Siemens MP220220CT2 20/20A Quadplex Miniature Circuit Breaker
- 20/20A
- 4 Pole
- Plug-On
Quantity
Siemens MP220220CT2 - 20/20A Quadplex Miniature Circuit Breaker
New
Quantity
Description
The MP220220CT2 is a thermal-magnetic quadplex breaker from the legacy Murray MP-T series, providing two separate 20A, 2-pole circuits in a space-saving unit. Built for residential use, it features common trip functionality on both inner and outer poles. This plug-on breaker installs into Murray and compatible Siemens load centers. It is replaced by the Siemens Q22020CT2 for modern panel upgrades.Specifications
| Brand | Siemens |
|---|---|
| Series | MP |
| Amperage | 20/20A |
| Poles | 4 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | MP |
|---|---|
| Terminal Type | Lugs |
| For Use With | Murray Load Centers, Siemens Load Centers |
| Wire Gauge | 14-8 AWG (Cu), 12-8 AWG (Al) |
| Max Wire | 8 AWG (Cu), 8 AWG (Al) |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Special Classification | Quadplex |
|---|---|
| Available Options | Padlock Attachment |
| Accessories | Common Trip (Factory Configured) |
| Standards | CSA C22.2, HACR, SWD, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Common Trip, HACR Rated |
Product FAQs
6 answersWhat panels are compatible with the Siemens MP220220CT2 quad breaker?
This breaker is designed for use in Murray and Siemens load centers that accept type MP or MH-T plug-on breakers. Always verify compatibility by checking the wiring diagram inside your panel door to ensure quadplex breakers are permitted in the target slots.
Is the Siemens MP220220CT2 the same as the Murray MP220220CT2?
Yes. Siemens acquired Murray and transitioned the Murray MP-T and MH-T breaker lines under the Siemens brand. The Siemens MP220220CT2 is the direct, manufacturer-approved replacement for the legacy Murray version, sharing the same physical and electrical characteristics.
How many panel spaces does the MP220220CT2 quadplex breaker require?
This quadplex breaker requires two standard 1-inch panel spaces. It allows you to install two independent 2-pole 20A circuits in the space normally required for a single 2-pole breaker, making it ideal for maximizing capacity in crowded load centers.
What does the CT2 designation mean on this Siemens quad breaker?
The CT2 suffix indicates that both the inner and outer 20A circuits feature an internal common trip mechanism. This ensures that if an overload or short circuit occurs on one leg of a 240V circuit, both poles of that circuit will trip simultaneously, safely disconnecting power to the connected 240V load.
Can I use the MP220220CT2 in a Square D or Eaton panel?
No. This breaker is strictly UL-listed for use in compatible Siemens and Murray load centers. Installing it in panels from other manufacturers like Square D, Eaton, or GE violates UL listings and can create a fire hazard due to busbar design differences.
Is the MP220220CT2 a CTL or non-CTL breaker?
The MP220220CT2 is a CTL (Circuit Total Limiting) breaker. It features a physical rejection clip and can only be installed in load center slots specifically notched to accept tandem or quadplex breakers. For older pre-1968 panels requiring non-CTL breakers, a different catalog number with an N suffix is required.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 4 reviews.
- JVJulie V.Verified BuyerReviewingSiemens / Murray MP2100 - 100A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars3/5/26on breaker
so far so good on the refurbished breaker
- JFJon F.ReviewingSiemens / Murray MP250 - 50A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars12/17/20Sales
Fantastic group to work with...
- DSDavid S.ReviewingSiemens / Murray MP2100 - 100A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars1/5/20Thank you so much for
Thank you so much for sending me a 100 amp breaker that was in the condition that you said it would be in.With out your breaker I would still be in the dark Thank you David
- RARichard A.ReviewingSiemens / Murray MP2100 - 100A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/13/19Awesome!
Your prices and number of available items to choose from is Awesome!