Technical parameters
♦ Monitoring of 3-phase mains:
- voltage in 2 levels (undervoltage and overvoltage) in range
120-277V (3P+N) or
208-480V (3P3W)
- phase asymmetry (can be switched off)
- phase sequence
- phase failure
♦ Function of second relay (independent/parallel).
♦ Adjustable delay for short peaks for each level independently.
♦ M480: For circuits 3×400V (without neutral).
♦ M277: For circuits 3×400/230V (with neutral).
♦ Galvanically separated supply voltage AC 400V, AC 110V, AC 230V,
AC/DC 24V.
♦ Output contact: 2×changeover 10A/250V AC1
♦ 2-MODULE, DIN rail mounting.
