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Disconnect Door for ProLine Enclosures

Bulletin Number:

  • P20
  • Select Item modify product



  • Disconnect Doors provide a means to mount flange-mount disconnects to ProLine Enclosures. Hinged mullion provides unobstructed access to interior, thus easing equipment installation.
  • Disconnect mullion is hinged to provide easy disconnect installation and maximum access to subpanel. Removable door bar is included on disconnect door. A flush handle with defeater operates an internal 3-point latch system on disconnect door and latches to the disconnect mullion. Interlocking is provided from master door to disconnect mullion. The disconnect mullion and disconnect door include 140-degree hinges and are gasketed to maintain enclosure integrity. Steel doors are 14 gauge and painted with RAL 7035 light-gray textured polyester powder.
  • Enclosures with a preferred cutout will accept the disconnect switches listed in the Preferred Cutout Overview section.
  • ProLine enclosures with disconnect doors that have a large cutout provision will accept the following types of flange-mounted disconnect disconnect devices:
  • Allen-Bradley: Large handle to be used with 400A or greater disconnect switches and 600A or greater circuit breakers.
  • Siemens ITE: MAX-FLEX™ FHOHN handle used with MD 800 amp, ND (1200 amp), PD (1600 amp) and RD (2000 amp).
  • Drawings and Technical Publications are available by clicking the "Items" tab. Select your desired Catalog Number and click on the Downloads tab for that particular catalog number.
    Catalog Number V mm H x W mm Cutout Provision Fits Frame A x B mm Z mm
    Catalog Number V mm H x W mm Cutout Provision Fits Frame A x B mm Z mm
    221 1539 x 594 Preferred right-hand 1600 x 600 269
    221 1539 x 794 Preferred right-hand 1600 x 800 269
    321 1739 x 594 Preferred right-hand 1800 x 600 369
    321 1739 x 794 Preferred right-hand 1800 x 800 369
    321 1739 x 994 Preferred right-hand 1800 x 1000 369
    421 1939 x 594 Preferred right-hand 2000 x 600 469
    421 1939 x 794 Preferred right-hand 2000 x 800 469
    421 1939 x 994 Preferred right-hand 2000 x 1000 469