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Siemens Q23025CT2 30/25A Quadplex Miniature Circuit Breaker

  • 30/25A
  • 4 Pole
  • Plug-On
Siemens Q23025CT2
30/25A Quadplex Miniature Circuit Breaker
Brand Siemens
SKU Q23025CT2
Select Item Condition
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  • 30/25A
  • 4 Pole
  • Plug-On

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Siemens Q23025CT2 - 30/25A Quadplex Miniature Circuit Breaker

Siemens Q23025CT2 - 30/25A Quadplex Miniature Circuit Breaker

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$81.20 In Stock

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Description

Built for residential distribution, the Q23025CT2 provides two independent 240V circuits within a two-space footprint. This QT series quadplex features a 30A outer and a 25A inner two-pole circuit, doubling panel density. Equipped with a CTL rejection clip, it installs into modern Siemens and ITE load centers with notched stabs. It replaces the legacy MP23025CT2. The breaker delivers a 10 kAIC rating. Its common trip mechanism ensures both poles of a faulted 240V circuit trip together.

Specifications

Key specifications
Brand Siemens
Series Q
Amperage 30/25A
Poles 4
Mounting Style Plug-On
Voltage 120/240VAC
Phase 1
AIC Rating 10kA @ 120/240VAC
Fit and installation
Frame Type Q
Terminal Type Lugs
For Use With Siemens Load Centers (CTL), ITE Load Centers, Gould Load Centers
Wire Gauge 14-6 AWG (Cu), 12-6 AWG (Al)
Max Wire 6 AWG
Min Wire 14 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed
Standards and features
Special Classification Quadplex
Available Options Padlock Attachment
Standards CSA C22.2 No. 5, HACR, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, Common Trip, Insta-Wire, CTL Rejection

Product FAQs

6 answers
How many panel spaces does the Siemens Q23025CT2 require?

This quadplex breaker requires two standard 1-inch panel spaces to provide two independent 240V circuits, which includes one 30A and one 25A double-pole circuit.

What does the CTL designation mean for this quad breaker?

CTL stands for Circuit Total Limiting. This breaker features a physical rejection clip that prevents installation in panel spaces not designed to accept tandem or quad breakers. It requires a load center with notched bus stabs.

Are the inner and outer circuits on the Q23025CT2 common trip?

Yes, the CT2 designation indicates that both the inner 25A circuit and the outer 30A circuit feature an internal common trip mechanism. If one leg of a 240V circuit faults, both poles for that specific circuit will trip simultaneously.

Can the Siemens Q23025CT2 replace older Murray quad breakers?

Yes, this breaker is the direct replacement for the legacy Murray MP23025CT2 quadplex breaker.

Is the Q23025CT2 rated for HVAC equipment?

Yes, this breaker is HACR rated for use with compatible heating, air conditioning, and refrigeration equipment.

Which load centers are compatible with the Q23025CT2?

This plug-on breaker is designed for use in Siemens, ITE, and Gould load centers that are rated to accept Type QT CTL breakers.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 47 reviews
Reviews Summary
Customers say these circuit breakers arrive quickly and match their specifications perfectly. Many reviews mention success finding hard-to-locate specialty breakers through this supplier. Common feedback includes praise for the accurate product descriptions, reliable shipping, and competitive pricing. While some note occasional stock limitations, users consistently report the breakers fit and function as intended.
Rating
Ratings
47 reviews
  • CG
    Crocefissa G.
    Verified Buyer
    Reviewing
    Siemens Q115 - 15A 1 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/18/26
    Quick delivery and great price.

    The circuit breakers are at a great cost.

  • JB
    Jason B.
    Verified Buyer
    Reviewing
    Siemens Q2150B - 150A 2 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/18/26
    Great experience

    The product was exactly what I needed and it arrived on time.

  • DQ
    Don Q.
    Verified Buyer
    Reviewing
    Siemens Q3100 - 100A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/14/26
    Siemens breaker

    Great customer experience, great prices and fast shipping... Definitely will be buying her again.

  • CS
    Christopher S.
    Verified Buyer
    Reviewing
    Siemens Q260HH - 60A 2 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/12/26
    Siemens 60

    Perfect new condition

  • GS
    George S.
    Verified Buyer
    Reviewing
    Siemens Q2150B - 150A 2 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    3/4/26
    Great service

    Every time I call or go online you have the parts I'm looking for.