Automatic Mains Failure Assembly

Automatic Mains Failure (AMF) assembly designed to switch automatically between mains and stand-by generator supplies, biased to mains. The assembly is housed in a wall mounting enclosure affording protection to IP55. Optional stands and crash frames are available for free-standing applications.

Enclosure
Robust sheet steel enclosure of seam welded construction providing protection to IP55. The enclosure incorporates a projecting rain roof, side hinged padlockable door and removable gland plates for incoming and outgoing cables. The enclosure is protected against corrosion by a high quality, outdoor finishing system comprising of a zinc phosphate pre-treatment followed by polyester powder coating, shade Dark Admiralty Grey.
Enclosure dimensions: 881H x 737W x 282D mm.

Equipment
Fitted with 2 no. 4 pole contactors, mechanically and electrically interlocked to prevent simultaneous closure. The contactor ratings are 200A, AC1, and they feed a common set of outgoing terminals. The incoming supplies terminate on to heavy duty terminals and do not terminate directly onto the contactors.

Terminations
Incoming and outgoing terminals are 95mm2, heavy duty, screw type.

Standard Operation
The panel incorporates a Deep Sea DSE0334 electronic module, which controls the contactors, generator start signals, etc. The module can be configured on site and the module display is visible through a window in the main door of the enclosure.