250A 4 Pole Metal Standard Automatic Changeover Switch Mains to Backup IP55

Part Code: ACO250/4M2MSS

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  • M2M Mains to Backup - used where both power supplies are always assumed to be available
  • Motorised switching with manual override
  • All phases are monitored to protect against total power loss, phase failure and voltage variations of the primary supply
  • Adjustable over and under voltage trip delay
  • Electrical and mechanical interlocks between supplies
  • External LED supply healthy indicators with parallel terminals for customer remote indication

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