Circuit Breakers – Mouser Taiwan

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UR Circuit Breakers

Altech UR Circuit Breakers are UL 1077-recognized supplementary protectors with B-, C-, and D-trip curves. These DIN-rail-mounted modules are available in 1-, 2-, and 3-pole variants as well as an add-on neutral pole option. Altech UR Circuit Breakers feature a 17.5mm width per pole and 10kA short circuit withstand capacity. Typical applications include sensitive electronics, power supplies, and appliance circuits.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (TWD) 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 6A,MCB B CHAR 1 PL, 277VAC, UL1077 1B6UR Altech 1: NT$912.74 1In Stock	Mfr. Part # 1B6UR Mouser Part # 845-1B6UR	Altech	Circuit Breakers 6A,MCB B CHAR 1 PL, 277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	1In Stock	NT$912.74 NT$639.92 NT$621.28 NT$590.81 View NT$571.81 NT$558.18 Quote	Min.: 1 Mult.: 1	UR			6 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 6A,MCB D CHAR 1 PL, 277VAC, UL1077 1D6UR Altech 1: NT$1,002.37 1In Stock	Mfr. Part # 1D6UR Mouser Part # 845-1D6UR	Altech	Circuit Breakers 6A,MCB D CHAR 1 PL, 277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	1In Stock	NT$1,002.37 NT$734.21 NT$670.04 NT$613.04 View NT$589.37 NT$571.09 NT$558.18 Quote	Min.: 1 Mult.: 1	UR			6 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 20A,MCB B CHAR 3PL 480Y/277VAC, UL1077 3B20UR Altech 1: NT$2,626.73 2In Stock	Mfr. Part # 3B20UR Mouser Part # 845-3B20UR	Altech	Circuit Breakers 20A,MCB B CHAR 3PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	2In Stock	NT$2,626.73 NT$1,919.77 NT$1,906.14 NT$1,775.65 View NT$1,720.80 NT$1,662.72 Quote	Min.: 1 Mult.: 1	UR	Circuit Breakers	B-Trip	20 A	277 VAC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 2C60UR, 60A, MCB, C CHAR 2C60UR Altech 1: NT$1,999.00 1In Stock 1Expected 12/11/2026	Mfr. Part # 2C60UR Mouser Part # 845-2C60UR	Altech	Circuit Breakers 2C60UR, 60A, MCB, C CHAR Learn More about Altech ur circuit breakers	Datasheet	1In Stock 1Expected 12/11/2026	NT$1,999.00 NT$1,366.96 NT$1,277.69 NT$1,164.41 View NT$1,121.03 NT$1,075.50 Quote	Min.: 1 Mult.: 1	UR			60 A	277 VAC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 0.5A, MCB B CHAR 1 PL, 277VAC, UL1077 1B05UR Altech 1: NT$912.74 6In Stock	Mfr. Part # 1B05UR Mouser Part # 845-1B05UR	Altech	Circuit Breakers 0.5A, MCB B CHAR 1 PL, 277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	6In Stock	NT$912.74 NT$767.91 NT$639.92 NT$613.39 View NT$581.85 NT$552.09 NT$538.83 Quote	Min.: 1 Mult.: 1	UR	Circuit Breakers	B-Trip	500 mA	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 15A,MCB B CHAR 1 PL, 277VAC, UL1077 1B15UR Altech 1: NT$1,002.37 6In Stock	Mfr. Part # 1B15UR Mouser Part # 845-1B15UR	Altech	Circuit Breakers 15A,MCB B CHAR 1 PL, 277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	6In Stock	NT$1,002.37 NT$831.72 NT$761.45 NT$677.21 View NT$637.77 NT$616.26 NT$593.68 Quote	Min.: 1 Mult.: 1	UR	Circuit Breakers	B-Trip	15 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 25A,MCB B CHAR 1 PL, 277VAC, UL1077 1B25UR Altech 1: NT$912.74 3In Stock	Mfr. Part # 1B25UR Mouser Part # 845-1B25UR	Altech	Circuit Breakers 25A,MCB B CHAR 1 PL, 277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	3In Stock	NT$912.74 NT$639.92 NT$613.39 NT$581.85 View NT$552.09 NT$538.83 Quote	Min.: 1 Mult.: 1	UR			25 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 10A,MCB C CHAR 1 PL, 277VAC, UL1077 1C10UR Altech 1: NT$912.74 1In Stock	Mfr. Part # 1C10UR Mouser Part # 845-1C10UR	Altech	Circuit Breakers 10A,MCB C CHAR 1 PL, 277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	1In Stock	NT$912.74 NT$639.92 NT$614.47 NT$588.66 View NT$569.30 NT$555.32 Quote	Min.: 1 Mult.: 1	UR			10 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 10A,MCB D CHAR 1 PL, 277VAC, UL1077 1D10UR Altech 1: NT$1,030.69 5In Stock	Mfr. Part # 1D10UR Mouser Part # 845-1D10UR	Altech	Circuit Breakers 10A,MCB D CHAR 1 PL, 277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	5In Stock	NT$1,030.69 NT$936.04 NT$742.10 NT$643.15 View NT$620.21 NT$604.07 NT$587.94 Quote	Min.: 1 Mult.: 1	UR			10 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 20A,MCB D CHAR 1 PL, 277VAC, UL1077 1D20UR Altech 1: NT$912.74 19In Stock	Mfr. Part # 1D20UR Mouser Part # 845-1D20UR	Altech	Circuit Breakers 20A,MCB D CHAR 1 PL, 277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	19In Stock	NT$912.74 NT$767.91 NT$766.83 NT$610.88 View NT$585.79 NT$562.13 NT$547.07 Quote	Min.: 1 Mult.: 1	UR	Circuit Breakers	D-Trip	20 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 4A,MCB D CHAR 1 PL, 277VAC, UL1077 1D4UR Altech 1: NT$1,002.37 6In Stock	Mfr. Part # 1D4UR Mouser Part # 845-1D4UR	Altech	Circuit Breakers 4A,MCB D CHAR 1 PL, 277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	6In Stock	NT$1,002.37 NT$831.72 NT$690.11 NT$628.09 View NT$605.51 NT$586.15 NT$572.88 Quote	Min.: 1 Mult.: 1	UR			4 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 8A,MCB D CHAR 1 PL, 277VAC, UL1077 1D8UR Altech 1: NT$1,002.37 2In Stock	Mfr. Part # 1D8UR Mouser Part # 845-1D8UR	Altech	Circuit Breakers 8A,MCB D CHAR 1 PL, 277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	2In Stock	NT$1,002.37 NT$694.77 NT$626.30 NT$565.00 View NT$558.90 NT$540.98 NT$527.35 Quote	Min.: 1 Mult.: 1	UR			8 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 1A,MCB B CHAR 2PL 480Y/277VAC, UL1077 2B1UR Altech 1: NT$1,796.80 22In Stock	Mfr. Part # 2B1UR Mouser Part # 845-2B1UR	Altech	Circuit Breakers 1A,MCB B CHAR 2PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	22In Stock	NT$1,796.80 NT$1,535.81 NT$1,443.32 NT$1,237.90 View NT$1,199.54 NT$1,164.05 Quote	Min.: 1 Mult.: 1	UR			1 A	277 VAC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 16A,MCB C CHAR 2PL 480Y/277VAC, UL1077 2C16UR Altech 1: NT$2,125.91 4In Stock	Mfr. Part # 2C16UR Mouser Part # 845-2C16UR	Altech	Circuit Breakers 16A,MCB C CHAR 2PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	4In Stock	NT$2,125.91 NT$1,712.20 NT$1,474.51 NT$1,279.85 View NT$1,265.15 NT$1,226.43 Quote	Min.: 1 Mult.: 1	UR	Circuit Breakers	C-Trip	16 A	277 VAC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 0.5A,MCB D CHAR 2PL 480Y/277VAC, UL1077 2D05UR Altech 1: NT$1,796.80 1In Stock	Mfr. Part # 2D05UR Mouser Part # 845-2D05UR	Altech	Circuit Breakers 0.5A,MCB D CHAR 2PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	1In Stock	NT$1,796.80 NT$1,279.85 NT$1,237.90 NT$1,199.54 View NT$1,164.05 Quote	Min.: 1 Mult.: 1	UR			500 mA	277 VAC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 10A,MCB D CHAR 2PL 480Y/277VAC, UL1077 2D10UR Altech 1: NT$1,886.43 7In Stock	Mfr. Part # 2D10UR Mouser Part # 845-2D10UR	Altech	Circuit Breakers 10A,MCB D CHAR 2PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	7In Stock	NT$1,886.43 NT$1,589.95 NT$1,328.24 NT$1,241.13 View NT$1,203.48 NT$1,163.69 Quote	Min.: 1 Mult.: 1	UR	Circuit Breakers	D-Trip	10 A	277 VAC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 20A,MCB D CHAR 2PL 480Y/277VAC, UL1077 2D20UR Altech 1: NT$1,886.43 10In Stock	Mfr. Part # 2D20UR Mouser Part # 845-2D20UR	Altech	Circuit Breakers 20A,MCB D CHAR 2PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	10In Stock	NT$1,886.43 NT$1,564.85 NT$1,443.68 NT$1,206.35 View NT$1,174.45 NT$1,140.39 Quote	Min.: 1 Mult.: 1	UR	Circuit Breakers	D-Trip	20 A	277 VAC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 6A,MCB D CHAR 2PL 480Y/277VAC, UL1077 2D6UR Altech 1: NT$1,279.85 5In Stock	Mfr. Part # 2D6UR Mouser Part # 845-2D6UR	Altech	Circuit Breakers 6A,MCB D CHAR 2PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	5In Stock	NT$1,279.85 NT$1,266.58 NT$1,232.16 View Quote	Min.: 1 Mult.: 1	UR			6 A	277 VAC	2 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 1 POLE, 277VAC UL1077 1B10UR Altech 1: NT$1,090.92 115Factory Stock Available	Mfr. Part # 1B10UR Mouser Part # 845-1B10UR	Altech	Circuit Breakers 1 POLE, 277VAC UL1077 Learn More about Altech ur circuit breakers	Datasheet	115Factory Stock Available More Info Available	NT$1,090.92 NT$995.91 NT$730.26 NT$660.00 View NT$631.68 NT$613.39 NT$601.56 Quote	Min.: 1 Mult.: 1	UR			10 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 12A,MCB B CHAR 1 PL, 277VAC, UL1077 1B12UR Altech 1: NT$639.92 35Factory Stock Available	Mfr. Part # 1B12UR Mouser Part # 845-1B12UR	Altech	Circuit Breakers 12A,MCB B CHAR 1 PL, 277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	35Factory Stock Available More Info Available	NT$639.92 NT$613.39 NT$581.85 NT$557.83 View NT$544.20 Quote	Min.: 1 Mult.: 1	UR			12 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 13A,MCB B CHAR 1 PL, 277VAC, UL1077 1B13UR Altech 1: NT$639.92 15Factory Stock Available	Mfr. Part # 1B13UR Mouser Part # 845-1B13UR	Altech	Circuit Breakers 13A,MCB B CHAR 1 PL, 277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	15Factory Stock Available More Info Available	NT$639.92 NT$621.28 NT$596.19 NT$577.19 View NT$563.92 Quote	Min.: 1 Mult.: 1	UR			13 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 16A,MCB B CHAR 1 PL, 277VAC, UL1077 1B16UR Altech 1: NT$639.92 1Factory Stock Available	Mfr. Part # 1B16UR Mouser Part # 845-1B16UR	Altech	Circuit Breakers 16A,MCB B CHAR 1 PL, 277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	1Factory Stock Available More Info Available	NT$639.92 NT$613.39 NT$581.85 NT$557.83 View NT$544.20 Quote	Min.: 1 Mult.: 1	UR			16 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 1A,MCB B CHAR 1 PL, 277VAC, UL1077 1B1UR Altech 1: NT$639.92 19Factory Stock Available	Mfr. Part # 1B1UR Mouser Part # 845-1B1UR	Altech	Circuit Breakers 1A,MCB B CHAR 1 PL, 277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	19Factory Stock Available More Info Available	NT$639.92 NT$621.28 NT$590.81 NT$571.81 View NT$558.18 Quote	Min.: 1 Mult.: 1	UR			1 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 20A,MCB B CHAR 1 PL, 277VAC, UL1077 1B20UR Altech 1: NT$823.83 56Factory Stock Available	Mfr. Part # 1B20UR Mouser Part # 845-1B20UR	Altech	Circuit Breakers 20A,MCB B CHAR 1 PL, 277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	56Factory Stock Available More Info Available	NT$823.83 NT$748.55 NT$682.23 NT$620.56 View NT$603.36 NT$582.56 NT$567.15 Quote	Min.: 1 Mult.: 1	UR			20 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 30A,MCB B CHAR 1 PL, 277VAC, UL1077 1B30UR Altech 1: NT$639.92 30Factory Stock Available	Mfr. Part # 1B30UR Mouser Part # 845-1B30UR	Altech	Circuit Breakers 30A,MCB B CHAR 1 PL, 277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	30Factory Stock Available More Info Available	NT$639.92 NT$621.28 NT$596.19 NT$577.19 View NT$563.92 Quote	Min.: 1 Mult.: 1	UR			30 A	277 VAC	1 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated

UR Circuit Breakers

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