Why Choose the ABB S204M-K40 Miniature Circuit Breaker?
The ABB S204M-K40 is a compact and reliable miniature circuit breaker (MCB) designed to protect electrical circuits against overloads and short circuits in industrial, commercial and control applications. As part of the established ABB System pro M compact S200M series, it combines thermal and electromagnetic protection with a robust DIN-rail-mounted design.
This four-pole circuit breaker features a K tripping characteristic, making it suitable for circuits with higher starting or inrush currents. The S200M range provides dependable overcurrent protection while its modular construction allows straightforward integration into distribution boards and control panels.
With a 40 A rated current, four-pole configuration and AC supply capability, the S204M-K40 is suited to protecting electrical circuits supplying motor, transformer and other inductive equipment where increased starting currents may occur. Its DIN-rail mounting enables convenient installation in modular low-voltage electrical assemblies.
Key Advantages
- Compact miniature circuit breaker designed for electrical circuit protection.
- 40 A rated current suitable for circuits supplying general and inductive loads.
- Four-pole configuration for protection and switching of multi-phase circuits.
- K tripping characteristic suitable for circuits with elevated starting or inrush currents.
- 10 kA rated breaking capacity for specified AC applications.
- 15 kA ultimate short-circuit breaking capacity under specified AC conditions.
- DIN-rail mounting for convenient installation in modular electrical assemblies.
Key Features
- ABB System pro M compact S200M series.
- 40 A rated current.
- Four-pole configuration.
- K tripping characteristic.
- 10 kA rated breaking capacity under specified conditions.
- 15 kA ultimate breaking capacity under specified AC conditions.
- Thermal overload and electromagnetic short-circuit protection.
- DIN-rail mounting for modular distribution equipment.
- Suitable for industrial, commercial, automation and inductive-load applications.
Reliable Circuit Protection for Loads with Elevated Starting Currents
The ABB S204M-K40 protects electrical circuits from sustained overloads and short-circuit faults. Its thermal protection responds to prolonged excessive current, while electromagnetic protection provides rapid interruption during short-circuit conditions.
The K characteristic is designed for circuits where equipment can produce higher starting or inrush currents, making the S204M-K40 suitable for motor, transformer and other inductive applications. Combined with its four-pole construction and modular DIN-rail format, it can be integrated into electrical distribution, automation and control systems.
Typical Applications
- Industrial control panels and electrical cabinets.
- Motor circuits and motor-related distribution.
- Transformer and inductive-load circuits.
- Commercial and building electrical distribution systems.
- Automation and control installations with elevated inrush currents.
- Multi-phase circuits requiring four-pole protection.
