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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Description Datasheet Availability Pricing (GBP) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Product
Type
Current Rating
Voltage Rating AC
Number of Poles
Actuator Type
Minimum Operating Temperature
Maximum Operating Temperature
Illuminated
Altech Circuit Breakers 20A,MCB B CHAR 3PL 480Y/277VAC, UL1077
Datasheet
3In Stock
Min.: 1
Mult.: 1

UR Circuit Breaker B-Trip 20 A 277 VAC 3 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 6A,MCB D CHAR 1 PL, 277VAC, UL1077
Datasheet
2In Stock
Min.: 1
Mult.: 1

UR 6 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 5A,MCB D CHAR 2PL 480Y/277VAC, UL1077
Datasheet
7In Stock
Min.: 1
Mult.: 1

UR Circuit Breaker D-Trip 5 A 277 VAC 2 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 0.5A, MCB B CHAR 1 PL, 277VAC, UL1077
Datasheet
6In Stock
Min.: 1
Mult.: 1

UR Circuit Breaker B-Trip 500 mA 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 1A,MCB B CHAR 2PL 480Y/277VAC, UL1077
Datasheet
22In Stock
Min.: 1
Mult.: 1

UR 1 A 277 VAC 2 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 10A,MCB D CHAR 2PL 480Y/277VAC, UL1077
Datasheet
11In Stock
Min.: 1
Mult.: 1

UR Circuit Breaker D-Trip 10 A 277 VAC 2 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 20A,MCB D CHAR 2PL 480Y/277VAC, UL1077
Datasheet
28In Stock
5On Order
Min.: 1
Mult.: 1

UR Circuit Breaker D-Trip 20 A 277 VAC 2 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 6A,MCB B CHAR 1 PL, 277VAC, UL1077
Datasheet
1On Order
Min.: 1
Mult.: 1

UR 6 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 20A,MCB C CHAR 2PL 480Y/277VAC, UL1077
Datasheet
15Expected 06/03/2026
Min.: 1
Mult.: 1

UR Circuit Breaker C-Trip 20 A 277 VAC 2 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 0.5A,MCB D CHAR 2PL 480Y/277VAC, UL1077
Datasheet
5Expected 10/03/2026
Min.: 1
Mult.: 1

UR 500 mA 277 VAC 2 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 5A,MCB B CHAR 1 PL, 277VAC, UL1077
Datasheet
95Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

UR 5 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 3A,MCB C CHAR 1 PL, 277VAC, UL1077
Datasheet
45Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

UR 3 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 2A,MCB D CHAR 1 PL, 277VAC, UL1077
Datasheet
52Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

UR 2 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 10A,MCB B CHAR 2PL 480Y/277VAC, UL1077
Datasheet
6Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

10 A 277 VAC 2 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 2A,MCB D CHAR 2PL 480Y/277VAC, UL1077
Datasheet
157Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

UR 2 A 277 VAC 2 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 32A,MCB C CHAR 3PL 480Y/277VAC, UL1077
Datasheet
7Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

UR Circuit Breaker C-Trip 32 A 277 VAC 3 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 16A,MCB D CHAR 3PL 480Y/277VAC, UL1077
Datasheet
21Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

UR 16 A 277 VAC 3 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 63A,MCB D CHAR 3PL 480Y/277VAC, UL1077
Datasheet
1Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

UR
Altech Circuit Breakers 1 POLE, 277VAC UL1077
Datasheet
196Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

UR 10 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 12A,MCB B CHAR 1 PL, 277VAC, UL1077
Datasheet
35Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

UR 12 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 13A,MCB B CHAR 1 PL, 277VAC, UL1077
Datasheet
15Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

UR 13 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 15A,MCB B CHAR 1 PL, 277VAC, UL1077
Datasheet
93Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

UR Circuit Breaker B-Trip 15 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 16A,MCB B CHAR 1 PL, 277VAC, UL1077
Datasheet
1Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

UR 16 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 1A,MCB B CHAR 1 PL, 277VAC, UL1077
Datasheet
33Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

UR 1 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 20A,MCB B CHAR 1 PL, 277VAC, UL1077
Datasheet
8Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

UR 20 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated