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The SJ CORD sjo12/3blkstr300vmr is a 12 AWG, 3-conductor stranded copper service cord rated at 300 volts, supplied on a master reel for high-volume job use. Built to SJOW and SJO designations, this cord is engineered for flexible, portable power applications where durability and consistent conductivity are required. The stranded copper construction allows for repeated flexing without conductor fatigue, making it well-suited for tools, equipment drops, and temporary power setups on job sites. Electricians and electrical contractors typically stock this cord from the reel to cut custom lengths as needed.
This service cord is used in residential, commercial, and light industrial electrical work where a flexible, oil-resistant portable cord is required. The SJOW rating indicates suitability for outdoor use with resistance to oil, water, and abrasion, while the SJO rating covers indoor and outdoor applications with oil resistance. It is commonly installed in power drops for hand tools, portable equipment, and extension applications where a 300-volt-rated cord is specified. The master reel format reduces waste and allows jobsite or shop personnel to pull and cut exact lengths per application.
Designed as an OEM-style replacement and general-use service cord for portable power applications requiring 12 AWG 3-conductor 300-volt flexible cord per SJOW or SJO specifications.
Installation and termination of this service cord should be performed by a licensed electrician in accordance with the National Electrical Code (NEC). De-energize all circuits before making any connections. Use appropriate strain relief connectors and cord grips at termination points to prevent conductor damage. Do not exceed the current-carrying capacity rated for 12 AWG conductors under applicable NEC ampacity tables.
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