UM			10 A	277 VAC	42 VDC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 20A G Characteristic UL 508 1 POLE 1G20UM Altech 1: ¥6,085.9 2In Stock 14On Order	Mfr. Part # 1G20UM Mouser Part # 845-1G20UM	Altech	Circuit Breakers 20A G Characteristic UL 508 1 POLE Learn More about Altech um v ea circuit breakers	Datasheet	2In Stock 14On Order On Order Ship Dates Mfr. #: 1G20UM Stock: 2 Can Ship Immediately On Order: 6 Expected 1/29/2027 8 Expected 3/5/2027 Factory Lead-Time: 18 Weeks	¥6,085.9 ¥4,307 ¥3,986.4 ¥3,650.9 View ¥3,569.5 ¥3,466.5 ¥3,385.1 Quote	Min.: 1 Mult.: 1	UM	Circuit Breakers	G-Trip	20 A	277 VAC	42 VDC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 25A G Characteristic UL 508 1 POLE 1G25UM Altech 1: ¥6,085.9 1In Stock	Mfr. Part # 1G25UM Mouser Part # 845-1G25UM	Altech	Circuit Breakers 25A G Characteristic UL 508 1 POLE Learn More about Altech um v ea circuit breakers	Datasheet	1In Stock	¥6,085.9 ¥4,253.8 ¥3,835.2 ¥3,463.2 View ¥3,444.9 ¥3,340.3 ¥3,257.2 Quote	Min.: 1 Mult.: 1	UM	Circuit Breakers	G-Trip	25 A	277 VAC	42 VDC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 3.5A MCB GCHAR 1pl 277VAC UL508 1G3.5UM Altech 1: ¥5,670.7 3In Stock	Mfr. Part # 1G3.5UM Mouser Part # 845-1G3.5UM	Altech	Circuit Breakers 3.5A MCB GCHAR 1pl 277VAC UL508 Learn More about Altech um v ea circuit breakers	Datasheet	3In Stock	¥5,670.7 ¥3,951.5 ¥3,817 ¥3,650.9 View ¥3,539.6 ¥3,456.5 Quote	Min.: 1 Mult.: 1	UM	Circuit Breakers	G-Trip	3.5 A	277 VAC	42 VDC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 30A G Characteristic UL 508 1 POLE 1G30UM Altech 1: ¥5,670.7 1In Stock	Mfr. Part # 1G30UM Mouser Part # 845-1G30UM	Altech	Circuit Breakers 30A G Characteristic UL 508 1 POLE Learn More about Altech um v ea circuit breakers	Datasheet	1In Stock	¥5,670.7 ¥3,951.5 ¥3,755.5 ¥3,582.8 View ¥3,420 ¥3,336.9 Quote	Min.: 1 Mult.: 1	UM	Circuit Breakers	G-Trip	30 A	277 VAC	24 VDC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 5A G Characteristic UL 508 1 POLE 1G5UM Altech 1: ¥3,951.5 21In Stock	Mfr. Part # 1G5UM Mouser Part # 845-1G5UM	Altech	Circuit Breakers 5A G Characteristic UL 508 1 POLE Learn More about Altech um v ea circuit breakers	Datasheet	21In Stock	¥3,951.5 ¥3,898.4 ¥3,707.4 ¥3,572.8 View ¥3,478.1 Quote	Min.: 1 Mult.: 1	UM			5 A	277 VAC	42 VDC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 16A Z Characteristic UL 508 1 POLE 1Z16UM Altech 1: ¥9,775 2In Stock	Mfr. Part # 1Z16UM Mouser Part # 845-1Z16UM	Altech	Circuit Breakers 16A Z Characteristic UL 508 1 POLE Learn More about Altech um v ea circuit breakers	Datasheet	2In Stock	¥9,775 ¥7,075.9 ¥6,590.8 ¥6,388.2 View ¥6,208.8 Quote	Min.: 1 Mult.: 1	UM			16 A	277 VAC	42 VDC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 10A MCB CCHAR 1P+N 277VAC UL508 2C10UM Altech 1: ¥7,906.4 1In Stock	Mfr. Part # 2C10UM Mouser Part # 845-2C10UM	Altech	Circuit Breakers 10A MCB CCHAR 1P+N 277VAC UL508 Learn More about Altech um v ea circuit breakers	Datasheet	1In Stock	¥7,906.4 ¥7,466.2 ¥7,218.7 ¥6,982.8 View Quote	Min.: 1 Mult.: 1	UM	Circuit Breakers	C-Trip	10 A	277 VAC	80 VDC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 15A CRT BRKR CCHAR 277VAC UL508 2C15UM Altech 1: ¥10,859.6 7In Stock	Mfr. Part # 2C15UM Mouser Part # 845-2C15UM	Altech	Circuit Breakers 15A CRT BRKR CCHAR 277VAC UL508 Learn More about Altech um v ea circuit breakers	Datasheet	7In Stock	¥10,859.6 ¥9,564 ¥8,677.1 ¥7,575.8 View ¥7,218.7 ¥6,981.2 Quote	Min.: 1 Mult.: 1	UM	Circuit Breakers	C-Trip	15 A	277 VAC	80 VDC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 1A MCB CCHAR 1P+N 277VAC UL508 2C1UM Altech 1: ¥11,389.5 3In Stock	Mfr. Part # 2C1UM Mouser Part # 845-2C1UM	Altech	Circuit Breakers 1A MCB CCHAR 1P+N 277VAC UL508 Learn More about Altech um v ea circuit breakers	Datasheet	3In Stock	¥11,389.5 ¥7,866.5 ¥7,359.9 ¥6,913.1 View ¥6,693.8 ¥6,512.8 Quote	Min.: 1 Mult.: 1	UM			1 A	277 VAC	80 VDC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 25A MCB CCHAR 1P+N 277VAC UL508 2C25UM Altech 1: ¥11,389.5 4In Stock	Mfr. Part # 2C25UM Mouser Part # 845-2C25UM	Altech	Circuit Breakers 25A MCB CCHAR 1P+N 277VAC UL508 Learn More about Altech um v ea circuit breakers	Datasheet	4In Stock	¥11,389.5 ¥8,517.6 ¥7,994.4 ¥7,393.1 View ¥7,167.2 ¥6,967.9 Quote	Min.: 1 Mult.: 1	UM			25 A	277 VAC	80 VDC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 30A CRT BRKR CCHAR 277VAC UL508 2C30UM Altech 1: ¥7,906.4 11In Stock	Mfr. Part # 2C30UM Mouser Part # 845-2C30UM	Altech	Circuit Breakers 30A CRT BRKR CCHAR 277VAC UL508 Learn More about Altech um v ea circuit breakers	Datasheet	11In Stock	¥7,906.4 ¥7,552.6 ¥7,315 ¥7,107.4 View Quote	Min.: 1 Mult.: 1	UM			30 A	277 VAC	60 VDC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 3A MCB CCHAR 1P+N 277VAC UL508 2C3UM Altech 1: ¥11,389.5 10In Stock	Mfr. Part # 2C3UM Mouser Part # 845-2C3UM	Altech	Circuit Breakers 3A MCB CCHAR 1P+N 277VAC UL508 Learn More about Altech um v ea circuit breakers	Datasheet	10In Stock	¥11,389.5 ¥9,449.4 ¥8,715.3 ¥7,177.2 View ¥6,893.2 ¥6,639 Quote	Min.: 1 Mult.: 1	UM			3 A	277 VAC	80 VDC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 16A MCB DCHAR 1P+N 277VAC UL508 2D16UM Altech 1: ¥7,906.4 15In Stock	Mfr. Part # 2D16UM Mouser Part # 845-2D16UM	Altech	Circuit Breakers 16A MCB DCHAR 1P+N 277VAC UL508 Learn More about Altech um v ea circuit breakers	Datasheet	15In Stock	¥7,906.4 ¥7,521 ¥7,243.6 ¥7,054.3 Quote Quote	Min.: 1 Mult.: 1	UM			16 A	277 VAC	80 VDC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 2A MCB DCHAR 1P+N 277VAC UL508 2D2UM Altech 1: ¥7,906.4 5In Stock	Mfr. Part # 2D2UM Mouser Part # 845-2D2UM	Altech	Circuit Breakers 2A MCB DCHAR 1P+N 277VAC UL508 Learn More about Altech um v ea circuit breakers	Datasheet	5In Stock	¥7,906.4 ¥7,632.3 ¥7,120.7 ¥6,916.4 View ¥6,723.7 Quote	Min.: 1 Mult.: 1	UM			2 A	277 VAC	80 VDC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 30A MCB DCHAR 1P+N 277VAC UL508 2D30UM Altech 1: ¥7,906.4 9In Stock	Mfr. Part # 2D30UM Mouser Part # 845-2D30UM	Altech	Circuit Breakers 30A MCB DCHAR 1P+N 277VAC UL508 Learn More about Altech um v ea circuit breakers	Datasheet	9In Stock	¥7,906.4 ¥7,735.3 ¥7,408.1 ¥7,218.7 View Quote	Min.: 1 Mult.: 1	UM			30 A	277 VAC	60 VDC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 10A MCB GCHAR 1P+N 277VAC UL508 2G10UM Altech 1: ¥10,454.3 2In Stock	Mfr. Part # 2G10UM Mouser Part # 845-2G10UM	Altech	Circuit Breakers 10A MCB GCHAR 1P+N 277VAC UL508 Learn More about Altech um v ea circuit breakers	Datasheet	2In Stock	¥10,454.3 ¥7,906.4 ¥7,833.3 ¥7,695.4 View Quote	Min.: 1 Mult.: 1	UM	Circuit Breakers	G-Trip	10 A	277 VAC	80 VDC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 16A MCB GCHAR 1P+N 277VAC UL508 2G16UM Altech 1: ¥7,906.4 23In Stock	Mfr. Part # 2G16UM Mouser Part # 845-2G16UM	Altech	Circuit Breakers 16A MCB GCHAR 1P+N 277VAC UL508 Learn More about Altech um v ea circuit breakers	Datasheet	23In Stock	¥7,906.4 ¥7,888.1 ¥7,574.2 ¥7,521 View ¥7,243.6 ¥6,778.5 Quote	Min.: 1 Mult.: 1	UM			16 A	277 VAC	80 VDC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated

300 mA
500 mA
750 mA
800 mA
1 A
1.6 A
2 A
2.5 A
3 A
3.5 A
4 A
5 A
6 A
8 A
10 A
12 A
12.5 A
13 A
15 A
16 A