Specifications

29
Stab Assembly
The two-piece power stab housing is made of high strength, non-tracking glass
polyester material and provides a separate, isolated pathway for each phase.
The power cable connection at the plug-in stab is made with a maintenance free
crimp style connection. There is no exposed wiring at the back of the unit
between the disconnecting means and the plug-in stabs.
Unit plug-in power stabs are rated 225 A. The stabs are made of tin-plated copper for a low resistance connection and are
designed to tighten during heavy current surges.
The free-floating and self aligning unit plug-in power stabs are backed by stainless steel spring clips to provide and
maintain a high pressure, four-point connection to the vertical power bus.
Pilot Devices
Pilot devices are housed in a door mounted control station. Each control
station can accommodate up to three 30.5 mm or four 22.5 mm devices.
The control station is easily removed from the unit door using captive
screws. If a control station is removed, closing plates are available to cover
the opening in the unit door and provide isolation, allowing the control
station to stay with the unit when the unit is removed.
Unit Doors
Each unit is provided with a removable door mounted on removable pin type hinges which allow the door to open at least
110 degrees. The unit doors are removable from any location in the MCC without disturbing any other unit doors. The unit
door is fastened to the structure so it can be closed to cover the unit space when the unit is removed. The unit doors are
held closed with ¼-turn latches. Units with overload relays have a low profile external reset button.
Unit Nameplates
Unit nameplates measuring 1.125 in. x 3.375 in. (28.58 mm x 85.73 mm) are available and can accommodate three or four
lines of engraving. The following types of unit nameplates are available:
• Clear cardholders - supplied with blank cards
• Engraved acrylic nameplates - white with black lettering or black with white lettering
• Engraved phenolic nameplates - white with black lettering, black with white lettering or red with white lettering
Nameplates are secured using two steel self-tapping screws. Stainless steel screws are also available.
Pilot Device