One-module RCBO Ex9BL20J 1PN C16 30mA

Ex9BL20J Residual Current circuit Breakers with Overload protection are suitable for residential applications. With a width of only one module (18mm), it offers a space-saving solution compared to standard two-module RCBOs. They are based on combination of residual current device with magnetic principle and circuit breaker with thermal overload release and magnetic short circuit current release. The voltage-independent function ensures reliable operation, requiring adequate voltage only when testing the RCBO with the T test button. Magnetic RCBOs should be tested regularly, local law or regulations may apply. It is recommended to test every 6 months in fair environment and every month in heavy conditions.