{"title":"Power Cord For Electric Heaters","description":"\u003cp\u003eA power cord for electric heaters takes a beating that standard cords never see — sustained high-amperage draws in freezing barns, dusty job sites, and damp greenhouses. Get the gauge wrong and you're looking at melted insulation or a dead heater halfway through a shift. Get the plug type wrong and you're rewiring on the spot. This page breaks down wire gauge, amperage ratings, NEMA plug configurations, jacket types, voltage drop over long runs, and the NEC code requirements that apply to every professional heating setup you run.\u003c\/p\u003e","products":[{"product_id":"so-power-cord-25-foot-12-4-configuration-fostoria","title":"SO Power Cord for Electric Heaters | 25 Foot | 12\/4 Configuration | Industrial Duty | SO Rated | Fostoria","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThis 25-foot SO power cord delivers reliable electrical connection for industrial electric heaters operating at 240V\/480V in demanding environments.\u003c\/strong\u003e When you're running high-wattage heating equipment in warehouses, construction sites, or manufacturing facilities, standard extension cords fail under the load and environmental stress. The Fostoria GWG311307 SO power cord handles the electrical demands of industrial heaters while resisting oil, weather, and abrasion that destroy lighter-duty cables.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe 12\/4 wire configuration provides four 12-gauge conductors rated for 20-amp continuous duty.\u003c\/strong\u003e This configuration supports both 240V single-phase and 480V three-phase heating applications, giving you flexibility across different electrical systems. The SO jacket rating means this cord meets Service Oil specifications for industrial use, protecting the copper conductors from chemical exposure and mechanical damage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAt 25 feet, this cord gives you the reach needed for portable heater installations without voltage drop concerns.\u003c\/strong\u003e Whether you're heating a construction trailer, warming a warehouse bay, or providing supplemental heat in a shop area, the length works for most single-zone applications while maintaining full power delivery to your heating equipment.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThe GWG311307 power cord meets SOOW specifications with 12 AWG copper conductors in a 4-wire configuration.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eLength: 25 feet\u003c\/li\u003e\n\u003cli\u003eWire gauge: 12 AWG\u003c\/li\u003e\n\u003cli\u003eConductor count: 4 conductors\u003c\/li\u003e\n\u003cli\u003eVoltage rating: 600V maximum\u003c\/li\u003e\n\u003cli\u003eCurrent capacity: 20 amps continuous\u003c\/li\u003e\n\u003cli\u003eTemperature range: -40°F to +194°F\u003c\/li\u003e\n\u003cli\u003eJacket material: SOOW rated rubber\u003c\/li\u003e\n\u003cli\u003eWeight: 15 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIndustrial-grade SO jacket construction provides superior protection against oil, chemicals, and weather exposure.\u003c\/strong\u003e The rubber compound resists cracking in cold temperatures and maintains flexibility across the full -40°F to +194°F operating range.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eSOOW compliant rubber jacket resists oil and chemical exposure\u003c\/li\u003e\n\u003cli\u003e12 AWG copper conductors handle 20-amp continuous loads\u003c\/li\u003e\n\u003cli\u003e4-conductor configuration supports single-phase and three-phase applications\u003c\/li\u003e\n\u003cli\u003e600V rating accommodates industrial electrical systems\u003c\/li\u003e\n\u003cli\u003eFlexible construction maintains workability in cold conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBenefits\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThis power cord eliminates the electrical bottleneck that limits heating performance in industrial applications.\u003c\/strong\u003e Standard extension cords create voltage drop and heat buildup under the electrical loads that industrial heaters require, reducing heating output and creating safety hazards.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eMaintains full voltage delivery across 25-foot run length\u003c\/li\u003e\n\u003cli\u003eHandles continuous 20-amp loads without overheating\u003c\/li\u003e\n\u003cli\u003eResists damage from oil spills and chemical exposure\u003c\/li\u003e\n\u003cli\u003eWorks reliably in temperature extremes from -40°F to +194°F\u003c\/li\u003e\n\u003cli\u003eSupports both 240V and 480V heating equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAdditional Information\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThis power cord is specifically designed for use with Fostoria electric heaters and other industrial heating equipment requiring 20-amp electrical service.\u003c\/strong\u003e The 25-foot length accommodates most portable heater installations while the 12\/4 configuration provides the conductor arrangement needed for industrial heating applications.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eInstallation requires appropriate electrical connections at both ends based on your specific heater model and electrical system configuration.\u003c\/strong\u003e The cord should be connected by qualified electrical personnel familiar with industrial heating equipment and local electrical codes.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe 15-pound weight reflects the heavy-duty construction required for industrial duty cycles.\u003c\/strong\u003e This cord is built for permanent or semi-permanent installations rather than frequent handling and coiling.\u003c\/p\u003e\n\n\u003ch2\u003eWarranty Info\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eFostoria backs this power cord with a standard manufacturer warranty against defects in materials and workmanship.\u003c\/strong\u003e The warranty covers the electrical conductors, insulation, and jacket materials under normal industrial use conditions. Damage from physical abuse, improper installation, or electrical overload is not covered under warranty terms.\u003c\/p\u003e","brand":"Fostoria","offers":[{"title":"Default Title","offer_id":43527208337614,"sku":"GWG311307","price":286.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/5011\/4254\/files\/0318975_fostoria-so-power-cord-4-3_c4357268-155c-4c9b-9263-8a328095d204.jpg?v=1779110694"},{"product_id":"so-power-cord-25-foot-6-4-configuration-fostoria","title":"SO Power Cord for Electric Heaters | 25 Foot | 6\/4 Configuration | Industrial Duty | SO Rated | Fostoria","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThis 25-foot 6\/4 SO power cord connects electric heaters to 220V power sources and handles continuous duty applications in industrial environments. When you're installing permanent electric heating systems in warehouses, workshops, or outdoor job sites, you need power delivery that doesn't fail during peak demand periods. The Fostoria GWG311303 SO power cord delivers exactly that — a heavy-duty electrical connection built for heaters requiring 6\/4 wire configuration and designed to handle the sustained current draw that industrial heating applications demand.\u003c\/p\u003e\n\n\u003cp\u003eWhat sets this power cord apart is its SO rating, which means it's built to withstand oil, moisture, and temperature extremes that destroy standard extension cords. Fostoria engineered this cord specifically for electric heater installations where environmental conditions and continuous operation create challenges for lesser electrical components. Whether you're connecting infrared heaters in a paint booth, unit heaters in a maintenance shop, or radiant heaters on an outdoor construction project, this cord provides reliable power delivery without voltage drop or overheating.\u003c\/p\u003e\n\n\u003cp\u003eThe 6\/4 wire configuration handles the high current requirements of industrial electric heaters without the voltage sag that reduces heating efficiency. At 25 feet, this cord gives you the reach needed for most permanent installations while maintaining the wire gauge necessary for full power delivery. The SO jacket construction resists cuts, abrasion, and chemical exposure that would compromise thinner power cords, making it suitable for the harsh conditions where industrial heaters typically operate.\u003c\/p\u003e\n\n\u003cp\u003eForge Claw distributes Fostoria power cords nationwide because we've seen how proper electrical connections affect heater performance and longevity. Undersized or improperly rated power cords create voltage drops that force heaters to work harder, draw more current, and fail sooner. The GWG311303 eliminates these issues by providing the correct wire gauge and environmental protection for sustained industrial heating applications.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cp\u003eThe GWG311303 power cord provides \u003cstrong\u003e25 feet of 6\/4 SO-rated cable\u003c\/strong\u003e designed for 220V electric heater connections in industrial environments.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eLength:\u003c\/strong\u003e 25 feet\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWire configuration:\u003c\/strong\u003e 6\/4 (6 AWG, 4 conductor)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eJacket type:\u003c\/strong\u003e SO rated (oil resistant, moisture resistant)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600V maximum\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature range:\u003c\/strong\u003e -40°F to +194°F operating\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 15.0 pounds\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAmpacity:\u003c\/strong\u003e 55 amps continuous duty at 75°C\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConductor material:\u003c\/strong\u003e Fine stranded copper\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eJacket color:\u003c\/strong\u003e Black SO rubber\u003c\/p\u003e\n\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cp\u003eThe GWG311303 incorporates \u003cstrong\u003e4 key construction features\u003c\/strong\u003e that ensure reliable power delivery in demanding industrial heating applications.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSO jacket construction\u003c\/strong\u003e resists oil, moisture, and abrasion damage that destroys standard power cords in industrial environments. The rubber compound maintains flexibility in temperature extremes while protecting internal conductors from cuts and chemical exposure.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e6\/4 wire configuration\u003c\/strong\u003e provides 55-amp continuous capacity with 4 conductors for proper grounding and neutral connections. The 6 AWG copper conductors handle high current draw without excessive voltage drop over the 25-foot length.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFine stranded copper conductors\u003c\/strong\u003e maintain flexibility during installation and resist fatigue cracking from vibration or movement. Each conductor uses multiple fine strands rather than solid wire to prevent breakage in applications where the cord experiences handling or repositioning.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e600V insulation rating\u003c\/strong\u003e exceeds typical 220V heater requirements and provides safety margin for electrical surges or fault conditions. The high voltage rating also qualifies this cord for 480V applications where needed.\u003c\/p\u003e\n\n\u003ch2\u003eBenefits\u003c\/h2\u003e\n\u003cp\u003eThe GWG311303 power cord delivers \u003cstrong\u003e3 operational advantages\u003c\/strong\u003e that improve heater performance and reduce maintenance requirements in industrial applications.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eEliminates voltage drop\u003c\/strong\u003e that reduces heater efficiency and increases operating costs. The 6\/4 wire gauge maintains full voltage delivery over 25 feet, ensuring heaters operate at rated capacity and achieve specified BTU output without drawing excess current.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWithstands harsh environments\u003c\/strong\u003e where standard extension cords fail within months of installation. The SO jacket resists cutting from sharp edges, chemical damage from solvents or oils, and UV degradation from outdoor exposure, extending service life in demanding conditions.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSupports continuous operation\u003c\/strong\u003e required by industrial heating applications. The 55-amp continuous rating handles sustained current draw without overheating or insulation breakdown, making it suitable for heaters that run for extended periods during cold weather or process heating requirements.\u003c\/p\u003e\n\n\u003ch2\u003eAdditional Information\u003c\/h2\u003e\n\u003cp\u003eThe GWG311303 power cord weighs \u003cstrong\u003e15.0 pounds\u003c\/strong\u003e and ships via freight carrier due to the heavy-gauge conductors and rubber jacket construction required for industrial duty applications.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eInstallation requirements:\u003c\/strong\u003e Connect to properly sized circuit breaker and NEMA receptacle rated for heater amperage. Verify circuit capacity exceeds heater nameplate current rating before installation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCompatible heater types:\u003c\/strong\u003e Infrared heaters, unit heaters, radiant heaters, and forced air heaters requiring 220V single-phase or 208V three-phase power connections with 6\/4 wire configuration.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eStorage recommendations:\u003c\/strong\u003e Store in dry location away from direct sunlight. Coil loosely to prevent kinking. Inspect jacket for cuts or damage before each use period.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eOperating environment:\u003c\/strong\u003e Suitable for indoor and outdoor use in temperatures from -40°F to +194°F. Resistant to oil, water, and common industrial chemicals.\u003c\/p\u003e\n\n\u003ch2\u003eWarranty Information\u003c\/h2\u003e\n\u003cp\u003eFostoria backs the GWG311303 power cord with \u003cstrong\u003estandard manufacturer warranty\u003c\/strong\u003e covering defects in materials and workmanship under normal industrial use conditions.\u003c\/p\u003e\n\n\u003cp\u003eWarranty coverage includes conductor integrity, jacket durability, and connection reliability when used within specified amperage and environmental limits. Damage from mechanical abuse, chemical exposure beyond SO rating, or electrical overload exceeding 55-amp capacity is not covered under warranty terms.\u003c\/p\u003e\n\n\u003cp\u003eFor warranty claims, retain original purchase documentation and contact Fostoria technical support with product serial number and description of failure mode. Most warranty issues can be resolved through direct replacement when product defect is confirmed.\u003c\/p\u003e\n\n\u003cp\u003eBrowse our selection of industrial power cords and electric heater accessories to find the right electrical connections for your heating system requirements. Forge Claw stocks the complete range of Fostoria power delivery solutions with nationwide shipping included.\u003c\/p\u003e","brand":"Fostoria","offers":[{"title":"Default Title","offer_id":43527208370382,"sku":"GWG311303","price":594.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/5011\/4254\/files\/0318975_fostoria-so-power-cord-4-3_03a56ce7-ee9a-479d-8609-aaaf379c0277.jpg?v=1779110697"}],"url":"https:\/\/forgeclaw.com\/collections\/power-cord-for-electric-heaters.oembed","provider":"Forge Claw","version":"1.0","type":"link"}