Model GTN20
20A Industrial Tamper-Resistant GFCI
20A, 125V industrial-grade GFCI with a nylon face and body, tamper-resistant shutters and the 5-20R configuration. The catalogue specifies no feed-through terminals.
Industrial model: catalogue specifies no feed-through terminals. Conflicting legacy drawings are withheld; request the approved drawing, exact listing scope and enclosure requirements before ordering.
E504391 · August 16, 2022 addendum · confirm current coverage
- Industrial Grade GFCI Outlet
- Supplied UL / cUL documentation: file E504391, report E504391-20210212 (August 16, 2022); confirm current coverage for the ordered model.
- Request applicable patent details for the ordered model.
- PCB designed for Anti vibration;
- Nylon front cover, body and buttons. For generator and lighting applications, confirm the enclosure and installation environment for this non-WR model.
- Special design on PCB board ensure the GFCI Anti high-frequency electromagnetic interference;
- No feed-through terminals — product catalogue page 6.
- Class A GFCI trip protection. Review the model-specific UL 943 documentation and approved instructions.
- Published function: mechanical trip operation with the device powered off. Confirm operation in the approved model instructions.
- Reverse-wiring lockout: no power is delivered to the receptacle face when line-load wiring is reversed.
- Status indicator light reports power and protection status.
- Impact-resistant nylon cover and body.
- Thickened silver-alloy contacts; request temperature-rise test data for the ordered model.
- For applications exposed to gasoline or vibration, request the model-specific resistance test data.
Supplied certificate · E504391 · E504391-20210212 · issued August 16, 2022. Model addenda: PDF pages 2, 4. Confirm current coverage for the selected model.
GTN20 is named in the supplied August 16, 2022 addendum (report E504391-20210212). Confirm current coverage for the ordered configuration.
Specification notes
- The legacy introduction mentions 20A feed-through, but both its industrial feature list and the supplied catalogue state no feed-through terminals. The catalogue is used here. Do not substitute a residential GFCI wiring diagram.
- The legacy model drawing also prints “20A Feed-Through” on the device face, so it is withheld as an installation reference. Request an approved model-specific drawing to confirm dimensions and terminals.
- The August 16, 2022 E504391-20210212 addendum lists GTN15 and GTN20 as tamper-resistant GFCIs with no feed-through. Confirm current listing status and coverage for the ordered configuration.
Technical Parameters
| Model | GTN20 |
|---|---|
| Available finishes | Black |
| Amperage | 20A |
| Rated voltage | 125V AC |
| Working voltage | 102V~132V |
| Trip level | 4mA~6mA <25ms |
| Operating temperature | -35°C to 66°C (-30°F to 150°F) |
| Feed-through terminals | None — product catalogue page 6 |
| Wiring method | Side Wire & Back Wire |
| Wire gauge | #12~#14 AWG Copper Wire |
| NEMA | 5-20R |
| Pole & wire | 2-Pole, 3-Wire |
| Grounding | Self-Grounding |
| Source model designation | GTN20 |
| Published certification | UL/CUL |
| Standard | UL943/UL498/UL1998 |
| Application grade | Industrial Grade |
| Tamper-resistant | Yes |
| Weather-resistant | No |
| Usage | Confirm the approved enclosure and installation environment; non-WR device |
| Material | Face, Nylon material; Body, Nylon material |
| Construction detail 2 | 0.8mm thick high-precision phosphorus bronze |
| Construction detail 3 | 1.2mm thick galvanized steel bracket |
| Construction detail 4 | Silver alloy contacts |
| Construction detail 5 | Coated PC board with Smart chip MCU to protect critical components from moisture |
| Environmental | Flammability UL-94 V1 Rating. |
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