The Allen Bradley 1492-SPM1D100 is a miniature circuit breaker designed for supplementary protection in electrical systems. This 10-amp, single-pole device operates at 277VAC and 48VDC, making it suitable for a variety of industrial applications where equipment protection is critical. It features a current-limiting design and dual terminals, allowing for flexible wiring options, including bus bar connections. Engineered to perform reliably even in challenging environments, it is calibrated at a 40 °C (104 °F) ambient temperature. This model, distributed by BSP Automation, is an excellent choice for systems requiring a trip curve D rating to handle highly inductive loads effectively.