Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
SOUTHWIRE Thermostat Wire: 18 AWG Conductor Size, 3 Conductors, 50 ft Overall Lg - Nonplenum-Rated Thermostat Wires
SOUTHWIRENonplenum-Rated Thermostat Wires

SOUTHWIRE Thermostat Wire: 18 AWG Conductor Size, 3 Conductors, 50 ft Overall Lg

The SOUTHWIRE Thermostat Wire (MPN 64168840) is a nonplenum-rated CL2/CM thermostat wire with 18 AWG conductor size, 3 conductors, 150 V voltage rating, and 50 ft overall length. 3G Electric interprets your demand…

SKU 3G-OTH-47516

Brand
SOUTHWIRE
Item
Thermostat Wire: 18 AWG Conductor Size, 3 Conductors, 50 ft Overall Lg
Category
Nonplenum-Rated Thermostat Wires
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

SOUTHWIRE
Manufacturer Part Number
64168840
Type
CL2/CM
Overall Lg
50 ft
Volt
150 V
Conductors
3

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

SOUTHWIRE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SOUTHWIRE Thermostat Wire (MPN 64168840) is a nonplenum-rated CL2/CM thermostat wire with 18 AWG conductor size, 3 conductors, 150 V voltage rating, and 50 ft overall length. 3G Electric interprets your demand for this wire and delivers it across 14 industrial departments — with specialist depth in controls to support your installation needs.

Frequently Asked Questions

What is Southwire thermostat wire used for?

Southwire thermostat wire connects HVAC thermostats, zone valves, and boiler controls to heating and cooling equipment. The 18 AWG, 3-conductor, 50 ft length suits residential and light commercial low-voltage control circuits. 3G Electric supplies this CL2/CM-rated wire for worldwide delivery.

What are the specifications of Southwire thermostat wire 64168840?

This Southwire thermostat wire has 18 AWG conductors, 3 conductors, 50 ft overall length, 150 V voltage rating, and CL2/CM fire-resistance classification. The MPN is 64168840. It is nonplenum-rated for use in walls and air-handling spaces not requiring plenum cable. 3G Electric sources and delivers this wire globally.

Where to buy Southwire thermostat wire in worldwide?

3G Electric supplies Southwire thermostat wire 64168840 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source genuine Southwire products and support procurement across 14 departments. Contact us for availability and lead time.

How to install Southwire thermostat wire?

Install Southwire thermostat wire by routing it from the thermostat to the HVAC equipment, avoiding sharp bends and physical damage. Use appropriate connectors and ensure the 150 V rating matches the control circuit. Follow local electrical codes for CL2/CM cable. 3G Electric provides this wire for reliable low-voltage connections.

Used in

Common applications for SOUTHWIRE
Commercial construction — Southwire THHN/THWN-2 building wire (750 kcmil) for feeder circuits in conduit systems
Industrial maintenance — Southwire 8 AWG THHN/THWN-2 for motor branch circuits in wet locations
Outdoor job sites — Southwire 50 ft extension cord (12/3 SJTW, L5-20P) for powering 20 A equipment
Fixture wiring — Southwire 18 AWG TFFN wire for control panels and lighting fixtures in dry environments
Temporary power distribution — Southwire 25 ft extension cord (14/3 SJTW) for portable tools on construction sites
Workshop lighting — Southwire AL60CSW LED work light for high-bay illumination in maintenance bays

SOUTHWIRE 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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Compatible alternatives & equivalents

Cross-referenced by specification & description
Nonplenum-rated thermostat wire with 4 conductors, 250 ft length, and 150 V rating. Suitable for low-voltage thermostat and HVAC control wiring in standard indoor installations where plenum-rated cable is not required
SOUTHWIRE
Nonplenum-rated thermostat wire with 4 conductors, 250 ft length, and 150 V rating. Suitable for low-voltage thermostat and HVAC control wiring in standard indoor installations where plenum-rated cable is not required
This 5-conductor thermostat wire is rated for 150 V and supplied in a 250 ft length. It is used for low-voltage control wiring in HVAC systems, connecting thermostats to heating and cooling equipment in nonplenum residential and commercial installations
SOUTHWIRE
This 5-conductor thermostat wire is rated for 150 V and supplied in a 250 ft length. It is used for low-voltage control wiring in HVAC systems, connecting thermostats to heating and cooling equipment in nonplenum residential and commercial installations
Nonplenum-rated thermostat wire with 5 conductors, 250 ft length, and 150 V rating. Suitable for low-voltage control wiring in HVAC systems, connecting thermostats to heating, cooling, and ventilation equipment in residential and commercial buildings
SOUTHWIRE
Nonplenum-rated thermostat wire with 5 conductors, 250 ft length, and 150 V rating. Suitable for low-voltage control wiring in HVAC systems, connecting thermostats to heating, cooling, and ventilation equipment in residential and commercial buildings
Nonplenum-rated thermostat wire with 8 conductors of 18 AWG, rated for 150 V, supplied in a 250 ft length. Suitable for low-voltage control circuits in HVAC systems, connecting thermostats to heating and cooling equipment in residential and commercial buildings where plenum-rated cable is not required
SOUTHWIRE
Nonplenum-rated thermostat wire with 8 conductors of 18 AWG, rated for 150 V, supplied in a 250 ft length. Suitable for low-voltage control circuits in HVAC systems, connecting thermostats to heating and cooling equipment in residential and commercial buildings where plenum-rated cable is not required
Nonplenum-rated thermostat wire with 5 conductors, 250 ft length, and 150 V rating. Used for low-voltage control wiring in HVAC systems, connecting thermostats to heating, cooling, and ventilation equipment in residential and commercial installations
SOUTHWIRE
Nonplenum-rated thermostat wire with 5 conductors, 250 ft length, and 150 V rating. Used for low-voltage control wiring in HVAC systems, connecting thermostats to heating, cooling, and ventilation equipment in residential and commercial installations
Nonplenum-rated thermostat wire with 2 conductors, 20 AWG, 250 ft length, and 150 V rating. Used for low-voltage control wiring in HVAC systems such as thermostats, zone valves, and boiler controls in residential and commercial nonplenum installations
SOUTHWIRE
Nonplenum-rated thermostat wire with 2 conductors, 20 AWG, 250 ft length, and 150 V rating. Used for low-voltage control wiring in HVAC systems such as thermostats, zone valves, and boiler controls in residential and commercial nonplenum installations

More from SOUTHWIRE

View all SOUTHWIRE parts →
5-conductor thermostat wire with 20 AWG conductors, 250 ft length, rated 150 V and CL2 for nonplenum installations. Suitable for low-voltage control wiring in thermostat and HVAC systems
SOUTHWIRE
5-conductor thermostat wire with 20 AWG conductors, 250 ft length, rated 150 V and CL2 for nonplenum installations. Suitable for low-voltage control wiring in thermostat and HVAC systems
This 8-conductor thermostat wire is rated for 150 V and has an overall length of 125 ft. It is suitable for low-voltage control circuits in HVAC systems, connecting thermostats to furnaces, heat pumps, and air handlers. Nonplenum-rated for use in walls and other non-air-handling spaces
SOUTHWIRE
This 8-conductor thermostat wire is rated for 150 V and has an overall length of 125 ft. It is suitable for low-voltage control circuits in HVAC systems, connecting thermostats to furnaces, heat pumps, and air handlers. Nonplenum-rated for use in walls and other non-air-handling spaces
Nonplenum-rated thermostat wire with 4 conductors, 250 ft length, and 150 V rating. Suitable for low-voltage control circuits in residential and light commercial HVAC systems. Not for use in air-handling spaces
SOUTHWIRE
Nonplenum-rated thermostat wire with 4 conductors, 250 ft length, and 150 V rating. Suitable for low-voltage control circuits in residential and light commercial HVAC systems. Not for use in air-handling spaces
Nonplenum-rated thermostat wire with 7 conductors, 150 V rating, and 250 ft length. Suitable for low-voltage control wiring in HVAC systems, connecting thermostats to heating, cooling, and ventilation equipment in nonplenum residential and commercial installations
SOUTHWIRE
Nonplenum-rated thermostat wire with 7 conductors, 150 V rating, and 250 ft length. Suitable for low-voltage control wiring in HVAC systems, connecting thermostats to heating, cooling, and ventilation equipment in nonplenum residential and commercial installations
7-conductor thermostat wire rated for 150 V, suitable for low-voltage control wiring in HVAC systems such as thermostats, zone valves, and boiler controls. Nonplenum-rated for use in residential and commercial installations where plenum rating is not required. Overall length of 250 ft
SOUTHWIRE
7-conductor thermostat wire rated for 150 V, suitable for low-voltage control wiring in HVAC systems such as thermostats, zone valves, and boiler controls. Nonplenum-rated for use in residential and commercial installations where plenum rating is not required. Overall length of 250 ft
CL2-rated thermostat wire with 6 conductors, 150 V voltage rating, and 250 ft length. Suitable for low-voltage control wiring in HVAC and building automation systems where nonplenum-rated cable is required
SOUTHWIRE
CL2-rated thermostat wire with 6 conductors, 150 V voltage rating, and 250 ft length. Suitable for low-voltage control wiring in HVAC and building automation systems where nonplenum-rated cable is required
CL2-rated thermostat wire for low-voltage control circuits in nonplenum spaces. Four 22 AWG conductors, 150 V rating, 250 ft length. Suitable for connecting thermostats to HVAC equipment such as furnaces, air conditioners, and heat pumps in residential and light commercial systems
SOUTHWIRE
CL2-rated thermostat wire for low-voltage control circuits in nonplenum spaces. Four 22 AWG conductors, 150 V rating, 250 ft length. Suitable for connecting thermostats to HVAC equipment such as furnaces, air conditioners, and heat pumps in residential and light commercial systems
This 5-conductor thermostat wire is rated CL2/CM for use in nonplenum spaces. It is suitable for low-voltage control wiring in thermostat and HVAC systems. The 150 V rating and 50 ft length support typical residential and commercial installations
SOUTHWIRE
This 5-conductor thermostat wire is rated CL2/CM for use in nonplenum spaces. It is suitable for low-voltage control wiring in thermostat and HVAC systems. The 150 V rating and 50 ft length support typical residential and commercial installations