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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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 6A,MCB B CHAR 1 PL, 277VAC, UL1077
Datasheet
1In Stock
Min.: 1
Mult.: 1

UR 6 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 20A,MCB B CHAR 3PL 480Y/277VAC, UL1077
Datasheet
3In Stock
Min.: 1
Mult.: 1

UR Circuit Breakers B-Trip 20 A 277 VAC 3 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 20A,MCB D CHAR 1 PL, 277VAC, UL1077
Datasheet
11In Stock
Min.: 1
Mult.: 1

UR Circuit Breakers D-Trip 20 A 277 VAC 1 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 Breakers 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 0.5A,MCB D CHAR 2PL 480Y/277VAC, UL1077
Datasheet
1In Stock
Min.: 1
Mult.: 1

UR 500 mA 277 VAC 2 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 10A,MCB D CHAR 2PL 480Y/277VAC, UL1077
Datasheet
4In Stock
Min.: 1
Mult.: 1

UR Circuit Breakers 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
15In Stock
Min.: 1
Mult.: 1

UR Circuit Breakers D-Trip 20 A 277 VAC 2 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 5A,MCB D CHAR 1 PL, 277VAC, UL1077
Datasheet
1Expected 04-06-2026
Min.: 1
Mult.: 1

UR 5 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 2C60UR, 60A, MCB, C CHAR
Datasheet
1On Order
Min.: 1
Mult.: 1
UR 60 A 277 VAC 2 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 15A,MCB B CHAR 1 PL, 277VAC, UL1077
Datasheet
89Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

UR Circuit Breakers B-Trip 15 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 5A,MCB B CHAR 1 PL, 277VAC, UL1077
Datasheet
81Factory 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 6A,MCB C CHAR 1 PL, 277VAC, UL1077
Datasheet
18Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

UR 6 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 10A,MCB B CHAR 2PL 480Y/277VAC, UL1077
Datasheet
5Factory 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
58Factory 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 5A,MCB D CHAR 2PL 480Y/277VAC, UL1077
Datasheet
2Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

UR Circuit Breakers D-Trip 5 A 277 VAC 2 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 32A,MCB C CHAR 3PL 480Y/277VAC, UL1077
Datasheet
1Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

UR Circuit Breakers C-Trip 32 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
115Factory 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 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
28Factory 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
80Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

UR 20 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 25A,MCB B CHAR 1 PL, 277VAC, UL1077
Datasheet
67Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

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