Block heater plug in issues

Hello mhallam:
I assume this is the plug you are describing? If so, it is a 120V 20A plug. I dont know the watt rating of your block heater, but most heaters south of the 49th parallel are 1500 watt? Watts divided by volts equals amps. 120V/1500W=12.5A
I see your up north so maybe your heater is a higher rating? If you had a 2000W heater it would excede the 15A rating of "standard" household plug and most likely the wire, causing excessive resistance and possibly overheating(potential fire). 120V/2000W=16.7A
JohnP3, 379Longhood and others from CA will be able to give you the best answer...

 

Hello again mhallam:
After some more thought and research, there are two possibilities. One is rated for 120V, the other for 240V. Both are 20A connectors. I suppose there is the possibility of a 240V element? As said before, John, Jim or someone from your area will have a better answer for you. I apologize for not getting both options in first post... David


http://www.stayonline.com/detail.aspx?id=6757
http://www.stayonline.com/detail.aspx?id=6756

 

Instead of 240V I'd bet it is a higher amperage 120V connector, like those used in RV powercords. You might have better luck finding an already made cord at an RV shop.

 

A normal plug with one blade sideways is a 20A plug/socket.

Can't you make one up with parts at Lowes or Home Depot?

 

Yep just like most kitchens, bathrooms, and outdoor plugs. That's why they have that sideways slot, 20amp. If you make one up make sure you use 12 gauge wire.

 

Home Depot or Lowes carries those plugs (electrical). If both slots are straight = 15 Amp and if one of the slots is straight and also has the sideways slot (I-) then it is a 20 Amp socket.

125 V

http://www.lowes.com/pd_353599-1571...l=1&currentURL=?Ntt=electical+plugs&facetInfo=

250 V

http://www.lowes.com/pd_96979-334-4...l=1&currentURL=?Ntt=electical+plugs&facetInfo=


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I have the same problem, I installed a 20 amp cord end but after a while they dont seem to connect properly, the weight of the cord seems to pull the plug down far enough and we have been getting some arc ing , When I got to work this morning the plug was completly burnt. not cool seeing as its a super b fuel hauler. We have 9 T800 Kenworth all with the same problem there must be a solution out there somewhere

 

If its under the door over the step, a simple small block of wood to support the weight should do it. Or gett a longer cord wrap it around side mirror so the cable is hanging down and and not pulling itself out from its own weight.

 

I will try that, thanks. Is it possible to change the socket on the truck to a 20 amp twist lock? wonder if anyone has tried that? I was thinking a plug similar to the one most generators have.