Siemens / ITE QTI-2020 20/20A Tandem Miniature Circuit Breaker
- 20/20A
- 1 Pole
- Plug-On
Quantity
Siemens / ITE QTI-2020 - 20/20A Tandem Miniature Circuit Breaker
Re-Certified
Quantity
Description
Engineered for high-density power distribution, this twin 20-amp miniature breaker delivers reliable thermal-magnetic protection for standard residential loads. The plug-on configuration installs into classic Siemens, ITE, and Gould load centers. It acts as a reliable drop-in solution for aging infrastructure, matching the exact physical dimensions of the original hardware. Rated for 10kA interrupting capacity, it features a SWD rating for safely switching fluorescent lighting loads.Specifications
| Brand | Siemens / ITE |
|---|---|
| Part Number | QTI-2020-R |
| Series | QT |
| Amperage | 20/20A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens EQ, Ultimate, PL, ES Load Centers, Gould Load Centers, ITE Load Centers |
| Wire Gauge | 14-8 AWG (Cu), 12-8 AWG (Al) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Special Classification | Tandem |
|---|---|
| Available Options | Padlock Attachment, Handle Tie |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, HACR, SWD, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, SWD Rated, Class CTL, Tandem |
Product FAQs
7 answersWhat load centers are compatible with the QTI-2020 tandem breaker?
This breaker is designed for plug-on installation in Siemens EQ, Ultimate, PL, and ES series load centers. It is also backward compatible with legacy Gould and ITE panels.
Are the QTI-2020 and QT1-2020 the same breaker?
Yes. The QTI-2020 is frequently cataloged as the QT1-2020 or QT12020. These part numbers refer to the exact same 20/20A tandem circuit breaker.
How much panel space does the QTI-2020 require?
As a tandem breaker, it provides two independent 20A circuits while only occupying a single 1-inch pole space in the load center.
Can the QTI-2020 be used for 240V loads or multi-wire branch circuits?
No. Because both circuits in this tandem breaker connect to a single bus stab, they draw from the same phase. It provides two independent 120V circuits and cannot be used for 240V loads or multi-wire branch circuits that share a neutral.
Is the QTI-2020 rated for switching fluorescent lighting and motor loads?
Yes. This breaker is SWD rated for 120V fluorescent lighting applications and HACR rated for use with heating, air conditioning, and refrigeration equipment.
Can I install the QTI-2020 in any Siemens panel slot?
No. Tandem breakers like the QTI-2020 must only be installed in panel slots specifically designed and listed to accept tandem breakers. Check your load center wiring diagram to confirm compatibility and prevent overloading the panel.
Can I substitute a Siemens QP breaker for a QT series breaker?
No. QP breakers are full-size units that require one full inch per pole. QT breakers are half-inch tandem units designed to fit two circuits into a single 1-inch space. They are not physically interchangeable.
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