The Q23050 Type QT quadplex breaker maximizes panel capacity by providing one 30A two-pole and one 50A two-pole circuit in just two standard spaces. This plug-on unit installs into Siemens EQ, Ultimate, PL, and ES Series load centers. It is ideal for expanding residential systems and is replaced by the Q23050CT2. Rated for 10kAIC at 120/240VAC, it features non-common trip functionality and CTL rejection. It is also HACR rated for HVAC equipment.
HACR Rated, CTL Rejection, Non-Common Trip, Space Saver
Product FAQs
8 answers
Which electrical panels are compatible with the Siemens Q23050 quadplex breaker?
This QT series breaker is designed for use in Siemens load centers that accept Type QT breakers, including EQ, Ultimate, PL, and ES series panels. Always verify your panel's wiring diagram to ensure it allows for quadplex or tandem breakers.
Can I install the Siemens Q23050 in a GE or Square D panel?
No. Siemens QT breakers are not interchangeable with other brands like GE or Square D. Using this breaker in a non-Siemens panel can void the UL listing and compromise the safety of your electrical system.
How much panel space does the Q23050 quadplex breaker require?
This quadplex breaker provides two independent double-pole circuits (one 30A and one 50A) while occupying only two standard 1-inch panel spaces.
Does the Siemens Q23050 feature CTL rejection?
Yes, this breaker includes a Circuit Total Limiting (CTL) rejection clip. It can only be installed in panel positions specifically notched to accept CTL tandem or quadplex breakers, preventing the overloading of the panel's maximum circuit capacity.
What is the difference between the Siemens Q23050 and the Q23050CT2?
The Q23050 is a standard quadplex breaker with independent trip functionality, while the Q23050CT2 features a common trip mechanism on both the inner and outer pairs. The Q23050CT2 is often used as a direct replacement when common trip functionality is required by local electrical codes.
Can this breaker replace older ITE or Gould quadplex breakers?
Yes. Siemens acquired ITE and Gould, and the current Siemens QT series serves as the direct, UL-listed replacement for legacy ITE and Gould quadplex breakers with matching specifications.
Is the Siemens Q23050 suitable for use with heating and air conditioning equipment?
Yes, this breaker is HACR rated, making it suitable for protecting heating, air conditioning, and refrigeration equipment that requires this specific certification.
How does the thermal-magnetic trip mechanism in the Q23050 protect circuits?
The thermal component responds to prolonged overloads by heating a bimetallic strip that trips the breaker, while the magnetic component provides instantaneous tripping in the event of a severe short circuit.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
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.
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.