1492-SPM1D040
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Overview of Allen-Bradley 1492-SPM1D040
The Allen-Bradley 1492-SPM1D040 is a single-pole miniature circuit breaker supplementary protector designed for use in control panels and industrial electrical systems. It features a 4 Amp current rating with a D trip curve suitable for high inrush current protection, and operates at voltages up to 277 V AC and 48 V DC.
Key Features of Allen-Bradley 1492-SPM1D040
- Current Rating: 4 Amps
- Poles: Single-pole (1P)
- Trip Curve: Curve D (high inrush protection)
- Voltage Rating: 277 V AC, 48 V DC
- Interrupting Capacity: 10 kA (UL rated)
- Mounting: DIN rail mountable
- Standards Compliance: UL 1077, IEC 60947-2 certified
- Operation Indication: ON (red) / OFF (green) visual indicator
- Compact Design: Suitable for space-limited control panels
Technical Specifications of 1492-SPM1D040
| Rated Current | 4 A |
| Trip Curve | D |
| Voltage Rating | 277 V AC, 48 V DC |
| Poles | 1 |
| Interrupting Capacity | 10 kA |
| Mounting Type | DIN Rail |
| Dimensions (H x W x D) | Approximately 88 x 69 x 17.5 mm |
| Standards | UL 1077, IEC 60947-2 |
Applications / Use Case
This supplementary protector is used for overload and short circuit protection in control and distribution panels, particularly in industrial and commercial environments with high inrush current devices. Typical applications include transformer protection, lighting circuits, control coils, and pilot devices where compact, reliable circuit protection is essential.
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