ABB S303 MCB, 3P, 63A Curve C, 415V AC, 125V DC, 15 kA Breaking Capacity

This MCB is a sophisticated 3 Pole Circuit Breaker designed for reliable electrical protection in commercial and industrial applications. With a current rating of 63A and a breaking capacity of 15kA, it is ideal for safeguarding electrical installations from overloads and short circuits. The compact unit measures 52.5mm in width and 69mm in depth, designed for convenient mounting on standard DIN rails.

• Robust 15kA MCB breaking capacity allows for maximum short-circuit protection
• Tripping characteristics of Type C enhance operational reliability
• Seamless installation on DIN rail simplifies configuration and maintenance
• Screw terminal design ensures secure and efficient cable connections
• Rated for 415V AC operation, suitable for diverse electrical systems
• Compatible with a full range of ABB Circuit Breakers and accessories

• Used for electrical protection in commercial buildings
• Ideal for industrial machinery and equipment safety
• Found in automated control systems for overload protection
• Utilised in distribution boards for effective load management
• Designed for integration with low voltage electrical circuits

It is rated for use in systems operating at 415V AC, making it suitable for both commercial and industrial electrical installations.

The Type C characteristic allows for a higher tolerance of temporary inrush currents, making it suitable for devices with power surges, while still providing essential protection against sustained overloads.

It is designed to mount easily onto standard DIN rails, ensuring a secure fit and quick setup in electrical panels.

Regular inspections of connections and functionality are advised, alongside ensuring that the trip indicator is functioning correctly to maintain operational safety.