ABB System Pro M Compact S303 Miniature Circuit Breaker, 3-Pole, 10 A, Type C, 415 V ac AC, 125 V dc DC, 25 kA Breaking

This MCB is a 3-pole circuit breaker from the S303 series designed to provide efficient protection against overloads and short circuits in electrical installations. With a current rating of 10A and a robust tripping characteristic of Type C, this device operates effectively under a rated AC voltage of 415V. Measuring 52.5mm in width and 69mm in depth, it is conveniently mounted on a DIN rail, ensuring a secure and space-efficient installation.

• Supports a breaking capacity of 15kA for enhanced safety

• Mounted in industrial control panels for motor protection

The Type C tripping characteristic is designed to withstand brief surges, making it ideal for applications that involve motors and transformers. This characteristic ensures that the device does not trip during normal operation, while still providing adequate protection against sustained overloads.

When installing this device, ensure that it is mounted on a DIN rail in a dry environment to maintain optimal performance. Additionally, consider the ambient temperature, as it affects the rated current capacity; operation at extreme temperatures may necessitate derating.

Regular inspection for loose connections and any signs of wear or damage is advised. Additionally, testing by simulating overload conditions can ensure that the breaker is functioning correctly and can trip as expected during fault conditions.