Why Choose the ABB S203-Z1 Miniature Circuit Breaker?
The ABB S203-Z1 is a high-performance three-pole miniature circuit breaker (MCB) from the trusted ABB System pro M Compact S200 series. Featuring a Z tripping characteristic and a 1 A current rating, it is specifically designed to protect sensitive electrical circuits where fast magnetic tripping is essential. It provides dependable protection against overloads and short circuits in industrial, commercial and specialist electrical installations.
Manufactured to ABB's exacting quality standards, the S203-Z1 combines thermal overload protection with instantaneous electromagnetic short circuit protection. Its compact DIN rail mounted design allows quick installation inside distribution boards and control panels while maintaining excellent reliability and long service life.
Designed to comply with internationally recognised standards, this miniature circuit breaker is suitable for machine builders, panel manufacturers, OEM equipment and industrial automation applications requiring dependable circuit protection for sensitive loads.
Key Advantages
- Three-pole miniature circuit breaker for reliable circuit protection.
- 1 A rated current for low-current industrial circuits.
- Z tripping characteristic for highly sensitive electrical equipment.
- Protects against both overloads and short circuits.
- Compact DIN rail mounting simplifies installation.
- Compatible with ABB System pro M Compact accessories.
Key Features
- ABB System pro M Compact S200 series.
- Model: S203-Z1.
- Rated current: 1 A.
- Three protected poles (3P).
- Z curve tripping characteristic.
- Thermal and electromagnetic trip mechanisms.
- 6 kA breaking capacity to IEC/EN 60898-1.
- Suitable for DIN rail mounting.
Reliable Protection for Sensitive Electrical Circuits
The ABB S203-Z1 is engineered to disconnect electrical circuits rapidly when overloads or short circuits occur. Its highly sensitive Z characteristic makes it particularly suitable for protecting electronic equipment, control circuits, PLC systems, instrumentation and other applications with low inrush currents.
As part of ABB's widely recognised S200 range, the S203-Z1 offers dependable performance, simple installation and compatibility with a comprehensive range of auxiliary contacts, shunt trips and other modular accessories.
Typical Applications
- Industrial control panels.
- PLC and automation systems.
- Instrumentation and control circuits.
- Machine building and OEM equipment.
- Commercial electrical installations.
- Sensitive electronic equipment protection.
