15A Combination USB GFCI Receptacle with Dual USB-A
- Automatic self-test monitoring helps verify GFCI protection status
- UL/cUL listed under the UL 943 Class A GFCI framework with a 5mA ±1mA trip level
- Tamper-resistant AC receptacles support indoor applications that require TR protection under NEC 406.12
- Dual USB-A charging with up to 5V/2.4A from one port and up to 5A total output
- 7 standard colors — White, Black, Ivory, Almond, Grey, Brown, Graphite
- Wall plate included
Available Colors
What Is a 15A USB GFCI Receptacle?
A 15A USB GFCI receptacle is an indoor wall device that combines Class A ground-fault protection with built-in USB charging in one standard 15A receptacle format. On the current UWTST15 page, this model is identified as a 15A, 125V, NEMA 5-15R tamper-resistant self-test GFCI with dual USB-A ports, up to 5V/2.4A from one port, and up to 5A total output across both ports. That makes it suitable for projects that need both code-oriented GFCI protection and convenient in-wall charging without adding bulky power adapters.
Who Should Use This Model
- Contractors sourcing indoor GFCI + USB combo upgrades
- Hotel and hospitality buyers upgrading vanity or guest-use charging points
- Property management teams renovating kitchens, bathrooms, and multi-unit interiors
- Distributors building out indoor combo receptacle inventory with both USB charging and GFCI protection
When to Choose a Different Model
- Choose a standard 15A TR GFCI receptacle when USB charging is not needed.
- Choose a WR GFCI receptacle when the installation requires weather-resistant construction, because this model is explicitly not positioned for WR or outdoor applications.
- Choose a high-power USB-C PD receptacle when the project is aimed at laptop charging rather than standard 5V USB-A charging.
Dual USB-A GFCI Outlet Specifications
| Product Code | UWTST15 |
| Certified Safety | UL, cUL |
| GFCI Type | Self-Test GFCI, Class A GFCI |
| Voltage | 125V |
| Amperage | 15A |
| NEMA | 5-15R |
| USB Rating | 5.0A, 5V DC |
| USB A | 5V DC 2.4A |
| USB A | 5V DC 2.4A |
| Color | White,Ivory,Almond,Black,Grey,Brown,Graphite |
| Finish | Satin |
| Operating Temperature | -35C to 66C(-30F to 150F) |
| Application Sector | Commercial, Multi-Dwelling Unit, Residential |
| Features | Alarm, Self-Test |
| Wiring Method | Back Wire and Side Wire |
| Pole | 2 |
| Wire | 3 |
| Wall Plate Included | Yes |
| Number of Receptacles | 2 |
| Standards & Certifications | UL/CSA, NEMA WD6 |
| Grounding | Self Grounding |
| Trip Level | Class A, 5mA ±1mA |
| Safety Function | Automatic self-test monitoring |
| Tamper Resistant | Yes |
| Weather Resistant | None |
| Own US Patents | Yes |
| Face Material | Thermoplastic |
| Body Material | Thermoplastic |
| Terminal | Brass-Hot, Green-Ground, Silver-Neutral |
| Country of Origin | China |
Frequently Asked Questions (FAQ)
Can I install a USB GFCI in a bathroom or kitchen?
Yes. A combination USB GFCI receptacle can be used in indoor bathrooms, kitchens, and similar locations when the installation requires GFCI protection and the device is installed in accordance with the applicable code and product instructions. This model is presented as an indoor 15A TR self-test GFCI with built-in USB charging for those kinds of indoor upgrade projects.
What does 5A total USB output mean?
A 5A total USB output means the two built-in USB-A ports share up to 5 amps of total 5V DC charging capacity. On this model, each USB-A port is listed at up to 5V DC 2.4A, which makes the device more suitable for dual-device charging than lower-output USB receptacles.
Does the GFCI trip also affect the USB charging section?
This combination device is built as one integrated wall unit, so buyers should treat the USB charging section and the AC GFCI section as part of the same installed device rather than as two unrelated products. For installation and functional expectations, the device should be used according to its listing, wiring diagram, and supplied product instructions.
Does a USB GFCI need more wall-box space than a standard receptacle?
Yes, combination devices that integrate GFCI components and USB charging hardware can require more box space than a standard receptacle. That is why box volume and wiring space should be checked before replacement work begins, especially on remodel projects using older or shallow electrical boxes.
Are the AC outlets on this unit tamper-resistant?
Yes. The AC receptacle portion of this model is tamper-resistant and the page describes it as a TR self-test GFCI. The tamper-resistant shutter feature applies to the AC slots, while the USB charging ports are separate charging interfaces.
Is this combination GFCI USB receptacle weather-resistant?
No. This model is not positioned for WR or outdoor applications. It is an indoor USB GFCI receptacle intended for spaces such as bathrooms, kitchens, hospitality interiors, and apartment upgrades rather than exterior installations.
Does this model include self-testing?
Yes. This receptacle is built as a self-test GFCI, and UL states that UL 943 applies to Class A GFCIs intended for personnel protection. That makes it suitable for buyers who want a current self-test indoor GFCI with built-in USB charging instead of an older non-self-test replacement.
What NEC issue should buyers check when specifying a USB GFCI indoors?
The key code questions are whether the location requires GFCI protection under NEC 210.8 and whether the receptacle needs tamper-resistant protection under NEC 406.12. For a combination device like this, buyers should also confirm that the wall box has adequate space for the device and wiring layout before installation.
15A USB GFCI Receptacle Applications
Hotel Bathroom Vanities
Guests charge phones at the vanity without unplugging the hairdryer. Meets NEC 210.8(B) with integrated USB.
UL · cUL · UL 943 Class A
Airbnb & Short-Term Rentals
One device covers GFCI plus USB charging guests expect. Removes plug-in adapters that get lost between stays.
UL · cUL · Self-Test · USB-A
Student Housing
Dorm kitchenettes need GFCI under NEC 210.8; students need USB at every desk. One device does both.
UL · cUL · NEC 210.8
Master Bedrooms
GFCI coverage near en-suite vanities plus nightstand USB charging from one gang box. Self-test built in.
UL · cUL · Self-Test
Combination GFCI USB Product Overview
5-Step Quick Wiring Guide for GFCI Receptacles
This is a general wiring reference for standard U.S. GFCI receptacle installation. Always turn off power first and verify local code and product-specific instructions before installation.
- Turn Off Power: Switch off the breaker and verify the electrical box is de-energized with a voltage tester.
- Identify LINE and LOAD: Locate the incoming power cable for the LINE terminals. If a second cable feeds downstream receptacles, identify it as LOAD and use it only when downstream GFCI protection is required.
- Connect the LINE Wires: Connect the incoming hot wire to the brass LINE terminal, the incoming neutral wire to the silver LINE terminal, and the ground wire to the green grounding terminal.
- Connect LOAD Only If Needed: If downstream protection is required, connect the outgoing hot wire to the brass LOAD terminal and the outgoing neutral wire to the silver LOAD terminal. Do not reverse LINE and LOAD.
- Mount and Test the GFCI: Fold the wires neatly into the box, mount the receptacle and wall plate, restore power, press RESET, then press TEST to confirm proper operation before resetting again.
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