2CSR275180R2207 ABB DS201MK20A100 RCBO 1P+N K20 Type A 100 mA

Why Choose the ABB DS201MK20A100 RCBO?

The ABB DS201MK20A100 is a compact 1P+N residual current circuit breaker with overcurrent protection (RCBO) designed to protect single-phase electrical circuits against overloads, short circuits and residual earth fault currents. With ABB order code 2CSR275180R2207, it forms part of the established ABB DS200 / DS201 M RCBO range for residential, commercial and industrial electrical distribution applications.

Combining overcurrent and residual current protection within a single modular device, the DS201 M K20 A100 helps simplify distribution board design while providing coordinated circuit protection. Its Type A residual current detection responds to sinusoidal alternating and pulsating DC residual currents, while the K tripping characteristic is intended for circuits where higher starting or inrush currents can occur.

With a rated current of 20 A and a 100 mA rated residual operating current, the DS201MK20A100 provides combined protection for suitable single-phase circuits. Its compact 1P+N arrangement and DIN rail construction make it a practical solution for modular electrical distribution systems where Type A residual current protection and a K-curve characteristic are required.

Key Advantages

• Combined overload, short-circuit and residual current protection in one RCBO.
• 20 A rated current for suitable single-phase electrical circuits.
• 100 mA rated residual operating current for residual current protection.
• Type A residual current detection for sinusoidal AC and pulsating DC residual currents.
• K tripping characteristic suitable for appropriate circuits with higher starting or inrush currents.
• 1P+N configuration provides compact switching and circuit protection.
• Combines two protection functions within a single modular device.
• DIN rail construction supports straightforward integration into modular distribution boards.

Key Features

• ABB DS201 M RCBO series.
• 20 A rated current.
• 100 mA rated residual operating current.
• 1P+N pole configuration.
• Type A residual current protection.
• K-curve tripping characteristic.
• Protection against overload and short-circuit conditions.
• Protection against applicable residual earth fault currents.
• Integrated test function for checking residual current protection operation.
• DIN rail mounting for modular electrical distribution boards.

Reliable Combined Circuit Protection

RCBOs such as the ABB DS201MK20A100 combine residual current and overcurrent protection within one modular device. The overcurrent section responds to overload and short-circuit conditions, while the Type A residual current function detects both sinusoidal alternating and pulsating DC earth fault currents, providing broader residual current detection than a Type AC device.

The DS201 M range provides compact protection for single-phase electrical distribution circuits. The DS201MK20A100 combines a 20 A K-curve overcurrent characteristic with 100 mA Type A residual current sensitivity, making it suitable for appropriately designed circuits where equipment starting characteristics require a K-curve protective device.

Typical Applications

• Commercial electrical distribution systems.
• Industrial single-phase electrical circuits.
• Control and automation panels.
• Circuits with equipment exhibiting higher starting or inrush currents where a K-curve characteristic is appropriate.
• Auxiliary electrical circuits and machinery-related distribution.
• Circuits supplying suitable electronic equipment capable of producing pulsating DC residual currents.
• Applications requiring combined overcurrent and 100 mA Type A residual current protection.