Southwire 2557SW0003 Extension Cord 25 Ft 12/3 Awg

Product Description

The SOUTHWIRE 2557SW0003 is a 25-foot, 12/3 AWG STW extension cord rated for 15 amps at 125 volts AC. Built with three conductors and a NEMA 5-15P plug on one end and a single NEMA 5-15R receptacle on the other, this cord is designed for both indoor and outdoor use. The 12-gauge wire handles higher current draws without excessive voltage drop, making it suitable for power tools, compressors, and other demanding equipment on job sites. Electricians, HVAC technicians, and general contractors rely on this gauge and length for reliable temporary power distribution.

This extension cord is intended for use in residential and light commercial settings where a durable, all-weather cord is required. The orange jacket provides high visibility on busy job sites, reducing trip hazards. Its STW-rated thermoplastic insulation resists moisture, abrasion, and general wear, making it well suited for outdoor conditions. Typical applications include powering tools, test equipment, and portable HVAC or plumbing equipment during installation or service work.

Key Features

• 12/3 AWG construction minimizes voltage drop over 25-foot runs under 15-amp loads
• STW-rated thermoplastic jacket rated for indoor and outdoor environments
• NEMA 5-15P plug and single NEMA 5-15R receptacle for standard 125-volt connections
• High-visibility orange jacket for job site safety
• UL Listed, cUL Listed, ETL Listed, and meets OSHA requirements

Compatibility

Designed for use with standard NEMA 5-15 outlets and equipment rated up to 15 amps at 125 volts AC. Suitable for indoor and outdoor applications requiring a general-purpose 25-foot extension cord.

Installation Notes

Extension cords of this type are installed by electricians or qualified trade personnel following NEC guidelines for temporary wiring. Inspect the cord jacket and plug blades for damage before each use and do not operate with a damaged cord. Do not exceed the 15-amp current rating or use this cord as a permanent wiring substitute. Fully uncoil the cord before use under load to prevent heat buildup.