140G-H3I4-D12

The 140G-H3I4-D12 from Allen-Bradley serves as a molded case circuit breaker, developed by Rockwell Automation. This device is optimized for reliable electrical protection. It is rated for a maximum current of 125 amperes and operates within a voltage range suitable for various applications. The interruption capacity is substantial, rated at 35 kA, which allows it to tackle significant fault currents effectively.

In terms of protective features, the 140G-H3I4-D12 utilizes an electronic LSIG mechanism, adding layers of safety against overload conditions by detecting and responding to current anomalies. The unit is structured with four poles, which facilitates versatile circuit configurations and adaptations.

The rated insulation voltage of this breaker is set at 1000 volts. The inclusion of an impulse withstand voltage rating of 8 kV indicates its capability to endure transient voltage surges without compromising functionality. Weighing in at 3.53 pounds, the circuit breaker is designed for durability. It supports a mechanical life expectancy of 240 operations per hour and an electrical lifespan of 120 operations per hour, which is critical for applications requiring frequent cycling. Overall, the 140G-H3I4-D12 is a robust component for maintaining circuit integrity in industrial settings.