MONITORING RELAY RHU 220V/240 V

• · RHU is a front panel mounting communicating residual current protection relay.
• · It protects against people direct or indirect contact, property fire hazards and motors.
• · It measures the earth leakage current in an electrical installation via its associated toroid.
• · It trips the associated circuit breaker when the set residual operation current is overrun.
• · It can activate an alarm and a pre-alarm.