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What is this Electrical Interconnect Called

GregBl
GregBl Member Posts: 16
in Oil Heating
Hello,
Does anyone know what the electrical interconnector shown in the attached image is called and where I can buy one? Thank you!

Comments

  • Zman
    Zman Member Posts: 7,611
    edited March 2019
    I would call it a Molex plug. Does it look like it came with the burner? Becket would be a good place to start.
    "If you can't explain it simply, you don't understand it well enough"
    Albert Einstein
  • JohnNY
    JohnNY Member Posts: 3,287
    edited March 2019
    You can replace it with three wire nuts or crimp terminals.
    Contact John "JohnNY" Cataneo, NYC Master Plumber, Lic 1784
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  • HVACNUT
    HVACNUT Member Posts: 6,242
    Yes it's a molex plug.
    Is there a problem with it?
    They usually dont go bad.
    What's going on?
    STEVEusaPA
  • Steamhead
    Steamhead Member Posts: 17,333
    Those are usually found on boilers with swing-out doors. They're actually safety devices, since you have to disconnect the plug before you can open the door. The plugs don't come separately, you have to buy the whole wiring harness.

    What make and model is the boiler? You'll probably find the part number in the manual.
    All Steamed Up, Inc.
    Towson, MD, USA
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  • HVACNUT
    HVACNUT Member Posts: 6,242
    That looks like a Weil McLain GO.
    WM part# for Beckett burner harness is 591-391-850
  • GregBl
    GregBl Member Posts: 16
    Thank you all for the replies. I don't currently have one on my burner and was thinking about adding one to make servicing easier; i.e., ability to remove burner and clean on a bench. I have a Becket burner which is hard wired. Since it's for a specific boiler (I have a Peerless), any reason not to use a locking plug / outlet to accomplish the same thing - plug example: https://www.homedepot.com/p/Legrand-Non-NEMA-14-Amp-125-Volt-480-Volt-Locking-Plug-Black-White-S2348DF/304319449
  • Steamhead
    Steamhead Member Posts: 17,333
    That one may not have enough prongs to work. Does your current wiring setup have two hot wires, a neutral and a ground? What primary control is on your burner?
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
    STEVEusaPA
  • STEVEusaPA
    STEVEusaPA Member Posts: 6,505
    I agree with @Steamhead.
    Even if you have a 3 wire primary control, you'll eventually want to (need to, should) move up to a more advanced control that will require an extra wire.
    I'd get the part @HVACNUT mentioned. You can find it online or at Sid Harvey's.
    On a side note you shouldn't have to bring the burner to a bench to work on it. You could just use a longer piece of MC to remove the burner attached to the front plate to get it out of the way of to properly clean the chamber.
    They also make a molex connector in a box that are on Peerless (I think) boilers.

    There was an error rendering this rich post.

  • HotanCool
    HotanCool Member Posts: 55
    And move that flammable Home Depot box further away!!!

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