UL (AC) & DL (DC) Circuit Breakers

Altech UL (AC) and DL (DC) Circuit Breakers are available in both AC and DC models and offer 10kA short-circuit interrupting capacity. These thermal magnetic modules feature a 17.5mm width, a miniature size, and DIN-rail mounting. The series has a 0.3 to 63A current range and 6000 switching cycles of electrical life. Applications for Altech UL (AC) and DL (DC) Circuit Breakers include lighting, wiring protection, appliances, transformers, and telecommunication.

Results: 140
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Description Datasheet Availability Pricing (EUR) 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
Packaging
Altech Circuit Breakers 3A, C CHAR, 2POLE 480Y/277VAC,UL489
Datasheet
15In Stock
Min.: 1
Mult.: 1

UL 3 A 277 VAC 2 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 8A, C CHAR, 1POLE 277VAC, UL489
Datasheet
1In Stock
6On Order
Min.: 1
Mult.: 1

UL Circuit Breaker C-Trip 8 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 3A, C CHAR, 1POLE 277VAC, UL489
Datasheet
208In Stock
Min.: 1
Mult.: 1

UL Circuit Breaker C-Trip 3 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 12A, C CHAR, 2POLE 480Y/277VAC,UL489
Datasheet
66In Stock
Min.: 1
Mult.: 1

UL Circuit Breaker C-Trip 12 A 277 VAC 2 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 0.5A, C CHAR, 1POLE 277VAC, UL489
Datasheet
5In Stock
Min.: 1
Mult.: 1

UL 500 mA 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 10A, C CHAR, 1POLE 277VAC, UL489
Datasheet
49In Stock
25Expected 5/22/2026
Min.: 1
Mult.: 1

UL 10 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 4A, C CHAR, 1POLE 277VAC, UL489
Datasheet
26In Stock
Min.: 1
Mult.: 1

UL Circuit Breaker C-Trip 4 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 5A, C CHAR, 1POLE 277VAC, UL489
Datasheet
20In Stock
Min.: 1
Mult.: 1

UL Circuit Breaker C-Trip 5 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 10A, D CHAR, 1POLE 277VAC, UL489
Datasheet
9In Stock
Min.: 1
Mult.: 1

UL Circuit Breaker D-Trip 10 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 20A, D CHAR, 1POLE 277VAC, UL489
Datasheet
10In Stock
Min.: 1
Mult.: 1

UL 20 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 15A, C CHAR, 2POLE 480Y/277VAC,UL489
Datasheet
8In Stock
Min.: 1
Mult.: 1

UL Circuit Breaker C-Trip 15 A 277 VAC 2 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 32A, C CHAR, 2POLE 480Y/277VAC,UL489
Datasheet
10In Stock
Min.: 1
Mult.: 1

UL 32 A 277 VAC 2 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 0.3A, D CHAR, 2POLE 480Y/277VAC,UL489
Datasheet
6In Stock
Min.: 1
Mult.: 1

UL 300 mA 277 VAC 2 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 32A, C CHAR, 3POLE 480Y/277VAC,UL489
Datasheet
6In Stock
Min.: 1
Mult.: 1

UL 32 A 277 VAC 3 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 15A, D CHAR, 3POLE 480Y/277VAC,UL489
Datasheet
12In Stock
Min.: 1
Mult.: 1

UL Circuit Breaker D-Trip 15 A 277 VAC 3 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 20A, D CHAR, 3POLE 480Y/277VAC,UL489
Datasheet
6In Stock
Min.: 1
Mult.: 1

UL Circuit Breaker D-Trip 20 A 277 VAC 3 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 16A, C CHAR, 1POLE 277VAC, UL489
Datasheet
5In Stock
Min.: 1
Mult.: 1

UL 16 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 20A, C CHAR, 1POLE 277VAC, UL489
Datasheet
4In Stock
8Expected 5/22/2026
Min.: 1
Mult.: 1

UL 20 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 2A, C CHAR, 1POLE 277VAC, UL489
Datasheet
9In Stock
Min.: 1
Mult.: 1

UL Circuit Breaker C-Trip 2 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 32A, C CHAR, 1POLE 277VAC, UL489
Datasheet
5In Stock
Min.: 1
Mult.: 1

UL 32 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 6A, C CHAR, 1POLE 277VAC, UL489
Datasheet
5In Stock
Min.: 1
Mult.: 1

UL Circuit Breaker C-Trip 6 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 15A, D CHAR, 1POLE 277VAC, UL489
Datasheet
13In Stock
Min.: 1
Mult.: 1

UL Circuit Breaker D-Trip 15 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 30A, D CHAR, 1POLE 277VAC, UL489
Datasheet
1In Stock
Min.: 1
Mult.: 1

UL 30 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 5A, D CHAR, 1POLE 277VAC, UL489
Datasheet
5In Stock
Min.: 1
Mult.: 1

UL 5 A 277 VAC 1 Pole Handle - 25 C + 55 C Non-Illuminated
Altech Circuit Breakers 5A, C CHAR, 2POLE 480Y/277VAC,UL489
Datasheet
16In Stock
Min.: 1
Mult.: 1

UL 5 A 277 VAC 2 Pole Handle - 25 C + 55 C Non-Illuminated