15A Weather-Resistant GFCI Receptacle (WR & TR)
- 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
- WR and TR construction supports outdoor and public-facing applications that require both weather resistance and tamper-resistant protection
- Standard 15A receptacle configuration with contractor-oriented installation use
- 7 standard colors — White, Black, Ivory, Almond, Grey, Brown, Graphite
- Use with a listed extra-duty in-use cover where required for wet locations
Available Colors
What Is a 15A WR/TR Self-Test GFCI Receptacle?
A self-test 15A weather resistant GFCI receptacle is a wall device built for projects that need Class A ground-fault protection, weather-resistant construction, and tamper-resistant shutters in one standard 15A receptacle format. Your WTST15 product brief identifies this SKU as a 15A GFCI receptacle with TR, WR, and self-test features, offered in seven colors for North America B2B sourcing. That makes it a practical choice for exterior residential and light commercial applications where an indoor-only GFCI would not be the right fit.
Who Should Use This Model
- Contractors sourcing outdoor 15A GFCI replacements
- Distributors building WR / TR GFCI inventory
- Property management buyers handling apartment and condo exterior upgrades
- Project buyers who need a standard 15A outdoor GFCI rather than a 20A T-slot device
When to Choose a Different Model
- Choose a 20A WR GFCI receptacle when the project requires a NEMA 5-20R / 20A device format rather than a standard 15A receptacle.
- Choose an indoor TR GFCI receptacle when the installation does not require weather-resistant construction.
- Choose a non-TR WR GFCI receptacle only when the installation location does not fall within the tamper-resistant receptacle requirements that apply to specified 15A and 20A nonlocking receptacle locations.
15A Weather-Resistant GFCI Specifications
| Product Code | WTST15 |
| Certified Safety | UL, cUL |
| GFCI Type | Self-Test GFCI, Class A GFCI |
| Voltage | 125V |
| Amperage | 15A |
| NEMA | 5-15R |
| 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 | Yes |
| 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)
What is a 15A WR/TR self-test GFCI outlet?
A 15A WR/TR self-test GFCI outlet is a standard 15A wall receptacle that combines Class A ground-fault protection, weather-resistant construction, tamper-resistant shutters, and automatic self-test monitoring. It is used when a project needs an outdoor or moisture-exposed GFCI rather than a standard indoor-only device.
Does a weather-resistant GFCI still need an in-use cover outdoors?
Yes. NEC 406.9(B)(1) requires receptacles in wet locations to be weatherproof whether or not a plug is inserted, and the hood used for that purpose must be listed and identified as extra-duty. A WR receptacle improves outdoor durability, but it does not replace the required cover in wet locations.
Are tamper-resistant shutters still required on some outdoor receptacles?
Yes. NEC 406.12 requires tamper-resistant receptacles for specified 15A and 20A, 125V and 250V nonlocking receptacles in covered locations. When an outdoor installation falls within those covered occupancies or access conditions, the receptacle may need both WR and TR features at the same time.
Can this 15A WR GFCI be used on a 20A branch circuit?
Yes. NEC 210.21(B)(3) permits 15A duplex receptacles on a 20A branch circuit in the appropriate multi-receptacle context. That is why a standard 15A outdoor duplex GFCI is commonly specified on certain 20A circuits, provided the final installation matches the circuit design and adopted code.
What makes a WR GFCI different from a standard indoor GFCI?
A weather-resistant GFCI is built for tougher exposure conditions than a standard indoor device. In your WTST15 brief, WR is tied to outdoor-use durability language such as resistance to sunlight, humidity, and corrosion-related wear, which is why a WR GFCI is the correct starting point for exterior receptacle selection.
Does this model include self-testing?
Yes. This receptacle is built as a self-test GFCI, and UL 943 applies to Class A GFCIs intended for personnel protection. That makes it suitable for buyers who want a current self-test outdoor GFCI instead of an older non-self-test replacement.
Can this receptacle be used outdoors in damp or wet locations?
Yes. This is a weather-resistant GFCI receptacle designed for outdoor, damp, or wet-location applications when it is installed with the required listed weatherproof cover and in accordance with the applicable code and installation conditions. WR construction supports the outdoor rating, but the full installation must still match the enclosure and cover requirements for the location.
Can a weather-resistant outdoor GFCI also be used indoors?
Yes. A WR/TR GFCI can also be used indoors. The weather-resistant feature adds durability for tougher environments, but it does not prevent indoor use where a standard 15A GFCI is otherwise appropriate.
Outdoor 15A GFCI Product Applications
Senior & Accessible Homes
Removes the monthly manual test button that many residents skip. Auto-verifies protection every 3 seconds.
UL · cUL · UL 943 Class A
High-Mount & Concealed
Behind appliances, above cabinets, in ceilings — where pressing TEST monthly is impractical. Meets NEC 210.8.
UL · cUL · NEC 210.8
Rentals & Short-Term Stays
Landlords cannot rely on tenants to test monthly. Self-test auto-verifies and simplifies turnover inspections.
UL · cUL · UL 943 Class A
Commercial Washrooms
Facility teams covering many buildings cannot test every device monthly. Auto-denounces end-of-life via LED.
UL · cUL · NEC 210.8(B)
15A Outdoor WR GFCI 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.
Product Categories
Send the target market, rating, color, quantity, packaging needs, and any TR / WR / OEM requirements before final quotation.
