Siemens Q22020CT2NC Quadplex Miniature Circuit Breaker
- 20A
- 4 Pole
- Plug-On
Siemens
Q22020CT2NC
Quadplex Miniature Circuit Breaker
Brand
Siemens
SKU
Q22020CT2NC
Quantity
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Siemens Q22020CT2NC - 20A Quadplex Miniature Circuit Breaker
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Description
Engineered for residential power distribution, the Siemens Q22020CT2NC quadplex breaker provides four 20A circuits within a two-pole footprint. This plug-on unit features a non-CTL design without a rejection clip. It mounts into older, pre-1968 ITE, Gould, and Siemens non-CTL load centers that accept QT breakers. Rated at 10kAIC, it utilizes thermal-magnetic trip technology.Specifications
| Brand | Siemens |
|---|---|
| Series | QT |
| Amperage | 20A |
| Poles | 4 |
| 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), Older ITE/Gould Panels (Pre-1968) |
| 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 (No Rejection Clip) |
| Standards | HACR, SWD, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-CTL, Common Trip, Insta-Wire |
Product FAQs
6 answersWhat does the "NC" in the Q22020CT2NC catalog number mean?
The "NC" stands for Non-CTL (Circuit Total Limiting). This indicates the breaker is manufactured without a rejection clip, allowing it to be installed in older Siemens, ITE, or Gould load centers that lack CTL rejection features.
Can I use the Q22020CT2NC in a modern Siemens load center?
Generally, no. Modern Siemens load centers are designed for CTL breakers and include physical rejection features on the busbar that prevent the installation of Non-CTL breakers. The Q22020CT2NC is intended for older, pre-1968 panels or specific Non-CTL enclosures.
How are the circuits configured on the Q22020CT2NC quadplex breaker?
This quadplex breaker provides two independent 240V circuits in a two-inch footprint. It features a 2-pole 20A circuit on the inner poles and a separate 2-pole 20A circuit on the outer poles.
Are the inner and outer circuits on the Q22020CT2NC common trip?
Yes, the "CT2" designation indicates that both the inner 20A double-pole and the outer 20A double-pole circuits feature an internal common trip mechanism. If one leg of either 240V circuit overloads, both legs of that specific circuit will trip simultaneously.
Does the Q22020CT2NC require a rejection clip for installation?
No. Because it is a Non-CTL breaker, it does not have a rejection clip. This allows it to plug into any available full-size space in compatible older panels without being blocked by a notched busbar.
Can the Q22020CT2NC replace older ITE or Gould quad breakers?
Yes, this Siemens Non-CTL quad breaker is the direct replacement for older ITE and Gould 20/20A quadplex breakers used in pre-1968 load centers.
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