Why Choose the ABB S204M-K40UC Miniature Circuit Breaker?
The ABB S204M-K40UC is a four-pole miniature circuit breaker (MCB) designed to provide reliable overload and short-circuit protection for AC and DC electrical installations. As part of the ABB System pro M compact S200M series, it combines flexible universal-current operation with compact DIN-rail installation for industrial and commercial electrical systems.
The S200M UC range is designed for applications requiring circuit protection across both alternating and direct current systems. Its K tripping characteristic is suited to circuits with higher inrush currents, helping accommodate demanding loads such as motors, transformers and other industrial equipment with elevated starting currents.
With a 40 A rated current, four-pole configuration and 10 kA rated breaking capacity, the S204M-K40UC provides dependable circuit protection in a compact modular format for control panels, distribution boards and electrical installations.
Key Advantages
- Compact four-pole miniature circuit breaker for AC/DC applications.
- 40 A rated current for reliable protection of appropriately rated circuits.
- K tripping characteristic for circuits with higher inrush currents.
- 10 kA rated breaking capacity for effective short-circuit protection.
- Suitable for both AC and DC electrical systems.
- Practical DIN-rail mounting for control panels and distribution boards.
- Suitable for motor-control, transformer and industrial load applications where higher starting currents occur.
Key Features
- ABB System pro M compact S200M series.
- 4-pole configuration.
- 40 A rated current.
- K tripping characteristic.
- 10 kA rated breaking capacity.
- UC version suitable for AC and DC circuits.
- Compact modular construction for electrical distribution and control applications.
- Clear contact position indication for straightforward circuit status identification.
- DIN-rail mounting for fast and secure installation.
- Compatible with ABB System pro M compact accessory solutions.
Reliable AC and DC Circuit Protection
The ABB S204M-K40UC provides dependable protection for alternating and direct current circuits while retaining the compact modular design of the System pro M compact S200M range. The UC configuration enables use across AC and DC electrical systems within the specified ratings.
Its K tripping characteristic is particularly suitable for circuits where higher inrush currents can occur during equipment starting. This makes the S204M-K40UC appropriate for motor-control circuits, transformers and other industrial loads, while the 10 kA breaking capacity provides effective short-circuit interruption within the specified application conditions.
Typical Applications
- Industrial control panels and electrical distribution boards.
- AC and DC control circuits.
- Motor-control circuits with higher starting currents.
- Transformer protection and control applications.
- Industrial automation and machinery circuits.
- Electrical installations with loads that generate higher inrush currents.
- Auxiliary and general industrial electrical circuits.
