1492-SPM1B020

The 1492-SPM1B020 from Allen Bradley is a robust AC supplementary protector, adept at safeguarding circuits in various applications. This device is categorized under the B-curve trip type and is equipped with a single pole, supporting efficient protection for electrical systems. With the capacity to handle voltage levels of 277 volts AC and 48 volts DC, it ensures reliable performance across different operating conditions.

A key specification of the 1492-SPM1B020 is its rated insulation voltage, which measures 250 volts AC when evaluating phase to ground, and up to 440 volts AC for phase to phase connections. This level of insulation allows for significant safety and performance in higher voltage applications. Providing a current rating of 2 Amperes, the protector can manage standard loads without issues.

The electrical endurance of this device stands out, with a capacity for up to 20,000 operations, affirming its long-lasting reliability in demanding environments. Furthermore, it is designed for operation within a frequency range of 50 to 60 hertz. The supplementary protector can withstand a maximum short-circuit breaking capacity of 15 kiloamperes, which safeguards connected circuits from overload conditions.

For testing purposes, the dielectric withstand voltage is set at 2 kilovolts, further assuring its robustness. The reset mechanism uses a toggle switch for easy operation, while the magnetic trip unit ensures efficient tripping in fault conditions. Designed for mount on DIN rails, the 1492-SPM1B020 complies with overvoltage category III standards, making it suitable for a wide range of industrial applications.