M7A 3Ø DOL Auto Switch
3Ø DOL Auto Switch Single Phase Preventer

M7A 3Ø DOL Auto Switch

Protects 3Ø motors against loss of any one phase. Built from quality approved components and tested before dispatch.

Key Features

  • Adjustable ON delay, monitors 3 phase supply
  • pre-wired models
  • low voltage operation
  • protection in auto and manual

Benefits

  1. Protection: single phasing
  2. reverse phasing
  3. unbalanced supply
  4. stops motor on any fault
  5. on-time delay to avoid immediate start

Technical Specifications

415 V AC 50 Hz
1 NO
5 A 240 V AC resistive
unbalance trip 80 V ±10 V
unbalance delay 3.0 s ±1.0 s
ON delay 30 s ±1.0 s or as required
Auto/Bypass
auto reset
plastic
free mounting
34.75 x 78 x 100 mm