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Replacing Pushmatic Circuit Breakers

By Dave Rongey - Summary:

One and Two Pole Pushmatic Circuit Breakers: I need to replace Pushmatic UBIP230 Circuit Breakers.

Pushmatic Circuit Breakers

Electrical Question:I need to replace Pushmatic UBIP230 Circuit Breakers.

Any advice would help!

This electrical question came from: Hugh, from Wichita, Kansas.

Dave’s Reply:
Thanks for your electrical question Hugh

Installing Pushmatic Circuit Breakers

Application: Installing or Replacing a Pushmatic Circuit Breaker.
Skill Level: Advanced – Licensed Electrical Contractor, Not Recommended for Homeowners.
Tools Required: Electricians pouch of hand tools, voltage tester and protective safety gear.
Estimated Time: Depends on the make and model of the panel and the condition of the existing electrical circuit breakers and wiring methods.
Precaution: For safety the main circuit breaker should be turned off or any other disconnect means that would deenergize the panel before replacing a circuit breaker, however turning off the main circuit breaker may not deenergize all of the areas of the panel components and wiring. This is an extensive project that requires experience and should be performed by a Licensed Electrical Contractor.
Notice: Making changes to electrical panel or electric circuits should be done according to local and national electrical codes with a permit and be inspected

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MORE ABOUT THIS TOPIC: Circuit Breaker, Electrical Wiring, Pushmatic

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7 Responses to “Replacing Pushmatic Circuit Breakers”
  1. Mit says:

    Hi Dave

    There’s a “lock bar” between the two one-pole circuit breaker that I haven’t figured out whether it can be removed or not. If I can remove this lock bar (it has to be removed completely from the panel) then I can replace two one-pole 240V with one two-pole 240V. To replace the circuit breaker, I tapped the lock bar gently. It slid up far enough for me to remove and install the circuit breaker. I checked the voltage across the bar and it is 240V. I have not checked the voltage at the receptacle yet.
    It is hard to say whether the circuit breaker is the original problem or not, but by replacing it, the problem is solved temporarily. I’ll check the 240V at the output as soon as I can.
    Thank you very much for your help/input.


  2. Dave Rongey says:

    Hi Mit,
    If the original problem was due to a faulty circuit breaker then you really only need to replace the circuit breaker that was bad. Otherwise, if the two 1-pole circuit breakers are tied together then your good to go. As always, it is best to install a 2-pole 240 volt circuit breaker rather than two 1-pole circuit breakers, and if you have the ability to do that I would highly recommend it. Be sure to check the circuit for the 240 volt output.

  3. Mit says:

    Hi Dave
    The two one-pole 30A circuit breaker are side by side at the main (distribution?) panel with the tie bar across. I replaced one on the right side. Should I replace one on the left side also?
    And yes, there’s only the receptacle at the dryer location where the dryer cord is connected.

  4. Dave Rongey says:

    Hi Mit,
    Where are the two circuit breakers located? Is one at the main panel and another at the location of the dryer?
    My point is that in a typical installation for a dryer circuit there is only one circuit breaker located at a distribution panel, and the receptacle at the dryer location where the dryer cord is connected.

  5. Mit says:

    Hi Dave
    It is precisely as you described. They are two one-pole circuit breakers installed side by side with a tie bar across the handle. The circuit breakers are for the 240V dryer. I still don’t see the model of this circuit breaker which is a product of Bulldog Electric, Code No. 4910-0295 25M-12-53 (Instruction for Electrician). I replaced one and it seemed to work (dryer is working without tripping circuit breaker). Now should I replace the old circuit breaker in series with it or it’s ok to have a new circuit breaker and an old one in series ?
    Thanks again for replying

  6. Dave Rongey says:

    Hi Mit,
    Without knowing the exact make and model number of your panel I could not give an accurate answer, and it should be clarified what precisely the Series terminology is referring to. I would think that it has to do with a series configuration where more than one circuit breaker is used for the circuit where two circuit breakers are installed in two locations. The method of installing two 1-pole breakers to be used as a 2-pole 240 volt circuit is legal if a tie bar is installed across the two breaker handles when they are installed side by side and parallel to each other, however due to the style of the Pushmatic circuit breakers that may not be possible, therefore a 2-pole Pushmatic breaker will be required for a 2-pole 240 volt circuit.
    I hope this helps,

  7. Mit says:

    I also have the circuit breaker with two one pole 30A. A note on the replacing circuit breaker had me concerned. It read “DO NOT USE IN SERIES RATED SYSTEMS WITH THOSE PANEL BOARDS SHOWN IN THIS COMPATIBILITY LIST _ PANEL BOARD LIST: SIEMENS, ITE, OR BULLDOG PUSHMATIC MODEL L250-PL14”.
    I looked but did not see where the model is on the circuit breaker panel. Since the original had these switches in series, does it mean that my circuit breaker model is not the L250-PL14 ? I don’t like to assume in this case, hence this post.