Circuit Breakers – Mouser United Kingdom

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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 (GBP) 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 60A,MCB B CHAR 3PL 480Y/277VAC, UL1077 3B60UR Altech 1: £42.62 5Factory Stock Available	Mfr. Part No. 3B60UR Mouser Part No 845-3B60UR	Altech	Circuit Breakers 60A,MCB B CHAR 3PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	5Factory Stock Available More Info Available	£42.62 £42.61 £39.82 £38.81 View £37.91 Quote	Min.: 1 Mult.: 1	UR			60 A	277 VAC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 63A,MCB B CHAR 3PL 480Y/277VAC, UL1077 3B63UR Altech 1: £42.62 2Factory Stock Available	Mfr. Part No. 3B63UR Mouser Part No 845-3B63UR	Altech	Circuit Breakers 63A,MCB B CHAR 3PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	2Factory Stock Available More Info Available	£42.62 £42.18 £40.13 £37.23 View £36.23 £35.33 Quote	Min.: 1 Mult.: 1	UR			63 A	277 VAC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 10A,MCB C CHAR 3PL 480Y/277VAC, UL1077 3C10UR Altech 1: £40.20 4Factory Stock Available	Mfr. Part No. 3C10UR Mouser Part No 845-3C10UR	Altech	Circuit Breakers 10A,MCB C CHAR 3PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	4Factory Stock Available More Info Available	£40.20 £39.80 £38.89 £38.00 View Quote	Min.: 1 Mult.: 1	UR			10 A	277 VAC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 15A,MCB C CHAR 3PL 480Y/277VAC, UL1077 3C15UR Altech 1: £40.20 14Factory Stock Available	Mfr. Part No. 3C15UR Mouser Part No 845-3C15UR	Altech	Circuit Breakers 15A,MCB C CHAR 3PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	14Factory Stock Available More Info Available	£40.20 £40.19 £39.77 View Quote	Min.: 1 Mult.: 1	UR			15 A	277 VAC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 16A,MCB C CHAR 3PL 480Y/277VAC, UL1077 3C16UR Altech 1: £40.20 14Factory Stock Available	Mfr. Part No. 3C16UR Mouser Part No 845-3C16UR	Altech	Circuit Breakers 16A,MCB C CHAR 3PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	14Factory Stock Available More Info Available	£40.20 £37.36 £36.57 £35.79 View Quote	Min.: 1 Mult.: 1	UR			16 A	277 VAC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 1A,MCB C CHAR 3PL 480Y/277VAC, UL1077 3C1UR Altech 1: £40.20 2Factory Stock Available	Mfr. Part No. 3C1UR Mouser Part No 845-3C1UR	Altech	Circuit Breakers 1A,MCB C CHAR 3PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	2Factory Stock Available More Info Available	£40.20 £40.19 £37.57 £36.60 View £35.76 Quote	Min.: 1 Mult.: 1	UR			1 A	277 VAC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 20A,MCB C CHAR 3PL 480Y/277VAC, UL1077 3C20UR Altech 1: £40.20 27Factory Stock Available	Mfr. Part No. 3C20UR Mouser Part No 845-3C20UR	Altech	Circuit Breakers 20A,MCB C CHAR 3PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	27Factory Stock Available More Info Available	£40.20 £38.77 £37.30 £36.33	Min.: 1 Mult.: 1	UR			20 A	277 VAC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 25A,MCB C CHAR 3PL 480Y/277VAC, UL1077 3C25UR Altech 1: £49.37 2Factory Stock Available	Mfr. Part No. 3C25UR Mouser Part No 845-3C25UR	Altech	Circuit Breakers 25A,MCB C CHAR 3PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	2Factory Stock Available More Info Available	£49.37 £43.74 £40.64 £37.81 View £36.86 £36.01 Quote	Min.: 1 Mult.: 1	UR			25 A	277 VAC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 2A,MCB C CHAR 3PL 480Y/277VAC, UL1077 3C2UR Altech 1: £40.20 15Factory Stock Available	Mfr. Part No. 3C2UR Mouser Part No 845-3C2UR	Altech	Circuit Breakers 2A,MCB C CHAR 3PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	15Factory Stock Available More Info Available	£40.20 £40.19 £37.57 £36.60 View £35.77 Quote	Min.: 1 Mult.: 1	UR			2 A	277 VAC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 32A,MCB C CHAR 3PL 480Y/277VAC, UL1077 3C32UR Altech 1: £40.20 2Factory Stock Available	Mfr. Part No. 3C32UR Mouser Part No 845-3C32UR	Altech	Circuit Breakers 32A,MCB C CHAR 3PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	2Factory Stock Available More Info Available	£40.20 £37.51 £36.55 £35.71 View Quote	Min.: 1 Mult.: 1	UR	Circuit Breakers	C-Trip	32 A	277 VAC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 40A,MCB C CHAR 3PL 480Y/277VAC, UL1077 3C40UR Altech 1: £42.62 44Factory Stock Available	Mfr. Part No. 3C40UR Mouser Part No 845-3C40UR	Altech	Circuit Breakers 40A,MCB C CHAR 3PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	44Factory Stock Available More Info Available	£42.62 £42.39 £41.42 View Quote	Min.: 1 Mult.: 1	UR	Circuit Breakers	C-Trip	40 A	277 VAC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 50A,MCB C CHAR 3PL 480Y/277VAC, UL1077 3C50UR Altech 1: £42.62 31Factory Stock Available	Mfr. Part No. 3C50UR Mouser Part No 845-3C50UR	Altech	Circuit Breakers 50A,MCB C CHAR 3PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	31Factory Stock Available More Info Available	£42.62 £42.61 £39.82 £38.81 View £37.91 Quote	Min.: 1 Mult.: 1	UR			50 A	277 VAC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 5A,MCB C CHAR 3PL 480Y/277VAC, UL1077 3C5UR Altech 1: £40.20 2Factory Stock Available	Mfr. Part No. 3C5UR Mouser Part No 845-3C5UR	Altech	Circuit Breakers 5A,MCB C CHAR 3PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	2Factory Stock Available More Info Available	£40.20 £40.19 £37.57 £36.60 View £35.76 Quote	Min.: 1 Mult.: 1	UR			5 A	277 VAC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 6A,MCB C CHAR 3PL 480Y/277VAC, UL1077 3C6UR Altech 1: £40.20 21Factory Stock Available	Mfr. Part No. 3C6UR Mouser Part No 845-3C6UR	Altech	Circuit Breakers 6A,MCB C CHAR 3PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	21Factory Stock Available More Info Available	£40.20 £40.19 £39.39 £38.48 View Quote	Min.: 1 Mult.: 1	UR			6 A	277 VAC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 0.5A,MCB D CHAR 3PL 480Y/277VAC, UL1077 3D05UR Altech 1: £40.20 1Factory Stock Available	Mfr. Part No. 3D05UR Mouser Part No 845-3D05UR	Altech	Circuit Breakers 0.5A,MCB D CHAR 3PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	1Factory Stock Available More Info Available	£40.20 £39.67 £36.44 £35.49 View £34.65 Quote	Min.: 1 Mult.: 1	UR			500 mA	277 VAC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 10A,MCB D CHAR 3PL 480Y/277VAC, UL1077 3D10UR Altech 1: £40.20 25Factory Stock Available	Mfr. Part No. 3D10UR Mouser Part No 845-3D10UR	Altech	Circuit Breakers 10A,MCB D CHAR 3PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	25Factory Stock Available More Info Available	£40.20 £38.58 £35.44 £34.12 View £32.89 Quote	Min.: 1 Mult.: 1	UR			10 A	277 VAC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 12A,MCB D CHAR 3PL 480Y/277VAC, UL1077 3D12UR Altech 1: £40.20 2Factory Stock Available	Mfr. Part No. 3D12UR Mouser Part No 845-3D12UR	Altech	Circuit Breakers 12A,MCB D CHAR 3PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	2Factory Stock Available More Info Available	£40.20 £38.16 £37.20 £36.35 View Quote	Min.: 1 Mult.: 1	UR			12 A	277 VAC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 20A,MCB D CHAR 3PL 480Y/277VAC, UL1077 3D20UR Altech 1: £55.19 34Factory Stock Available	Mfr. Part No. 3D20UR Mouser Part No 845-3D20UR	Altech	Circuit Breakers 20A,MCB D CHAR 3PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	34Factory Stock Available More Info Available	£55.19 £48.07 £44.05 £39.05 View £38.05 £37.23 Quote	Min.: 1 Mult.: 1	UR	Circuit Breakers	D-Trip	20 A	277 VAC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 25A,MCB D CHAR 3PL 480Y/277VAC, UL1077 3D25UR Altech 1: £40.20 18Factory Stock Available	Mfr. Part No. 3D25UR Mouser Part No 845-3D25UR	Altech	Circuit Breakers 25A,MCB D CHAR 3PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	18Factory Stock Available More Info Available	£40.20 £38.16 £37.20 £36.35 View Quote	Min.: 1 Mult.: 1	UR			25 A	277 VAC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 2A,MCB D CHAR 3PL 480Y/277VAC, UL1077 3D2UR Altech 1: £40.20 4Factory Stock Available	Mfr. Part No. 3D2UR Mouser Part No 845-3D2UR	Altech	Circuit Breakers 2A,MCB D CHAR 3PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	4Factory Stock Available More Info Available	£40.20 £40.19 £37.57 £36.60 View £35.76 Quote	Min.: 1 Mult.: 1	UR	Circuit Breakers	D-Trip	2 A	277 VAC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 32A,MCB D CHAR 3PL 480Y/277VAC, UL1077 3D32UR Altech 1: £48.51 34Factory Stock Available	Mfr. Part No. 3D32UR Mouser Part No 845-3D32UR	Altech	Circuit Breakers 32A,MCB D CHAR 3PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	34Factory Stock Available More Info Available	£48.51 £42.97 £40.32 £37.57 View £36.60 £35.76 Quote	Min.: 1 Mult.: 1	UR			32 A	277 VAC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 3A,MCB D CHAR 3PL 480Y/277VAC, UL1077 3D3UR Altech 1: £40.20 11Factory Stock Available	Mfr. Part No. 3D3UR Mouser Part No 845-3D3UR	Altech	Circuit Breakers 3A,MCB D CHAR 3PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	11Factory Stock Available More Info Available	£40.20 £39.78 £37.84 £35.11 View £34.17 £33.31 Quote	Min.: 1 Mult.: 1	UR			3 A	277 VAC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 40A,MCB D CHAR 3PL 480Y/277VAC, UL1077 3D40UR Altech 1: £52.34 1Factory Stock Available	Mfr. Part No. 3D40UR Mouser Part No 845-3D40UR	Altech	Circuit Breakers 40A,MCB D CHAR 3PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	1Factory Stock Available More Info Available	£52.34 £46.43 £42.62 £40.45 View £39.44 £38.54 Quote	Min.: 1 Mult.: 1	UR			40 A	277 VAC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 4A,MCB D CHAR 3PL 480Y/277VAC, UL1077 3D4UR Altech 1: £40.20 1Factory Stock Available	Mfr. Part No. 3D4UR Mouser Part No 845-3D4UR	Altech	Circuit Breakers 4A,MCB D CHAR 3PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	1Factory Stock Available More Info Available	£40.20 £40.19 £37.57 £36.60 View £35.76 Quote	Min.: 1 Mult.: 1	UR			4 A	277 VAC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated
Circuit Breakers 5A,MCB D CHAR 3PL 480Y/277VAC, UL1077 3D5UR Altech 1: £40.20 8Factory Stock Available	Mfr. Part No. 3D5UR Mouser Part No 845-3D5UR	Altech	Circuit Breakers 5A,MCB D CHAR 3PL 480Y/277VAC, UL1077 Learn More about Altech ur circuit breakers	Datasheet	8Factory Stock Available More Info Available	£40.20 £40.19 £37.57 £36.60 View £35.76 Quote	Min.: 1 Mult.: 1	UR			5 A	277 VAC	3 Pole	Handle	- 25 C	+ 55 C	Non-Illuminated