ABB S303 MCB, 3P, 10A Curve C, 415V AC, 125V DC, 15 kA Breaking Capacity

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
• Screw terminal design allows easy installation and wiring
• Compact dimensions facilitate space-saving in control panels
• Type C characteristic enables suitability for high inrush currents
• Built for commercial and industrial applications with reliability
• Manual reset feature provides straightforward trip management

• Mounted in industrial control panels for motor protection
• Utilised in commercial electrical installations for load management
• Integrated into automation systems for enhanced safety
• Utilised in backup systems as a critical protective device

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

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.