SOUTHWIRE Thermostat Wire: 18 AWG Conductor Size, 4 Conductors, 250 ft Overall Lg
SKU 3G-OTH-48574
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Frequently Asked Questions
What is Southwire thermostat wire used for?
Southwire thermostat wire connects HVAC thermostats to heating, cooling, and ventilation equipment. The 18 AWG, 4-conductor, 300 V, CL2P-rated cable is suitable for plenum spaces where fire safety is critical, ensuring reliable signal transmission in commercial and residential systems.
What are the specifications of Southwire thermostat wire 555040423?
This Southwire thermostat wire has 18 AWG conductor size, 4 conductors, 250 ft overall length, 300 V voltage rating, and CL2P plenum rating. The manufacturer part number is 555040423. It is designed for low-voltage control circuits in HVAC applications requiring fire-resistant insulation.
Where to buy Southwire thermostat wire worldwide?
3G Electric supplies Southwire thermostat wire worldwide, handling full logistics and customs clearance for international orders. As a global industrial solutions provider, we source and deliver genuine Southwire products to your location. Contact us for pricing and lead time on this 555040423 cable.
How to install Southwire thermostat wire?
Install Southwire thermostat wire by routing it through plenum spaces per local electrical codes, using proper supports and avoiding sharp bends. Strip insulation carefully to expose conductors, and connect to thermostat and HVAC terminals per manufacturer wiring diagrams. Always verify voltage is off before handling.
Used in
Common applications for SOUTHWIRESOUTHWIRE Products
3G Electric supplies SOUTHWIRE plenum-rated thermostat wires. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
