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Siemens Q23020NC 30/20A Quadplex Miniature Circuit Breaker
- 30/20A
- 2 Pole
- Plug-On
Siemens
Q23020NC
30/20A Quadplex Miniature Circuit Breaker
Brand
Siemens
SKU
Q23020NC
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Siemens Q23020NC - 30/20A Quadplex Miniature Circuit Breaker
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Description
The Q23020NC is part of Siemens' QT series, offering a space-saving quadplex design. By combining two 30A outer and two 20A inner poles, it maximizes capacity in crowded residential panels. This non-CTL plug-on breaker mounts into two standard spaces. Lacking a rejection clip, it is intended for pre-1968 Siemens and ITE load centers without notched bus stabs. Rated 10 kAIC at 120/240V, the thermal-magnetic unit features a non-common trip configuration for independent 120V branch circuits.Specifications
| Brand | Siemens |
|---|---|
| Series | QT |
| Amperage | 30/20A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | Q |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Load Centers (Non-CTL / Pre-1968) |
| Wire Gauge | 14-6 AWG (Cu/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 |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-CTL, Non-Common Trip, Space Saver |
Product FAQs
8 answersWhat does the "NC" suffix indicate on the Q23020NC?
The "NC" stands for Non-CTL (Circuit Total Limiting). This means the breaker lacks a rejection clip and is designed specifically for older, pre-1968 Siemens and ITE load centers that do not have notched bus stabs.
How many panel spaces does this quadplex breaker require?
The Q23020NC mounts into two standard 1-inch panel spaces, allowing you to fit four independent poles into the space of two standard breakers.
What is the trip configuration of the Q23020NC?
This breaker features a non-common trip configuration. The poles operate independently, making it suitable for individual 120V branch circuits rather than 240V loads that require a common trip mechanism.
Can I install the Q23020NC in a modern Siemens load center?
Generally, no. Because it is a Non-CTL breaker without a rejection clip, it is intended for pre-1968 panels. Modern Siemens panels typically require CTL-rated breakers with rejection features to comply with circuit limits.
What is the difference between the Q23020NC and the Q23020CT2NC?
The Q23020NC has a non-common trip configuration for independent 120V circuits. The Q23020CT2NC features a common trip mechanism, which ties the handles together for use with 240V circuits. Both models are Non-CTL breakers.
How are the 30A and 20A poles arranged on this breaker?
The quadplex design is configured with two 30A outer poles and two 20A inner poles.
Is the Q23020NC compatible with legacy ITE panels?
Yes, this Non-CTL breaker is compatible with older ITE load centers that do not feature notched bus stabs, as well as equivalent legacy Siemens panels.
Does the Q23020NC include a rejection clip?
No, this breaker does not have a rejection clip. It is a Non-CTL design, meaning it will physically fit into any space in a compatible older panel, unlike CTL breakers which are restricted to specific notched stabs to prevent panel overloading.
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