I am perplexed.

I have a 240v line feeding a brand new Marley baseboard heater. It has an integrated T1 style thermostat. I used 12/2 w/gr. ROMEX per Code. Fed from a Cutler Hammer panel, 20 amp twin breaker.

I have the Blk solid hot Line connected to the Blk stranded wire to the Tstat.

I have the Red stranded wire from Tstat connected to the Blk stranded wire feeding the top of the heater tube.

I have the other solid Line (white solid) connected to the black stranded wite feeding the bottom of the heater tube.

My tester light shows voltage at the black and white lines at the heater itself. I also find voltage coming out of the Tstat.

The heater refuses to heat up at all.

I really could use someone's help on this.

Thanks in advance.

Tom in Cape May

Have md26 120 volts double pole thermostat wall unit for hbb1500 baseboard heater
Would like to know howto wire the thermost there,s 2black wires & 2 red wires

Hi Hesster !

The thermostat I'm dealing with is rated 240v, but only has one red and one black wire in it. Often two pole tstats have two and two.

When Tstat has two and two, I know that you connect one hot/line black and the other hot/line white to the black wires. Then the reds get connected one to each black wire on the heater tube.

My Marley baseboard Tstat again is 240v with one red and one black.

Tom

Does your breaker have a bar connecting both sides? If it doesn't, your heater won't work.

Keckerjr- Do you have voltage between the black and the white, or just voltage between each and ground? If you don't have voltage (240) between the black and white, you have the wrong breaker. The bar isn't the essential thing to work, but its lack is a good sign what you have is a breaker meant to give 2 circuits from the same contact. What you need is a double pole breaker with a contact to each buss in the box. They should have the bar connecting the handles.

Hesster, connect the feed black and red to the line side of the thermostat. Connect the black and red that go to the heater to the load side.

Labman (and others who've answered so far... )

Both black and white have volts shown to ground and are on separate, but twinned Cutler Hammer 20 AMP breakers. The use of the new breaker is approved (I was told by the counter guy), for the application.

Each half of the breaker yields 120 v circuit off the panel's hot bus bar. I have 2 other similar breakers feeding separate heaters and they are working out fine. There's no trip connector like is found on standard sized (1 inch wide) double pole breakers.

Any other thouights >>

Tom

Quote:

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Originally Posted by KeepItSimpleStupid

Does your breaker have a bar connecting both sides? If it doesn't, your heater won't work.

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Most times you'd be correct... a connector between both throws would indicate a double pole breaker.

Cutler Hammer came out with "mini" breakwers, each having a direct connection to the bus bar in the panel. Each 1/2 yields 120 volts separately.

Thanks,

Tom

Approved for what? Counter guys may be wrong. Your panel has 2 hot wires coming in, and connect to 2 separate buss bars. To get 240, you must use a double pole breaker with a contact to each buss. Twinned sounds like as I said ''a breaker meant to give 2 circuits from the same contact.'' If your black and white wires are connected to the same contact at the breaker, they have 0 volts between them. Pull the breaker out. If it only has one contact to the buss bars, take it back and get one that has 2 plus a bar connecting the handles. Did you tell the counter man you needed 240 volts?