Control relay voltage, phase monitoring, adjustable, restart 1P+N/3P(N) 1 W. Control and monitoring relay for undervoltage and overvoltage in single and three-phase networks (1P+N, 3P+N). Adjustable tripping and switch-on delay with adjustable undervoltage/overvoltage tripping range (Windows function). Monitoring of phase sequence, phase failure and neutral conductor breakage. Signaling via changeover contact and LEDs. Mounting on top hat rail (DIN rail).