Phase monitoring relay CM-PVN, width 45mm, monitoring of over- and undervoltage (Umin and Umax adjustable), phase sequence and phase loss, measuring range L1-L2-L3=160-300VAC, on-delay- or off-delay time adjustable 0.1-10s, A1-A2=90-145VAC, 2 c/o (closed circuit principle)
