Skip to main content
Expedited shipping available at checkout

Siemens Q23050CT2 30/50A Quadplex Miniature Circuit Breaker

  • 30/50A
  • 2 Pole
  • Plug-On
Siemens Q23050CT2
30/50A Quadplex Miniature Circuit Breaker
Brand Siemens
SKU Q23050CT2
Select Item Condition
Earn 57 SuperPoints
  • 30/50A
  • 2 Pole
  • Plug-On

Quantity

Bulk Pricing
Send your parts list for a volume quote.
Siemens Q23050CT2 - 30/50A Quadplex Miniature Circuit Breaker

Siemens Q23050CT2 - 30/50A Quadplex Miniature Circuit Breaker

New

$57.42 In Stock

Quantity

Description

Designed to maximize capacity in residential panels, this 30/50A quadplex breaker provides one 30A double-pole and one 50A double-pole circuit in just two panel spaces. It installs into Siemens EQ, Ultimate, PL, and ES series load centers that accept QT type breakers. Serving as a replacement for the older Q23050, it features common trip mechanisms on both the inner and outer pairs for safe 240V operation. The 10kAIC rated unit is HACR certified for HVAC applications.

Specifications

Key specifications
Brand Siemens
Series QT
Amperage 30/50A
Poles 2
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, EQ Load Centers, Ultimate Load Centers, PL Series Load Centers, ES Series Load Centers
Wire Gauge 30A: 14-6 AWG (Cu/Al), 50A: 8-6 AWG (Cu) / 8-4 AWG (Al)
Max Wire 6 AWG (Cu), 4 AWG (Al)
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
Accessories Common Trip (Inner Pair), Common Trip (Outer Pair)
Standards CSA C22.2 No. 5, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features Space Saver, HACR Rated, Common Trip

Product FAQs

7 answers
Which load centers are compatible with the Q23050CT2 quadplex breaker?

This breaker is designed for use in Siemens PL, ES, EQ, and Ultimate series load centers that are rated to accept Type QT space-saving breakers.

How many panel spaces does the Q23050CT2 require?

Despite providing two independent 240V circuits, this quadplex breaker only requires two standard 1-inch panel spaces, making it ideal for maximizing capacity in crowded panels.

Does the Q23050CT2 feature a rejection clip?

Yes, this is a Class CTL (Circuit Total Limiting) breaker equipped with a rejection clip. It can only be installed in panel slots specifically notched to accept tandem or quadplex breakers.

What does the CT2 designation mean on this breaker?

The CT2 suffix indicates that both the inner and outer pairs of poles feature an internal common trip mechanism. If a fault occurs on one leg of either the 30A or 50A circuit, it will trip both poles of that respective circuit simultaneously.

Is the Siemens Q23050CT2 suitable for HVAC equipment?

Yes, this breaker is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment that requires a 30A or 50A 240V circuit.

Can the Q23050CT2 replace older Siemens quadplex breakers?

Yes, the Q23050CT2 serves as a direct replacement for the older Q23050 model. It upgrades the installation by providing common trip mechanisms on both the 30A and 50A circuits for safe 240V operation.

How are the circuits configured on this quadplex breaker?

The Q23050CT2 combines two independent double-pole circuits into a single unit. It provides one 30A 240V circuit and one 50A 240V circuit, allowing you to feed two separate 240V loads from just two panel spaces.

SuperClub

Join free. Get 500 SuperPoints.

Earn points on eligible purchases and redeem them at checkout.

100 SuperPoints = $1 off.

Warranties

60-Day Warranty

Your purchase includes 60 days of SuperBreakers warranty coverage.

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.

Read our full shipping policy

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.