Siemens Q120DFWG Dual Function Miniature Circuit Breaker
- 20A
- 1 Pole
- Plug-On
Siemens
Q120DFWG
Dual Function Miniature Circuit Breaker
Brand
Siemens
SKU
Q120DFWG
Quantity
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Siemens Q120DFWG - 20A Dual Function Miniature Circuit Breaker
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Description
Built specifically to complement Siemens WireGuide load centers, this 20-amp breaker features a factory-trimmed neutral pigtail that routes cleanly to the neutral bar. The Q120DFWG single-pole breaker accelerates residential wiring jobs by minimizing wire management tasks inside the enclosure. Rated for 10kAIC at 120VAC, it supplies robust combination arc fault and 5mA ground fault protection, complete with self-testing capabilities and visual LED trip indicators.Specifications
| Brand | Siemens |
|---|---|
| Series | QFGA2 |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC |
| Frame Type | Q |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Siemens WireGuide Load Centers |
| Wire Gauge | 14-8 AWG (Cu), 12-8 AWG (Al) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LIG |
| Trip Function | Long-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Fixed |
| Special Classification | Dual Function (AFCI/GFCI) |
|---|---|
| Available Options | Padlock Attachment |
| Accessories | Pre-trimmed Neutral Wire |
| Standards | CSA C22.2 No. 5, UL 1699, UL 489, UL 943 |
| Approval | CSA, HACR, SWD, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, SWD Rated, Self-Test, Visual Trip Indicator |
Product FAQs
6 answersCan I install the Q120DFWG in a standard Siemens ES or PL series load center?
No. The Q120DFWG is specifically designed for Siemens WireGuide load centers. It features a pre-trimmed, shortened neutral wire that will not reach the neutral bar in standard ES, PL, EQ, or Ultimate series panels.
What is the difference between the Q120DFWG and the standard Q120DF?
The Q120DFWG is a WireGuide variant with a shortened, pre-trimmed neutral wire designed to slide directly into the full-length neutral bar of a WireGuide load center. The standard Q120DF features a full-length pigtail neutral for traditional panels.
How does the neutral connection work on this WireGuide breaker?
The Q120DFWG comes with a pre-trimmed neutral wire that slides directly into the neutral bar of a WireGuide load center. It also includes an Oops Loop, which provides a small amount of extra wire in case of over-torquing or minor repositioning.
What type of protection does the Q120DFWG provide?
This dual-function breaker provides both Combination Arc Fault Circuit Interruption (AFCI) and 5mA Class A Ground Fault Circuit Interruption (GFCI) protection in a single device, meeting NEC requirements for areas like kitchens and laundry rooms.
Does the Q120DFWG feature automatic self-testing?
Yes. The breaker performs continuous automatic self-testing of its internal electronics. If it detects a failure in the AFCI or GFCI circuitry, the device will lock out to prevent the circuit from operating without protection.
How can I identify the cause of a trip on the Q120DFWG?
The breaker is equipped with LED trip indicators that illuminate to help electricians quickly diagnose whether the circuit interruption was caused by an arc fault or a ground fault.
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