HRN-55 is a voltage monitoring relay for 3-phase networks with fixed levels, monitoring phase sequence, phase failure and voltage limits.
Key features
- Supply = monitored voltage: 3× 400 V (L1, L2, L3)
- Fixed levels: Umax 125 % Un, Umin 75 % Un, hysteresis 2 %
- Monitors phase sequence and phase failure
- Fixed delay t1 500 ms, adjustable delay t2 0.1 – 10 s
- Output: 1× changeover 8 A/AC1
- 1-module DIN rail housing, 90 × 17.6 × 64 mm
