Southwire 2559SW0003 Extension Cord 100 Ft 12/3 Awg

Product Description

The SOUTHWIRE 2559SW0003 is a 100-foot, 12/3 AWG STW-type extension cord rated for 15 amps at 125 volts AC. Built with three conductors and a NEMA 5-15P male plug, it delivers a single NEMA 5-15R outlet at the load end. The orange jacket is designed for high visibility on job sites and construction environments. Electricians, contractors, and maintenance technicians reach for this cord when temporary power is needed at distance from a standard 15-amp, 120-volt circuit. The 12-gauge conductors handle sustained current draws with less voltage drop than lighter-gauge cords over the same run length.

This extension cord is rated for both indoor and outdoor use, making it suitable for construction sites, job trailers, landscape work, and general maintenance applications. The STW jacket rating indicates a thermoplastic outer jacket approved for wet locations, giving it durability in rain-exposed and ground-contact conditions. It meets OSHA job site requirements and carries UL, cUL, and ETL listings, which satisfy inspection and compliance requirements on commercial and residential job sites alike. One receptacle at the cord end keeps the configuration straightforward for single-tool or single-equipment connections.

Key Features

• 12/3 AWG construction reduces voltage drop over the full 100-foot run compared to lighter 14-gauge or 16-gauge cords
• STW-rated thermoplastic jacket approved for wet and outdoor locations
• High-visibility orange jacket for job site safety and easy identification
• NEMA 5-15P plug and NEMA 5-15R receptacle for compatibility with standard 15-amp, 125-volt outlets
• UL Listed, cUL Listed, and ETL Listed — meets OSHA requirements for job site use

Compatibility

Designed for use with standard NEMA 5-15 receptacles on 15-amp, 125-volt branch circuits. Suitable for indoor and outdoor applications per STW cord type rating.

Installation Notes

Extension cords of this type are installed by electricians and general contractors for temporary power distribution. Always verify the connected load does not exceed the 15-amp rating of the cord. Do not coil the cord while in use under heavy load, as heat buildup in a coiled configuration can reduce the effective current capacity. Inspect the jacket and plug blades before each use and remove from service if the outer jacket is cut, abraded, or the plug shows signs of heat damage.