Why Choose the ABB S203M-C3 Miniature Circuit Breaker?
The ABB S203M-C3 is a high-quality 3-pole miniature circuit breaker (MCB) designed to protect low current electrical circuits against overloads and short circuits in commercial, industrial and OEM applications. As part of the trusted ABB System pro M Compact S200M series, it provides dependable circuit protection in a compact DIN rail mounted format.
Featuring a Type C tripping characteristic, the S203M-C3 is suitable for circuits with moderate inrush currents, including control transformers, automation equipment, instrumentation supplies and selected inductive loads. Its thermal and magnetic tripping mechanisms provide reliable fault protection while helping to reduce unnecessary tripping during normal start-up conditions.
With a 3 A rated current, 3-pole configuration and 10 kA breaking capacity, the ABB S203M-C3 is ideal for low current three-phase circuits where compact installation, ABB quality and standards-compliant protection are required.
Key Advantages
- Reliable 3-pole miniature circuit breaker for low current electrical protection.
- 3 A rated current suitable for control and auxiliary circuits.
- Type C tripping characteristic for moderate inrush current applications.
- 10 kA breaking capacity for dependable short-circuit protection.
- Compact DIN rail mounting for fast installation.
- Compatible with ABB System pro M Compact modular accessories.
Key Features
- ABB System pro M Compact S200M series.
- 3-pole miniature circuit breaker.
- 3 A rated current.
- Type C tripping curve.
- 10 kA rated short-circuit breaking capacity.
- Delayed thermal tripping mechanism for overload protection.
- Electromechanical tripping mechanism for short-circuit protection.
- DIN rail mounted design for distribution boards and control panels.
Reliable Protection for Low Current Three-Phase Circuits
The ABB S203M-C3 automatically disconnects electrical circuits when overload or short-circuit conditions occur. This helps protect control wiring, auxiliary supplies, switchgear and connected equipment from damage caused by excessive current.
Its Type C characteristic makes it well suited to applications where a temporary inrush current may occur during equipment start-up. The 3-pole design allows simultaneous protection across three conductors, making it suitable for industrial panels, machinery and commercial distribution systems.
Typical Applications
- Industrial control panels.
- Low current three-phase circuits.
- Instrumentation and auxiliary supplies.
- Small transformer circuits.
- OEM machinery and automation systems.
- Commercial and industrial distribution boards.
