| PartNumber | 1C12UR | 1C12UL | 1C12DL |
| Description | Circuit Breakers 12A,MCB C CHAR 1 PL, 277VAC, UL1077 | Circuit Breakers 12A, C CHAR, 1POLE 277VAC, UL489 | Circuit Breakers 1C12DL, 12A, CIRCUIT BREAKER |
| Manufacturer | Altech | Altech | Altech |
| Product Category | Circuit Breakers | Circuit Breakers | Circuit Breakers |
| RoHS | Y | Y | - |
| Series | UR | UL | UL |
| Current Rating | 12 A | 12 A | 12 A |
| Voltage Rating AC | 277 VAC | 277 VAC | - |
| Number of Poles | 1 Pole | 1 Pole | 1 Pole |
| Actuator Type | Handle | Handle | Handle |
| Minimum Operating Temperature | - 25 C | - 25 C | - 25 C |
| Maximum Operating Temperature | + 55 C | + 55 C | + 55 C |
| Illuminated | Not Illuminated | Not Illuminated | Not Illuminated |
| Termination Style | Box Clamp, Ring Tongue | Box Clamp, Ring Tongue | Box Clamp, Ring Tongue |
| Brand | Altech | Altech | Altech |
| Mounting Style | DIN Rail Mount | DIN Rail Mount | DIN Rail Mount |
| Product Type | C-Trip Circuit Breakers | C-Trip Circuit Breakers | C-Trip Circuit Breakers |
| Factory Pack Quantity | 12 | 12 | 12 |
| Subcategory | Circuit Breakers | Circuit Breakers | Circuit Breakers |
| Voltage Rating DC | - | - | 125 VDC |