ABB Residual Current Circuit Breaker with Overload Protection, 20A, 1-Pole, 10 mA Sensitivity, DIN Rail 2CSR275151R0204

ABB 2CSR275151R0204 Residual Current Circuit Breaker with Overload Protection is engineered to deliver advanced safety, reliability, and ease of installation for modern electrical systems in residential and commercial environments. This RCBO combines residual current and overload protection in a single module to safeguard electrical circuits from short-circuit currents, overloads, earth faults, and both direct and indirect contacts.

With a rated current of 20A and 1-pole design, the circuit breaker is ideal for single-phase distribution requirements. It features a high sensitivity of 10 mA, providing rapid detection and interruption of earth leakage currents, thereby minimizing risks of electric shock and fire hazards. The Type C tripping characteristic is suited for varied load types, ensuring stability and dependable operation without nuisance tripping.

Mounting the unit is straightforward thanks to its DIN rail compatibility, making it suitable for use in standard distribution boards and electrical panels. The toggle switch actuator allows for effortless manual reset following fault clearance, and the screw terminals ensure secure and robust wire connections.

The RCBO is built to withstand demanding conditions, offering a breaking capacity of 10kA, suitable for installations requiring robust fault protection. Its compact structure (85 mm high, 69 mm deep, 18 mm wide) conserves panel space while maintaining accessibility and serviceability. The earth leakage protection is of AC type, and the functional blue window provides clear fault indication.

Protection against short-circuit, overload, earth fault, and indirect contact currents. Rated current of 20A with 1-pole configuration for single-phase systems. 10 mA trip sensitivity for immediate earth leakage detection.

Type C tripping for reliable, stable performance under variable loads. DIN rail mount for easy integration into electrical distribution boards. Toggle switch actuator for manual reset after fault resolution. Rated AC voltage at 240V for broad application compatibility.

10kA breaking capacity ensures strong short-circuit protection. Compact and efficient design for space-saving installation.

This RCBO meets CE and RoHS standards, underlining ABB's commitment to quality and compliance with international regulations. Common applications include residential protection, commercial buildings, and environments requiring advanced electrical safety. For further exploration of ABB circuit protection solutions, browse our Residual Current Circuit Breaker category on EnvMart.