I always thought you needed double pole breakers for 240volts, 2x120voltes. The breaker for a 240-volt installation is a double pole breaker because of the two 120-volt hot wires totaling 240 volts. Make sure to connect the ground to the thermostat or wiring box, if available. No, for a number of reasons; code, general safety. I figured you need two poles for 240volt, that's why I was a bit confused to see 240volts on a single pole breaker. $31.09 $ 31. What size transformer do I need? Helping You to Do It Yourself! A two pole breaker is handling 240 volts. "Double pole" circuit breakers are used in this case, which consist of two single circuit breakers whose trip handles are physically tied together. Single pole breakers for 240v heater? I am trying to set up new 240 v baseboard heating in my attic My questions is can I put it through 2 different single pole breakers - each for every phase? A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. 5.0 out of 5 stars based on 1 product rating. If it really is a single pole breaker check the wiring. circuit. AU $2.92 +AU $3.99 postage. 3.8 out of 5 stars 9. Either the pump runs on 240V and is connected to two hots, or it runs on 120V and is connected to hot and neutral. If some 'handy andy' has installed that breaker in one leg of a 240V. How much do single pole breakers cost? They are normally installed in situations where the breaker box is alr… Is it possible to run 240 volts off a single pole? B.S. 1 users rated this 5 out of 5 stars 1. Consider adding your general location to your profile to get relevant responses. The NEC allows tied single pole breakers to be used only only circuits with a neutral connection in NEC 2011 Section 240.15(B) , previously 240.20(B), The inspectors can miss things, or can be played by a trusted electrician, send pictures and questions to your inspector and state your concern, he may be able to re-open the permit. The 10/3 cable for this circuit has 3 conductors and no ground. 09. FREE Shipping by Amazon . I looked in my breaker box to see which brand circuit beakers I have, Square D, when I noticed they say 120/240v 20 amp on them and they seem to be connected to a single pole. Do you carry smart single pole breakers? Is it possible to run 240 volts off a single pole? A single breaker will provide power from either one. Single pole, 20 Amp, 120V type QP Circuit Breaker 10,000 AIC interrupting rating Siemens type QP circuit breakers provide easy plug-in connections in Siemens enclosures and the time saving insta-wire feature Compatible with Siemens PL and ES series load centers Use for overload and short-circuit protection of your electrical system A single pole breaker is typically used with 120-volt circuits, 15-20 amps. (technically - this is not a code question) KISS Posts: 12,510, Reputation: 839. 1 product rating . These breakers control 240-volt circuits that power large appliances, such as electric water heaters, dryers and ranges. item 2 20A CB Circuit Breaker MCB Single Pole 6KA For Switchboards Amp 240v Single Pole 2 - 20A CB Circuit Breaker MCB Single Pole 6KA For Switchboards Amp 240v Single Pole. If I trip one breaker in the pair, would that drop the voltage on the circuit to 120 if they are indeed forming a 240v circuit? Well, single-pole breakers and double-pole breakers differ in the voltage and amperage they provide as well as how they are wired. 5.0. SQUARE D DP-4075 TWIN 20-Amp, Single-Pole Tandem Circuit Breaker 120/240V. See all 110 - All listings for this product. These give two separate 120-volt lines from one panel slot. $3.99. I will have 2-20 amp single pole breakers and 1-30 amp double pole breaker. I looked in my breaker box to see which brand circuit beakers I have, Square D, when I noticed they say 120/240v 20 amp on them and they seem to be connected to a single pole. Double-pole breakers: Provide 240 volts, 20-60 amps and have two hot wires that share one neutral wire. Kostenlose Lieferung für viele Artikel! In Canada the typical person will almost never encounter the 30 amp breaker. 0 users rated this 4 out of 5 stars 0. 4.7 out of 5 stars 161. $12.99. 5. Get it as soon as Mon, Jan 11. Thanks for any help! To get 240V you'll need a double pole breaker. Step 6 Thread the ground wire through the ground bar and run the wire to the end of the 240-volt receptacle in the breaker box. How would the pump get 120V? I have a question about a grow light controller. Write a review. Get free shipping on qualified 120/240 Single Pole Breakers or Buy Online Pick Up in Store today in the Electrical Department. How can I verify that those two should really be tied? Single-pole GFCI breakers with handle ties won't work. Very new. SIEMENS Q22030CT 30 Double Two 20-Amp Single Pole Circuit Breaker, As shown in the image. In the thermostat wiring box, connect the ground wire coming from the circuit breaker to the ground wire leading to the heater. VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. The Home Depot carries Standard Trip, Dual Function (C/AFCI and GFCI), CAFCI and more. Wiring for an Old 30 Amp, 240 Volt Circuit Breaker This is an outdated circuit that may still be used in some situations. Sam I. Electrician. the other 'leg' of that circuit. 2,160 satisfied customers. That way, if either "hot" leg draws too much current, both breakers will trip simultaneously, effectively stopping all voltage to the appliance. The builtin white wire in the ground fault circuit interrupter circuit breaker should be directly connected to the incoming supply neutral bar in the home mains distribution board or it will not work otherwise. I have a double pole 20 breaker on 10-2 wire going to the light controller. The pump is disconnected so I can turn on the circuits individually to check without risk of damage. Buy Schurter Panel Mount TA35 Single Pole Circuit Breaker Switch - 32 V dc, 240 V ac Voltage Rating, 18A Current Rating 4435.0570 or other Thermal Magnetic Circuit Breakers online from RS for next day delivery on your order plus great service and a great price from the largest electronics components 4. How would I go about testing to see if this is true? Thanks in advance for any help.. If so, then yes, it would not be good if the pump only received 120v. To safely protect 240-volt appliances, a circuit breaker must be connected to each of the 120-volt legs. If your under the NEC I gather only double poles are allowed. Ratings and … More posts from the askanelectrician community, Press J to jump to the feed. No. While doing so, I noticed that it appears that the 240v circuit that goes out to my pool pump is attached to two single pole 20 amp breakers with no tie bar. QF260A - Siemens 60 Amp Double Pole 240 Volt GFCI Circuit Breaker Siemens / ITE $124.99 QF260A - Siemens 60a GFCI (Ground Fault) Breaker This Siemens 60 A rated GFCI 2-pole circuit breaker features a self-test function. A double breaker is basically an interconnected set of two single-pole breakers. As electric water heaters, dryers and ranges two separate 120-volt lines from one panel.... 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