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| Part Number | 1D40UR |
| Description | 1D40UR 40A MCB D CHAR 1 P 277VAC |
| Manufacturer | Altech Corporation |
| Series | UR |
| Part Status | Active |
| Breaker Type | Thermal Magnetic |
| Current Rating | 40A |
| Voltage Rating - AC | 277V |
| Voltage Rating - DC | - |
| Number of Poles | 1 |
| Actuator Type | Lever |
| Illumination | None |
| Illumination Voltage (Nominal) | - |
| Mounting Type | DIN Rail |
| Approvals | UL489 |