SOUTHWIRE Thermostat Wire: 18 AWG Conductor Size, 7 Conductors, 250 ft Overall Lg
The SOUTHWIRE 553070407 is a nonplenum-rated thermostat wire with 18 AWG conductor size, 7 conductors, 250 ft overall length, and 150 V rating. 3G Electric interprets this demand and delivers it across 14 industrial…
SKU 3G-OTH-49025
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Product Description
The SOUTHWIRE 553070407 is a nonplenum-rated thermostat wire with 18 AWG conductor size, 7 conductors, 250 ft overall length, and 150 V rating. 3G Electric interprets this demand and delivers it across 14 industrial departments, with specialist depth in combustion, pumps, and controls as an authorised distributor for brands like Schneider, ABB, Siemens, SKF, Festo, Fluke, Interpump, and FBR.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is Southwire thermostat wire used for?
Southwire thermostat wire connects HVAC thermostats to heating and cooling equipment. The 18 AWG, 7-conductor, 150 V design suits residential and light commercial low-voltage control circuits, including heat pumps, zone valves, and air handlers.
What are the specifications of Southwire 553070407 thermostat wire?
This Southwire thermostat wire has 18 AWG conductors, 7 conductors total, 250 ft overall length, and a 150 V voltage rating. It is nonplenum-rated, making it suitable for standard indoor installations where plenum air-handling spaces are not involved.
Where to buy Southwire thermostat wire worldwide?
3G Electric supplies Southwire thermostat wire worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this 18 AWG, 7-conductor, 250 ft wire.
How to install Southwire nonplenum thermostat wire?
Install Southwire nonplenum thermostat wire in walls or ceilings not used for air handling. Strip 1/2 inch of insulation, connect conductors to thermostat and equipment terminals per wiring diagrams, and avoid sharp bends. Use cable staples to secure without crushing the jacket.
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Common applications for SOUTHWIRESOUTHWIRE Products
3G Electric supplies SOUTHWIRE nonplenum-rated thermostat wires. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















