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Siemens P2100 Molded Case Circuit Breaker

  • 100A
  • 2 Pole
  • Bolt-On
Siemens P2100
Molded Case Circuit Breaker
Brand Siemens
SKU P2100
Select Item Condition
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  • 100A
  • 2 Pole
  • Bolt-On

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Siemens P2100 2 Pole Circuit Breaker

Siemens P2100 - 100A 2 Pole Molded Case Circuit Breaker

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$310.56 In Stock

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Description

Rated 10kAIC at 120/240VAC, this 100A two-pole breaker provides reliable thermal-magnetic protection for residential and commercial systems. It features a distinctive push-button mechanism that offers clear visual indication of circuit status. The bolt-on design mounts into legacy Pushmatic load centers originally manufactured by Bulldog, Gould, ITE, and Siemens. Equipped with a common trip function, it ensures both poles disconnect simultaneously during an overload or short circuit.

Specifications

Key specifications
Brand Siemens
Part Number P2100
Series P
Amperage 100A
Poles 2
Mounting Style Bolt-On
Voltage 120/240VAC
Phase 1
AIC Rating 10kA @ 120/240VAC
Fit and installation
Frame Type P
Terminal Type Lugs
For Use With ITE / Siemens Pushmatic Load Centers
Wire Gauge 1-1/0 AWG (Cu/Al)
Max Wire 1/0 AWG
Min Wire 1 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Standards and features
Accessories Load Side Lugs Included
Standards UL 489, CSA C22.2 No. 5
Approval CSA, UL
Temp Rating 40C
Construction Features Common Trip

Product FAQs

7 answers
What load centers are compatible with the Siemens P2100 circuit breaker?

The P2100 is designed specifically for legacy Pushmatic load centers. It fits panels originally manufactured by Bulldog, Gould, ITE, and Siemens.

Can the Siemens P2100 replace older ITE or Bulldog Pushmatic breakers?

Yes, the Siemens P2100 serves as a direct replacement for legacy 100A, 2-pole Pushmatic breakers previously branded under ITE, Bulldog, or Gould.

Is there an aftermarket alternative to the Siemens P2100?

Yes, Connecticut Electric manufactures the UBIP2100, which serves as a direct aftermarket replacement for the 100A 2-pole Pushmatic P2100 breaker.

How does the Pushmatic mechanism operate on the P2100?

Unlike standard toggle breakers, the P2100 uses a push-button mechanism to manually open and close the circuit. This design provides clear visual indication of the breaker status.

How is the P2100 secured inside the panel?

The P2100 utilizes a bolt-on connection, requiring it to be physically screwed into the panel busbar. This provides a secure, low-resistance connection typical of Pushmatic load centers.

What wire sizes are accepted by the terminals on the P2100?

The terminal lugs accept copper or aluminum conductors ranging from 1 AWG to 1/0 AWG. Always verify local codes and apply an approved oxide inhibitor when terminating aluminum wiring.

Does the P2100 provide common trip protection?

Yes, this 2-pole thermal-magnetic breaker features an internal common trip mechanism that ensures both poles disconnect simultaneously during an overload or short circuit event.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 18 reviews
Rating
Ratings
18 reviews
  • GJ
    Gregg J.
    Verified Buyer
    Reviewing
    Siemens PFP3 Filler Plate
    I recommend this product
    Rated 5 out of 5 stars
    8/8/25
    Easy to order and Quick Shipping

    I needed some filler plates for an older breaker panel. Not available at any retail places I could find, thankfully Superbreakers had them. A couple minor issues: they didn't include the size specifications (L x W x D) online, which would have helped confirm they were the right fit; and they included an unrelated picture (along with the right one).

    But the online order processing was easy-to-use and had all the info needed (especially the shipping options/costs, and the return policy). They also stuck to their word about getting it out in 24 hours. It arrived via UPS Ground in a respectful 5 days. They of course fit the panel and all is well.

    Overall, very pleased with the company.

  • MP
    Mike P.
    Flag of United States
    Reviewing
    Siemens P120 - 20A 1 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    2/3/23
    Owner

    Thank you, my breaker came sooner than I thought and it was the correct item

  • DL
    Diana L.
    Flag of United States
    Reviewing
    Siemens P130 - 30A 1 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    7/22/21
    The part was correct,, but

    The part was correct,, but I was shocked when the cheapest (ground) shipping was almost as much as the part that only weighed 8 ounces. The part was $14.03 and the shipping was almost $13.00.

  • CG
    Carlyle G.
    Flag of United States
    Reviewing
    Siemens P1520 - 15/20A Tandem Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    12/8/20
    I am happy with my

    I am happy with my purchase of a new replacement breaker. Will save a lot of work.

  • KD
    Kurt D.
    Flag of United States
    Reviewing
    Siemens P120 - 20A 1 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    5/28/20
    Happy with my Purchase

    This is the 4th time I have used SuperBreakers and have been happy with my purchase every time. I have an old style style system in my house and the company I was using told me the old style breakers were impossible to find and charged me $80 each. Next time I needed one I found SuperBreakers had them for $15 each. I am no longer using that electrical company.