Why Choose the ABB S303P-C63 Miniature Circuit Breaker?
The ABB S303P-C63 (2CDS383001R0634) is a premium three-pole miniature circuit breaker (MCB) designed to provide reliable protection against overloads and short circuits in industrial electrical installations. As part of the proven ABB S300P series, it combines high fault-breaking performance with dependable operation, making it ideal for industrial power distribution, machinery and OEM applications.
Manufactured in accordance with international IEC and UL standards, the S303P-C63 features a compact DIN rail design, fail-safe screw terminals and flexible top or bottom supply connections for fast, secure installation inside switchboards and industrial control panels.
With a rated current of 63 A, a Type C tripping characteristic and a rated ultimate short-circuit breaking capacity of 25 kA at 415 V AC, the S303P-C63 is ideal for protecting general industrial circuits, power distribution systems, lighting, cable installations and equipment with moderate inrush currents.
Key Advantages
- Industrial-grade three-pole miniature circuit breaker.
- 63 A rated current for demanding industrial installations.
- Type C tripping characteristic for general-purpose industrial circuits.
- 25 kA breaking capacity provides excellent fault protection.
- Fail-safe terminals ensure secure conductor installation.
- Compact DIN rail mounting for quick installation.
Key Features
- ABB S300P series.
- Three-pole configuration.
- 63 A rated current.
- Type C tripping characteristic.
- Rated operating voltage up to 415 V AC.
- Maximum operating voltage up to 125 V DC.
- 25 kA rated ultimate short-circuit breaking capacity at 415 V AC.
- Fail-safe cylinder-lift screw terminals.
- Top or bottom supply connection.
- Compatible with ABB System pro M Compact accessories.
Reliable Protection for Industrial Power Distribution
The ABB S303P-C63 automatically disconnects electrical circuits during overload or short-circuit conditions, protecting cables, switchgear and connected equipment while helping minimise downtime and maintenance costs.
Its Type C tripping characteristic makes it particularly suitable for protecting distribution circuits, commercial installations, industrial machinery and electrical systems with moderate starting currents.
Typical Applications
- Industrial power distribution.
- Commercial electrical installations.
- Industrial control panels.
- Machine building and OEM equipment.
- Cable and feeder protection.
- Manufacturing and automation systems.
