Siemens Q23030CT2NC 30/30A Quadplex Miniature Circuit Breaker
- 30/30A
- 4 Pole
- Plug-On
Siemens
Q23030CT2NC
30/30A Quadplex Miniature Circuit Breaker
Brand
Siemens
SKU
Q23030CT2NC
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Siemens Q23030CT2NC - 30/30A Quadplex Miniature Circuit Breaker
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Description
Providing two independent 30A double-pole circuits, this quadplex unit maximizes capacity in existing enclosures. The non-CTL construction omits the standard rejection clip, making it suitable for older ITE, Gould, and Siemens load centers manufactured before 1968. Both the inner and outer pairs feature common trip mechanisms for reliable 240V operation. Rated at 10kAIC, it delivers essential thermal-magnetic protection while saving valuable panel space.Specifications
| Brand | Siemens |
|---|---|
| Series | Q |
| Amperage | 30/30A |
| Poles | 4 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Load Centers (Non-CTL), ITE Load Centers (Non-CTL), Gould Load Centers (Non-CTL) |
| Wire Gauge | 14-6 AWG (Cu), 12-6 AWG (Al) |
| Max Wire | 6 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Special Classification | Quadplex |
|---|---|
| Available Options | Padlock Attachment |
| Accessories | Non-CTL Construction (No Rejection Clip) |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip, Insta-Wire |
Product FAQs
5 answersWhat does the NC suffix mean on the Siemens Q23030CT2NC?
The NC suffix indicates this is a Non-CTL (Non-Circuit Total Limiting) breaker. It is manufactured without a rejection clip, allowing it to be installed in older panels or specific non-CTL load centers that do not have notched bus stabs.
Can I install the Q23030CT2NC in a modern Siemens PL or PN series load center?
No. Modern Siemens load centers are CTL rated and require breakers with a rejection clip, such as the QT series. This Non-CTL breaker is intended strictly for replacement use in older Siemens, ITE, or Gould non-CTL panels.
How are the circuits configured on this 30/30A quadplex breaker?
This breaker provides two independent 2-pole 30A circuits while only occupying two standard 1-inch panel spaces. Both the inner and outer 2-pole circuits feature common trip functionality for 240V applications.
Is the Q23030CT2NC a direct replacement for older ITE or Gould quad breakers?
Yes, this Siemens breaker is the UL listed, direct replacement for obsolete ITE and Gould non-CTL quad breakers with matching 30A and 30A configurations.
Is the Siemens Q23030CT2NC suitable for HVAC equipment?
Yes, this breaker is HACR rated, making it approved for use with heating, air conditioning, and refrigeration equipment that requires a 30A 2-pole circuit.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 47 reviews.
Reviews Summary
Generated by AI from 91 most recent customer reviews
Last updated 8/1/25
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.
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Rating
47 reviews
- CGCrocefissa G.Verified BuyerReviewingSiemens Q115 - 15A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/18/26Quick delivery and great price.
The circuit breakers are at a great cost.
- JBJason B.Verified BuyerReviewingSiemens Q2150B - 150A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/18/26Great experience
The product was exactly what I needed and it arrived on time.
- DQDon Q.Verified BuyerReviewingSiemens Q3100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/14/26Siemens breaker
Great customer experience, great prices and fast shipping... Definitely will be buying her again.
- CSChristopher S.Verified BuyerRated 5 out of 5 stars8/12/26Siemens 60
Perfect new condition
- GSGeorge S.Verified BuyerReviewingSiemens Q2150B - 150A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars3/4/26Great service
Every time I call or go online you have the parts I'm looking for.