Allen Bradley 1492-SPM1D040 4A Miniature Circuit Breaker (Pack of 2, Lot of 2)

The Allen Bradley 1492-SPM1D040 is a high-performance miniature circuit breaker designed for supplementary protection in industrial control panels and automation systems. This 1-pole breaker features a 4A current rating with a D-trip curve, making it ideal for applications with high inrush currents such as motor starting and transformer circuits. It provides reliable overcurrent and short-circuit protection, compliant with UL 1077 and IEC 60947-2 standards. Key benefits include compact DIN rail mounting for space-saving installation, finger-safe terminals for enhanced safety, and a wide operating temperature range suitable for harsh environments. Compared to similar products like those from Siemens or Schneider Electric, the 1492-SPM series offers superior breaking capacity and integration with Rockwell Automation systems, reducing downtime and improving system reliability. Drawbacks may include higher cost for premium branding and limited availability in non-industrial retail channels. This lot includes two new, unopened packs, each containing 2 breakers (total 4 units), in excellent condition as per images, with no visible damage or wear. Applications span PLC panels, lighting circuits, and control equipment in manufacturing, oil & gas, and utilities sectors. For detailed model decoding, the 'SPM' denotes Supplementary Protector Miniature, '1' for 1-pole, 'D' for trip curve, and '040' for 4A rating.