Inline Auto GFCI Extension Cord Outdoor SJTW Heavy Duty Nema 5-15P Plug

Inline Auto GFCI Extension Cord – SJTW Outdoor Heavy Duty NEMA 5-15P Plug: Engineered Life-Safety for 15A/125V Industrial Environments

Eliminate ground-fault risks and ensure worksite compliance with our robust Inline Auto GFCI Extension Cord. This UL-listed unit delivers 15A/125V power with integrated 5mA Class A GFCI protection, featuring a heavy-duty 14/3 SJTW oil- and water-resistant cable, a sealed NEMA 3R housing, and a standard NEMA 5-15R receptacle. Built in our ISO-audited facility with 100% functional testing, it provides a certified, plug-and-play safety solution for demanding outdoor and industrial applications.

Why Choose Our Inline Auto GFCI Cord?

Worksite electrical safety is non-negotiable. Our cord directly solves the core business problem of protecting personnel and equipment from shock hazards in wet or damp locations, while addressing procurement needs for reliable, code-compliant, and durable product performance.

Certified, Fail-Safe GFCI Protection

The auto-reset GFCI module with certified, tripping in under 25 milliseconds when a ground-fault current of 5mA is detected. Its "trip-free" mechanism prevents bypassing the safety feature, and built-in End-of-Life (EOL) circuitry disables the unit if internal protection fails, ensuring safety is never compromised.

Ruggedized Construction for Harsh Conditions

The cold-flex, sunlight-resistant SJTW jacket withstands abrasion, oil, and water exposure. The sealed, high-impact GFCI housing (NEMA 3R rating) prevents moisture and dust ingress, while reinforced strain reliefs at all connection points protect against pull-out and wire fatigue, extending service life on active job sites.

Operational Clarity & Efficiency

The integrated LED indicator provides instant visual status: steady green (power on/safe), red (tripped/fault). The auto-reset function restores power automatically after a transient fault is cleared, minimizing unnecessary downtime without requiring manual intervention at the cord.

Complete Product Specifications

Professional Applications You Can Trust

Critical for commercial construction, roofing, and exterior renovation crews. It safely powers high-demand equipment like tile saws, hammer drills, and portable lighting systems in wet conditions, ensuring compliance with OSHA 1926.404(b)(1) for GFCI use on construction sites and protecting against liability from electrical incidents.

Ideal for facility management, landscaping, and municipal work. This cord provides reliable, protected power for industrial pressure washers, lawn equipment, parking lot light maintenance, and temporary power at outdoor public events, safeguarding both workers and the public in environments where moisture is a constant factor.

Advanced Safety Features

The GFCI module employs a sophisticated electronic monitoring circuit that compares current flow in the hot and neutral lines. Any imbalance as low as 5mA, indicating current leakage to ground (e.g., through a person), triggers an instantaneous trip. The unit is subjected to a 25,000-cycle mechanical life test and validated for correct operation at 0°C to ensure reliability in cold-weather startups.

Each cord undergoes a final production "trip test" with a calibrated GFCI tester to verify sensitivity and speed. The robust internal design includes MOVs (Metal Oxide Varistors) for transient voltage suppression and a thermal cutoff to protect against overheating, offering layered safety beyond basic GFCI function.

Manufacturing Excellence

Produced on a dedicated assembly line with traceable, certified components. Our quality protocol includes 100% Hi-Pot testing (1500V AC) of the cord set, followed by a functional GFCI trip test simulating a 5mA fault. Every module serial number is logged against test results. We use lead-free, RoHS-compliant solder and materials, with full documentation for audit and compliance purposes.

Frequently Asked Questions

Q: Is this cord waterproof? Can the outlet get wet?

A: The cord jacket and sealed GFCI housing are water-resistant (NEMA 3R), designed to withstand rain and wet conditions. The NEMA 5-15R outlet itself is not waterproof when in use; it should be positioned in a sheltered or elevated location, or used with a weatherproof outlet cover, to prevent direct water ingress into the receptacle openings.

Q: How does the auto-reset feature work? Is it safe?

A> The auto-reset circuit monitors the line after a trip. Once the fault condition is removed and normal, balanced current flow is detected for a preset period (typically 2-3 minutes), it automatically restores power. This design is "trip-free," meaning it will not reset if the fault persists, ensuring safety. An LED alerts the user to the trip event.

Q: What is the advantage of 14/3 SJTW over a standard 16/3 cord?

A: 14AWG wire has a larger diameter than 16AWG, resulting in lower electrical resistance. Over long distances (50-100 ft), this minimizes voltage drop, ensuring tools receive full power and run efficiently without overheating the cord. The SJTW jacket is far more durable and oil-resistant than standard vinyl.

Q: Can we get these with custom branding or as part of a safety kit?

A: Yes. We offer OEM/ODM services including custom imprinting on the housing, custom lengths and colors, and bundling into complete site safety kits with other PPE. We provide tailored quotes for bulk orders and dedicated B2B account management.

Custom Solutions for Your Business

We develop specialized GFCI cord solutions to meet unique operational needs. Modifications include integrated LED work lights on the housing, locking-type connectors (NEMA L5-15P/L5-15R), higher amperage ratings (20A), custom cable lengths up to 150 ft, and configurations for specific international markets. Our engineering support guides you from prototype validation to production, ensuring the final product aligns with your safety specifications and delivery timeline.

Contact Us

Ready to discuss your Inline Auto GFCI Extension Cord requirements? contact us at liz@szkuncan.net for technical data sheets, competitive volume pricing, and to arrange a sample for your safety compliance evaluation.