Why Choose the ABB S203-K10NA Miniature Circuit Breaker?
The ABB S203-K10NA is a premium 3-pole + neutral miniature circuit breaker (MCB) from the proven ABB System pro M compact S200 series. Designed for dependable overload and short circuit protection, it is ideal for industrial control panels, OEM machinery, commercial switchboards and electrical distribution systems requiring reliable circuit protection.
Featuring a K trip characteristic, the S203-K10NA is specifically designed for circuits with moderate inrush currents, making it an excellent choice for motors, transformers, control circuits and other inductive loads. Its current limiting construction 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-K10NA 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.
- K trip characteristic suited to motors and inductive loads.
- 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-K10NA.
- Rated current: 10 A.
- Configuration: 3 protected poles + neutral.
- K 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 Circuit Protection for Industrial Applications
The ABB S203-K10NA combines thermal overload protection with instantaneous magnetic short circuit protection to safeguard electrical equipment against damaging fault conditions. Its current limiting construction helps reduce the energy released during fault events, extending the service life of connected equipment.
As part of ABB's renowned System pro M compact range, the S203-K10NA provides dependable performance, straightforward installation and long-term reliability for industrial, commercial and OEM electrical installations.
Typical Applications
- Industrial control panels.
- Motor control circuits.
- OEM machinery.
- Automation systems.
- Commercial switchboards.
- Electrical distribution systems.
