Why Choose the ABB S203-Z20 Miniature Circuit Breaker?
The ABB S203-Z20 is a premium three-pole miniature circuit breaker (MCB) from the proven ABB System pro M Compact S200 series. Designed to provide dependable protection against overloads and short circuits, it is ideally suited to industrial automation, control panels and sensitive electronic equipment where fast fault protection is required.
Featuring a Z tripping characteristic, the S203-Z20 is specifically engineered for applications requiring rapid magnetic tripping, making it ideal for protecting PLCs, instrumentation, semiconductor devices and other sensitive electronic circuits. Its precision thermal and magnetic tripping mechanisms deliver reliable protection while reducing the risk of damage during fault conditions.
With a 20 A rated current, three protected poles and a 6 kA breaking capacity, the ABB S203-Z20 provides compact, reliable circuit protection for commercial, industrial and OEM electrical installations while remaining fully compatible with ABB System pro M Compact accessories.
Key Advantages
- High quality three-pole miniature circuit breaker.
- 20 A rated current with Z tripping characteristic.
- Fast magnetic tripping for sensitive electronic equipment.
- 6 kA breaking capacity for dependable circuit protection.
- Thermal overload and magnetic short circuit protection.
- Compatible with ABB System pro M Compact accessories.
Key Features
- ABB System pro M Compact S200 series.
- 20 A rated current.
- Z tripping characteristic.
- Three-pole (3P) configuration.
- 6 kA rated short circuit breaking capacity.
- Current limiting construction.
- DIN rail mounting.
- Failsafe bi-directional cylinder-lift screw terminals.
Reliable Protection for Sensitive Electronic Circuits
The ABB S203-Z20 automatically disconnects electrical circuits during overload and short circuit conditions, helping to protect valuable electronic equipment and minimise downtime. Its Z characteristic provides rapid magnetic tripping, making it particularly suitable for sensitive automation and control systems.
Manufactured to recognised international standards, the S203-Z20 delivers dependable long-term performance, excellent electrical endurance and straightforward installation within modern electrical distribution boards and industrial control panels.
Typical Applications
- PLC and automation systems.
- Industrial control panels.
- Instrumentation circuits.
- Semiconductor equipment.
- Electronic control systems.
- Commercial and industrial electrical installations.
