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Electrical Interlock

Bulletin Number:

  • P20DC
  • Material:

  • Steel
  • Industry Standards:

    UL Component Recognized CSA Certified
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    Applications:

  • Provides positive internal safety lockout on electrical enclosures while the equipment is energized. Catalog numbers AE K115, AE K230 and AE K460 are used with standard Hoffman door latching mechanisms. When energized, these interlocks prevent the door handle from being turned to open the door. The interlock fits either clockwise or counterclockwise handles in the following enclosures: 1. All two-door Type 4 and 12 enclosures 2. All Type 4X with 3-point latch enclosures 3. Free-stand Type 12 enclosures 4. All single-door Type 12 enclosures with latch kits installedpe 12 enclosures 4. Larger sizes of junction boxes 5. Type 1 and large Type 1 enclosures The aforementioned interlocks also fit in most Hoffman custom enclosures and boxes which have doors or covers hinged similar to doors or covers on the preceding enclosures.
  • The above interlocks will fit the following enclosures, but modifications are required. Consult the factory for more information. 1. Two-Door Enclosures for Flange-Mounted Disconnects, Type 12 2. Heavy Duty Free-Stand Enclosures for Flange-Mounted Disconnects, Type 12 3. Modular Enclosures for Flange-Mounted Disconnects, Type 12 4. Multi-Door Enclosures, Type 12
  • The above interlocks also fit in most Hoffman custom enclosures and boxes which have doors or covers hinged similar to doors or covers on the preceding enclosures.
  • The interlocks will also fit most Hoffman custom enclosures with door latching mechanisms similar to the mechanisms used on the preceding enclosures. Non-NDH style electrical interlocks will not fit Concept Enclosures or Bulletin A25 and A26 Enclosures. Interlocks are not designed to be used in place of the standard door or cover latch. Catalog numbers AE K115NDH, AE K230NDH and AE K460NDH are designed to be used on some Hoffman enclosures and boxes which have exterior latching only. When energized, these interlocks will prevent the enclosure door from being opened. They fit on the door or cover of the following enclosures: 1. One-door Type 4 and 4X enclosures 2. Two-door Type 4 and 4X enclosures 3. One-door Type 12 enclosures 4. Larger sizes of junction boxes 5. Type 1 and large Type 1 enclosures
  • Installation: Interlock mounts on bracket attached to door bar on inside of enclosure door.
  • Specifications:

  • Rugged steel construction and plated finish. Solenoids are rated for continuous duty and will stand up under heavy industrial use.
  • Packaged complete with a solenoid assembly, mounting bracket and instructions for field installation. Door handles and latching mechanisms are not included.
  • 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 A @ 120 V/60 Hz Normal Inrush A @ 240 V/60 Hz Normal Inrush A @ 480 V/60 Hz Normal Inrush A @ 110 V/50 Hz Normal Inrush A @ 220 V/50 Hz Normal Inrush A @ 440 V/50 Hz Normal Inrush
    Catalog Number A @ 120 V/60 Hz Normal Inrush A @ 240 V/60 Hz Normal Inrush A @ 480 V/60 Hz Normal Inrush A @ 110 V/50 Hz Normal Inrush A @ 220 V/50 Hz Normal Inrush A @ 440 V/50 Hz Normal Inrush
    .100/.63 --- --- .120/.69 --- ---
    --- .050/.32 --- --- .060/.35 ---
    --- --- .025/.16 --- --- .030/.18