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Type SJ, SJO Cord, SJOW Cable, SJOOW Portable Cord (300 V)

Allied Wire & Cable carries an extensive variety of power cable types. A portable cord is a very versatile piece of equipment. It can be used in commercial, industrial, indoor, outdoor and residential applications. 

Our power cable types include SJ, SJO, SJOW, and SJOOW. However, SJOOW has superseded all power cable types. Any SJ, SJO, and SJOW RFQs will be quoted as SJOOW Cable. These portable cords are available for purchase online or you can submit an RFQ for large quantity discounted pricing.

Applications of Power Cable Types SJ, SJO, SJOW, and SJOOW 

  1. Handy tools
  2. Convenient equipment
  3. Compact appliances
  4. Small-scale motors and associated machinery

 Features of Power Cable Types SJ, SJO, SJOW, and SJOOW 

Type SJ Cable features good flexibility in low temperatures, and it is suitable for use in conditions where the cord is not subject to acid, grease, oil, or solvents. While the SJO cord, SJOW cable, and SJOOW Portable Cords have excellent resistance to oil and moisture, good tensile strength, elongation, good aging characteristics, high flexibility, excellent abrasion resistance, water resistant, and also UL certified for indoor or outdoor use.

Construction of Power Cable Types SJ, SJO, SJOW, and SJOOW

SJ and SJO Portable Cord Construction:

They both possess conductors that are fully annealed with stranded bare copper per ASTM B-174, insulation from Premium-grade, color-coded Ethylene Propylene Diene Monomer Rubber (EPDM). However, the Type SJ jacket is a black colored rubber, while the SJO cord jacket is made from black colored neoprene with a temperature of -40°C to +90°C. The type SJ is built for low temperatures.

SJOW Cable and SJOOW Portable Cord Construction:

They both feature stranded bare copper conductor and temperature range of -40°C to +90°C. However, the SJOW cable insulations are CPE Rubber or EPR insulation with suitable fillers, separator, and CPE jacket. While SJOOW portable cord insulation is Premium grade, color coded 90°C EPDM on SJOOW Cable with a black 

The different letters in each type of portable cord designate the characteristics the cord has. The 'S' and 'J' letters in each of these types mean that they are ‘J’unior ‘S’ervice. Junior service simply means that the voltage rating of the cord is 300 volts. A single ‘O’ designates an oil resistant outer jacket, while the double ‘OO’ stands for oil resistant insulation and an oil resistant outer jacket. Finally, the ‘W’ stands for weather and water resistant, and is CSA approved for indoor or outdoor use.

Portable cords are also rated as heavy duty, medium duty and light duty. These designations are given based on the jacket used on the cord. All four types (SJ cable, SJO cable, SJOW cable; and SJOOW cable) are considered heavy duty, due to their thermoset rubber jackets. Portable cord with thermoplastic elastomer jackets are considered medium duty and those with thermoplastic jackets are designated as light duty.

You can tell what type of jacket the cord has by reading the letters as well. A thermoplastic elastomer jacket will have the letter "E", usually after the "S" or "SJ" depending on the service type. A thermoplastic jacket will have a "T" instead of an "E" in the same spot. The absence of an "E" or a "T" means it has a thermoset rubber jacket.