Product Description
SCR-20-GFST-TP Lutron Claro Tamper-resistant GFCI Duplex Receptacle, 20-AMP provides continuous self-testing ground-fault protection in a clean designer-style device, ideal for code-compliant residential and commercial installations. This Lutron Claro receptacle combines Class A GFCI safety, internal tamper-resistant shutters, and clear LED status indicators in a durable 20 amp, 125 volt outlet finished in Taupe.
Product Summary
20A self-testing GFCI outlet with tamper-resistant shutters, LED status lights, and reverse-wire safety in a Lutron Claro designer form factor, color Taupe (TP).
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| Brand | Lutron |
| Series | Claro GFCI |
| Model | SCR-20-GFST-TP |
| Amperage | 20A |
| Voltage | 125V AC, 60Hz |
| Protection Type | Class A self-testing GFCI |
| Finish / Color | Taupe (TP) |
Ordering Info
Device type: Tamper-resistant, self-testing GFCI duplex receptacle
Rating: 20A, 125V~ (Class A 4–6 mA trip level)
Mounting: Single-gang electrical box, decorator wallplate (sold separately)
Product Benefits
- Enhances safety with continuous self-testing that monitors internal GFCI electronics and disconnects power if protection is compromised.
- Simplifies code compliance in kitchens, baths, garages, and other wet or damp locations where Class A GFCI protection is required.
- Protects against curious fingers and foreign objects using a permanently installed tamper-resistant shutter mechanism.
- Provides clear visual feedback via green and red LED indicators for power, trip condition, and end-of-life status, reducing troubleshooting time.
Key Features
- Continuous self-test GFCI initiates within seconds and repeats on a continuous cycle to verify protection is active.
- Manual TEST and RESET buttons perform a full system test by simulating a ground fault through the internal electronics and mechanical trip system.
- Reverse-wire safety feature ensures no power is delivered to the face or downstream receptacles if line and load are wired incorrectly.
- LED status indication with green LED for power, solid red LED for trip/ground fault, and flashing red LED for end-of-life alerts.
- Tamper-resistant shutter mechanism built into the receptacle face to help prevent insertion of foreign objects.
- Back and side wire capability with internal back-wiring clamp and guide pocket for quick, secure terminations.
- Designer-style Claro opening matches Lutron Claro and other decorator wallplates for a clean, modern appearance.
- UL and CSA certified Class A GFCI, compliant with NEC, CEC, OSHA, and healthcare facility requirements where applicable.
Specifications
Technical Specifications
| Manufacturer | Lutron Electronics |
| Series / Family | Claro GFCI Tamper Resistant, Self-Testing |
| Model Number | SCR-20-GFST-TP |
| Device Type | Decorator-style tamper-resistant self-testing GFCI duplex receptacle |
| Amperage Rating | 20A |
| Voltage Rating | 125V~ (operating range approximately 102V~ to 132V~) |
| Frequency | 60Hz |
| Trip Level | Class A GFCI, trips at approximately 4–6 mA ground-fault current |
| Trip Time | Nominal trip time of 0.025 seconds |
| Maximum Interrupting Rating | 10,000A |
Physical Specifications
| Face Style | Decorator / designer-style Claro opening |
| Color / Finish | Taupe (TP), compatible with matching Claro wallplates |
| Overall Height | Approximately 4.69 in with Claro wallplate |
| Overall Width | Approximately 2.94 in with Claro wallplate |
| Device Body Depth | Approximately 1.75 in depth into box |
| Mounting | Single-gang electrical box; standard mounting strap |
| Wiring Terminations | Side and back wire with internal clamp and guide pocket |
| Tamper Resistance | Built-in tamper-resistant shutter mechanism |
Performance & Environmental Specifications
| Self-Test Function | Continuous electronic self-testing with diagnostic software; cycles approximately every 30 seconds or less |
| LED Indicators | Green for power, red for trip/ground fault, flashing red for end-of-life condition |
| Operating Temperature | Approximately -35 °C to 66 °C (-30 °F to 150 °F) |
| Relative Humidity | Up to 95% non-condensing |
| Emissions | Compliant for radiated emissions approximately 30–1000 MHz and conducted emissions 150 kHz–30 MHz |
Compliance & Safety
| GFCI Standards | Meets UL 943 Class A and UL 498 requirements for receptacles |
| Agency Listings | UL Listed, CSA Certified, NOM Certified |
| Code Compliance | Compliant with NEC, CEC, OSHA and relevant healthcare provisions (such as NEC 517-18(c)) where GFCI receptacles are permitted |
| Dust Testing | Meets UL 943 dust test performance requirements for reliable operation |
Application Examples
- Residential kitchens, bathrooms, laundry rooms, and utility sinks requiring GFCI protection.
- Garages, basements, outdoor receptacle locations and unfinished spaces where ground-fault protection is mandated.
- Light commercial applications such as offices, retail spaces, hospitality and healthcare facilities.
- Retrofit upgrades from standard duplex outlets to tamper-resistant, self-testing GFCI receptacles for enhanced safety.
- New construction projects using Lutron Claro wallplates and controls for a coordinated designer look.
Installation Tips
- Turn off power at the circuit breaker and verify the circuit is de-energized before beginning any wiring work.
- Identify LINE and LOAD conductors carefully; connect incoming power to the LINE terminals and any downstream protected outlets to the LOAD terminals only if required.
- Maintain proper grounding by bonding the device ground terminal to the circuit equipment grounding conductor and metal box (if present).
- Use the internal back-wiring clamp or side terminals as shown in the wiring diagrams, ensuring copper conductors are fully seated and tightened to the specified torque.
- Leave the yellow LOAD terminal sticker in place if no downstream protection is needed, and cap any unused conductors per local code.
- Test the device after installation by pressing the TEST button to trip the receptacle, then pressing RESET to restore power; repeat this test periodically for ongoing safety.
- Consult a qualified electrician and all applicable electrical codes when installing in critical locations such as healthcare facilities or commercial occupancies.
Frequently Asked Questions
What is the SCR-20-GFST-TP receptacle used for?
The SCR-20-GFST-TP is a Lutron Claro 20 amp, 125 volt tamper-resistant self-testing GFCI duplex receptacle. It is used wherever ground-fault protection is required by code, such as kitchens, bathrooms, garages, basements and other wet or damp locations, while providing a coordinated designer-style appearance with Lutron wallplates.
How does the self-testing feature work?
This receptacle performs automated electronic self-tests at regular intervals, typically every 30 seconds or less. If a critical component fails or the internal diagnostics detect that GFCI protection is lost, the device disconnects power to the receptacle and signals a fault through the LED indicator so the receptacle can be replaced.
What do the LED indicator lights mean?
The green LED shows that power is present and the GFCI is operating normally. A solid red LED indicates a trip or ground-fault condition that has interrupted power, and pressing RESET restores power after the fault is cleared. A flashing red LED typically indicates an end-of-life or internal fault condition, meaning the device should be replaced promptly.
Is this device tamper-resistant?
Yes. The receptacle includes an internal tamper-resistant shutter mechanism. The shutters only open when equal pressure is applied to both hot and neutral slots simultaneously, helping to prevent insertion of foreign objects such as keys or paper clips.
Can I use the LOAD terminals to protect additional outlets?
The SCR-20-GFST-TP includes both LINE and LOAD terminals. Connecting downstream receptacles to the LOAD terminals allows those outlets to share the same GFCI protection. If you do not need downstream protection, leave the factory-applied label over the LOAD terminals in place and cap any unused conductors following local code requirements.
What happens if I accidentally wire the device incorrectly?
The receptacle includes a reverse-wire safety feature. If line and load are miswired, power will not be supplied to the face of the device or to any downstream outlets. This helps prevent the appearance of a powered but unprotected receptacle and makes wiring errors easier to detect during installation.
Is the SCR-20-GFST-TP suitable for commercial or healthcare applications?
The device is UL Listed, CSA Certified and compliant with NEC and other applicable codes, making it appropriate for many commercial and institutional locations where GFCI receptacles are permitted. Always verify project specifications and local code requirements, especially in specialized environments such as healthcare facilities, before installation.
How often should I test the GFCI outlet?
Even though this receptacle continuously self-tests, manual testing is still recommended. Press the TEST button to confirm that power is interrupted and press RESET to restore power at least monthly or as specified by your local electrical authority. Regular testing ensures that the mechanical and electronic components are functioning properly.
