WELLONG GFCI Replacement Plug 15A 120V 3-Prong — UL-Listed Ground-Fault Protection, 30ms Trip

WELLONG Replacement GFCI Plug is a UL-listed 15A, 120V three-prong safety plug that quickly interrupts power within 0.03 seconds when leakage is detected to help reduce the risk of electric shock.

This compact GFCI (ground-fault circuit interrupter) replacement plug is built to swap in for a standard three-prong cord-end on many household appliances and power tools. It monitors current imbalance between the live and neutral conductors and trips the circuit almost instantly when a fault is found, then allows reset once the hazard is cleared. Designed to meet UL943, UL498 and UL746C standards, it offers a simple field-replaceable option for older cords or devices without built-in GFCI protection.

How does this GFCI plug protect people and equipment?

The WELLONG plug continuously compares current in the live and neutral wires and opens the circuit if a difference exceeding its residual current threshold occurs. That rapid disconnect — within 30 milliseconds — reduces the time you or connected appliances are exposed to dangerous leakage currents. It also supports repeated testing and resetting to confirm ongoing protection.

• Residual current sensitivity: 6 mA for prompt trip on leakage
• Maximum tripping time: ≤ 30 ms to quickly interrupt faults
• Rated for 15 A at 120 V, suitable for most household devices up to 1,800 W
• UL listed to recognized safety standards (UL943, 498, 746C)

Which appliances and tools can I safely use it with?

This replacement plug works with a wide range of home and workshop gear that uses a three-prong cord end. It’s intended for devices where added ground-fault protection is desirable: wet-location equipment, motors, heaters and other items that pose shock risk if insulation or wiring fails. Check appliance ratings and wiring compatibility before installation.

• Common uses: pool pumps, pressure washers, washing machines, electric water heaters
• Workshop tools: drills, sanders, bench equipment (confirm amperage match)
• Salon and bathroom gear: hairdryers and heating appliances (avoid permanent wet submersion)
• Not for use if appliance manufacturer forbids aftermarket cord changes

How do I install and test the WELLONG GFCI plug?

Installation requires basic wiring skills: strip cord conductors, attach live (black), neutral (white) and ground (green) to their labeled terminal screws, then secure the cover. After wiring, always test the device by using the built-in TEST and RESET buttons to confirm correct trip and reset behavior before regular use.

• Wire connections: black = L (live), white = N (neutral), green = E (earth)
• Test procedure: press TEST — indicator goes off; press RESET — indicator lights on
• Power ratings: 120 V AC, 60 Hz, 15 A, 1,800 W maximum
• Durability: designed for thousands of operations per UL endurance tests

What safety certifications and limits should I know?

The unit is UL listed and built to resist high-voltage stress while delivering consistent trip performance. It is not a substitute for a full electrical inspection, and installation should follow local electrical codes. Use only in dry, appropriate environments unless the connected appliance is rated for damp locations.

• Standards: UL943, UL498, UL746C listed
• Voltage withstand: 6,000 V tested for insulation integrity
• Residual current rating: 6 mA sensitivity for human-protective performance
• Not a replacement for fixed GFCI outlets where code requires them

Who this is for: The WELLONG Replacement GFCI Plug is ideal for homeowners, technicians and hobbyists who need to add ground-fault protection to portable appliances or replace a worn three-prong cord end with a certified GFCI device. Choose this model when you want a UL-listed, quick-trip safety upgrade for equipment rated up to 15 amps and 120 volts; if in doubt about wiring or code compliance, consult a licensed electrician.