MONITORING RELAY VOLTAGE HRN-43N-UNI

Voltage monitoring relay for comprehensive monitoring of three-phase circuits: phase sequence, phase asymmetry, phase failure. Memory function - return from fault state to normal state by pressing the Reset button on the front panel. Measurement circuit: 3x400V / 230V (50-60Hz). Adjustable Umax: 138-276V. Adjustable Umin: 35-99% of Umax value. Hysteresis adjustable at 5 or 10%. Phase asymmetry adjustable at 5-20% or disabled. Two contact outputs, with the second contact's function selectable (separate / parallel). Fixed (t1) delay of max 200 ms and adjustable (t2) delay (0.1-10s) to eliminate the effect of short voltage spikes and dips. Galvanically isolated supply voltage: 24-240 VAC/DC. Output contacts: 2 x AC 16A 250V AC. 13 module width, DIN rail mounting. This product description is an automated translation of the original Finnish description.