AMF 400 Event

A 400A three-phase (400V) Automatic Mains Failure (AMF) changeover panel is designed to divert power from your main generator to your standby generator in the event of a power failure.

Technical Information

Mechanically and electronically interlocked AC1 rated contactors. No volt connection for remote Generator start. Auxiliary power supply for Generator battery charging or jacket water heater. 3 Position key switch for Auto, Generator run and Inhibit mains restore.


  • Incomer: 400A 400V 3P+N+E IP67 Appliance Inlet. (Mains and Generator).
  • Outgoing: 400A 400V Powerlocks (inc 16A 1P+N+E Battery Charger Socket)
  • Dimensions H942 x W612 x D495 (mm)
  • Weight - 88kgs

Supply availability neon’s for visual representation of status. Incoming supply adjustable undervolt and time delay relays for setting of individual supply parameters. All Equipment housed in a polyethylene enclosure, with recessed Socket and Switchgear panels for mechanical protection. External brass earth studs. Complete unit mounted within a stainless steel crash frame with forklift pockets.

10mm thick 300-Grade High Density Polyethylene, offering good impact resistance, chemical resistance and high rigidity. Density of 0.96 g/cm³, less than 0.01% moisture absorption, impact strength of 10 kJ/m², service temperature from -50 to +80°C, with greater than 1014Ω surface resistance. IP55 Rated.

All temporary power distribution equipment is manufactured by IDE in the UK and tested to BS 7671 (12 Months certification) and the products used within our distribution systems conform to EN 60309, EN 60947, EN 60529 and have a 12 month warranty.


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