Why Choose the ABB S303P-C0.5 Miniature Circuit Breaker?
The ABB S303P-C0.5 (2CDS383001R0984) is a high-performance three-pole miniature circuit breaker (MCB) designed to provide reliable protection against overloads and short circuits in industrial electrical installations. As part of the trusted ABB S300P series, it combines a compact modular design with outstanding fault-breaking performance for control circuits, automation systems and OEM machinery.
Manufactured in accordance with recognised IEC and UL standards, the S303P-C0.5 is ideal for industrial control panels, switchgear assemblies and low-current three-phase applications. Its DIN rail mounting arrangement, fail-safe cylinder-lift screw terminals and top or bottom supply connection simplify installation while ensuring long-term reliability.
With a rated current of 0.5 A, a Type C tripping characteristic and a rated short-circuit breaking capacity of 25 kA, the S303P-C0.5 is particularly suited to protecting low-current control circuits, instrumentation, signalling equipment and sensitive industrial systems requiring dependable fault protection.
Key Advantages
- Industrial-grade three-pole miniature circuit breaker.
- 0.5 A rated current for low-current industrial circuits.
- Type C tripping characteristic for moderate inrush currents.
- 25 kA short-circuit breaking capacity.
- Fail-safe terminals ensure secure conductor installation.
- Compact DIN rail mounting simplifies panel assembly.
Key Features
- ABB S300P series.
- Three-pole configuration.
- 0.5 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 breaking capacity.
- Fail-safe cylinder-lift screw terminals.
- Top or bottom supply connection.
- Compatible with ABB System pro M Compact accessories.
Reliable Protection for Low-Current Industrial Circuits
The ABB S303P-C0.5 automatically disconnects electrical circuits during overload or short-circuit conditions, protecting control equipment, signalling systems, cables and connected devices from electrical damage while helping reduce downtime.
Its Type C tripping characteristic accommodates moderate inrush currents without unnecessary tripping, making it ideal for industrial automation, instrumentation, control circuits and OEM machinery requiring dependable low-current protection.
Typical Applications
- Industrial control panels.
- Automation systems.
- Instrumentation and measurement equipment.
- Low-current control circuits.
- OEM machinery.
- Three-phase signalling and monitoring systems.