Why Choose the ABB S203-Z10NA Miniature Circuit Breaker?
The ABB S203-Z10NA is a premium 3-pole + neutral miniature circuit breaker (MCB) from the trusted ABB System pro M compact S200 series. Engineered to provide dependable overload and short circuit protection, it is ideal for industrial control panels, automation systems, instrumentation and electronic equipment requiring highly sensitive circuit protection.
Featuring a Z trip characteristic, the S203-Z10NA is specifically designed for circuits with very low inrush currents, making it suitable for protecting PLCs, electronic control systems, semiconductor devices and precision instrumentation. Its current limiting technology helps reduce fault energy, improving equipment protection while maintaining excellent system reliability.
With a 10 A rated current, 3 protected poles plus neutral and a compact DIN rail mounted design, the ABB S203-Z10NA provides straightforward installation and is fully compatible with ABB System pro M compact accessories including auxiliary contacts, shunt trips and undervoltage releases.
Key Advantages
- Reliable 3-pole + neutral miniature circuit breaker.
- 10 A rated current for industrial and commercial applications.
- Z trip characteristic for highly sensitive electronic circuits.
- Thermal and magnetic tripping mechanisms provide dependable protection.
- Current limiting design reduces fault energy.
- DIN rail mounting enables quick installation.
Key Features
- ABB System pro M compact S200 series.
- Model: S203-Z10NA.
- Rated current: 10 A.
- Configuration: 3 protected poles + neutral.
- Z tripping characteristic.
- Thermal overload and magnetic short circuit protection.
- Current limiting technology.
- DIN rail mounting.
- Failsafe bi-directional screw terminals.
- Compatible with ABB auxiliary contacts, shunt trips and undervoltage releases.
Reliable Protection for Sensitive Electrical Circuits
The ABB S203-Z10NA combines thermal overload protection with instantaneous magnetic short circuit protection to safeguard sensitive electrical equipment. The Z tripping characteristic provides rapid operation at relatively low fault currents, making it particularly suitable for electronic control systems, PLCs and semiconductor devices.
As part of ABB's proven System pro M compact range, the S203-Z10NA delivers dependable performance, straightforward installation and long service life across industrial, commercial and OEM electrical installations.
Typical Applications
- PLC and automation systems.
- Electronic control equipment.
- Instrumentation and measurement circuits.
- Industrial control panels.
- Semiconductor protection.
- OEM machinery and specialist electrical installations.
