Why Choose the ABB S203M-Z63NA Miniature Circuit Breaker?
The ABB S203M-Z63NA is a high performance three-pole miniature circuit breaker (MCB) from the trusted ABB System pro M Compact S200M series. Designed to provide dependable overload and short circuit protection, it is suitable for industrial, commercial and specialist electrical installations requiring a Z characteristic trip curve for highly sensitive loads.
The S200M range combines excellent protection with compact dimensions, making it ideal for modern distribution boards and control panels. Featuring thermal and magnetic tripping mechanisms, the S203M-Z63NA delivers reliable circuit protection while helping maximise system uptime and equipment safety.
With a 63 A rated current, three protected poles and a 10 kA breaking capacity, this miniature circuit breaker is engineered for demanding applications where precise protection of electronic equipment and specialised circuits is essential.
Key Advantages
- High quality three-pole miniature circuit breaker for industrial installations.
- 63 A rated current for higher load applications.
- Z characteristic provides fast magnetic tripping for sensitive equipment.
- 10 kA breaking capacity for dependable fault protection.
- Thermal and magnetic trip mechanisms for comprehensive circuit protection.
- DIN rail mounting for fast installation within distribution boards and control panels.
Key Features
- ABB System pro M Compact S200M series.
- 63 A current rating.
- Three-pole (3P) configuration.
- Z curve tripping characteristic.
- 10 kA rated breaking capacity.
- Suitable for AC and DC applications.
- DIN rail mounting.
- Compatible with ABB auxiliary and signalling accessories.
Reliable Protection for Critical Electrical Circuits
The ABB S203M-Z63NA protects electrical installations against overloads and short circuits using independent thermal and magnetic tripping mechanisms. Its fast acting Z characteristic makes it particularly suitable for protecting sensitive electronic equipment with low inrush current tolerance.
Designed for industrial and commercial electrical systems, the S200M range offers long mechanical life, high reliability and compatibility with ABB accessories, helping engineers build flexible and dependable control panels and distribution systems.
Typical Applications
- Industrial control panels.
- Automation systems.
- Sensitive electronic equipment.
- PLC and instrumentation circuits.
- Machine building and OEM equipment.
- Commercial electrical distribution boards.
