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Siemens Q22030CT 20/30A Triplex Miniature Circuit Breaker

  • 20/30A
  • 4 Pole
  • Plug-On
Siemens Q22030CT
20/30A Triplex Miniature Circuit Breaker
Brand Siemens
SKU Q22030CT
Select Item Condition
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  • 20/30A
  • 4 Pole
  • Plug-On

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Siemens Q22030CT - 20/30A Triplex Miniature Circuit Breaker

Siemens Q22030CT - 20/30A Triplex Miniature Circuit Breaker

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$39.38 In Stock

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Description

Engineered for high-density residential power distribution, this 4-pole triplex breaker combines a 30A double-pole circuit with two 20A single-pole circuits. The efficient design frees up valuable room by fitting three circuits into a two-pole space. This plug-on device is compatible with standard Siemens load centers and replaces discontinued MP22030CT breakers. Rated for 10kAIC at 120/240VAC, it includes HACR certification and a common trip function for the center 30A poles.

Specifications

Key specifications
Brand Siemens
Part Number Q22030CT
Series Q
Amperage 20/30A
Poles 4
Mounting Style Plug-On
Voltage 120/240VAC
Phase 1
AIC Rating 10kA @ 120/240VAC
Fit and installation
Terminal Type Lugs
For Use With Siemens 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 Triplex
Available Options Padlock Attachment
Accessories Lugs Not Included
Standards CSA C22.2 No. 5, HACR, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features Common Trip (Center Pole), HACR Rated, Insta-Wire

Product FAQs

5 answers
Which load centers are compatible with the Siemens Q22030CT?

This breaker is designed for use in Siemens EQ, Siemens Ultimate, ITE, and Gould load centers specifically rated to accept Type QT plug-on breakers. Panels that only accept standard Type QP breakers will not accommodate the notched rejection feature on this unit. Verify your panel's wiring diagram before installation.

How much panel space does the Q22030CT require?

The Q22030CT requires two standard 1-inch panel spaces. By combining two 20A single-pole circuits and one 30A double-pole circuit into a single unit, it allows you to add circuits to a crowded panel without requiring a subpanel.

How are the circuits configured on the Q22030CT breaker?

The breaker features two independent 20A single-pole circuits on the outer poles and one 30A double-pole circuit on the inner poles. The inner 30A circuit includes a common trip function to disconnect both legs simultaneously during a fault.

Does the Q22030CT provide common trip protection for all poles?

No. The inner 30A double-pole circuit features a common trip mechanism to ensure both 240V legs disconnect simultaneously. The two outer 20A single-pole circuits operate independently and do not have a common trip.

What older or discontinued breakers can the Q22030CT replace?

The Q22030CT is a direct replacement for discontinued Murray MP22030CT breakers, as well as older ITE and Gould models with the exact same configuration, provided the panel accepts Type QT 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.