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See Product Specifications
| Part Number: | 1B4UR |
| Category: | Circuit Protection |
| Subcategory: | Circuit Breakers |
| Manufacturer: | Altech Corporation |
| Packaging: | Bulk |
| Product Status: | Active |
| Mounting Type: | DIN Rail |
| Breaker Type: | Thermal Magnetic |
| Current Rating (Amps): | 4A |
| Voltage Rating - AC: | 277 V |
| Voltage Rating - DC: | - |
| Actuator Type: | Lever |
| Number of Poles: | 1 |
| Illumination: | None |
| Illumination Voltage (Nominal): | - |
| Approval Agency: | UL508 |