Southwire 64170422 18/7 Solid Copper Class 2 Power-Limited Thermostat Wire; 50 feet ; Brown
Product ID: 288111700
⚡150V Class 2 power-limited rating
🧵7 solid copper conductors
🛡️6 mil PVC insulation jacket
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Southwire 64170422 is a 50-foot, 18/7 gauge solid copper thermostat wire designed for indoor residential HVAC and alarm control applications. Featuring 7 conductors coated in a durable 6 mil PVC jacket, it meets Class 2 power-limited circuit standards with a 150V rating. UL listed and RoHS compliant, this wire ensures safe, reliable, and eco-conscious performance for modern smart home systems.
| ASIN | B0069F4HEU |
| Best Sellers Rank | #180,928 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #820 in Electrical Wire |
| Brand | Southwire |
| Brand Name | Southwire |
| Color | Brown |
| Colour | Brown |
| Customer Reviews | 4.6 out of 5 stars 418 Reviews |
| Gauge | 18_gauge |
| Global Trade Identification Number | 00032886855962 |
| Included Components | Thermostat Wire |
| Item Type Name | Southwire 64170422 50' 18/7 Thermostat Class 2 Power-Limited Circuit Cable for use in residential heating and air conditioning, Brown |
| Item Weight | 939 g |
| Manufacturer | Southwire |
| Material | Copper |
| Material Type | Copper |
| Model | 64170422 |
| Number Of Wires | 7 |
| Number of cable strands | 7 |
| Part Number | 64170422 |
| Strands | 7 |
| UPC | 032886855962 |
| Unit Count | 1 Count |
| Voltage | 150 Volts |
| Wire Diameter | 6 Mils |
M**R
Good for 2 stages or auxiliary functions needing more than 5 wires
Nice solid wire, color coded for the different terminals, very easy to tape together and pull in place of the old wire. Works very well for my 2 stage furnace with AC and now with my smart thermostat, it has all the features over a 5 wire. And now I have an extra wire in case I ever upgrade to geothermal, heat pump, two stage air-conditioner, or just if one of the other wires breaks or has a problem. Good price point too
M**N
Nice spool of thermostat wire
Great priced spool of 18/7 solid copper thermostat wire. The 7 strands should be enough for even the modern smart thermostats. I have an evaporative cooler with a separate thermostat, and an older furnace with an older 2-wire thermostat. So, to plan for upgrades, I got this to replace the current 2 wire system to add the crucial common wire for a smart thermostat and to also lay the ground work for a future AC installation. This wire is flexible enough to be easy to work with and to fish through small places and corners. Would highly recommend! Pros: - 7 wire 18 gauge solid core wire - Flexible enough to fish through tight corners - 50 ft as received - 150V rated - UV resistant Cons: - Thicker insulation would have been nice
K**M
Does what it's supposed to
Wires are really large gauge (small) but that's all you need, I guess. Even the C wire only handles 24 V at about an amp so it's fine. Color coding was a bit off for me but I worked around it. This wire just has a certain heft to it and seems to be quality. Would buy again. Southwire has a good reputation for quality wire product.
Z**N
Works as it should
I used this wire to connect an advanced ERV controller that has almost all the same features as a normal HVAC thermostat. This wire worked, was not unusually hard to fish through walls, arrived on a spool, and did not have any defects. My ERV and its controller have been operating great for weeks now. Good product!
D**D
Good thermostat wires but not gauge 18
Great product but these are not gauge 18 wires. I tried to use gauge 18 wire stripper on them but it was too big to remove insulation. I ended up using gauge 20 wire stripper. Packaging does not mention wire gauge. 4 star because product info mentions gauge 18 on Amazon and that is not correct. The cable is easy to fish and works well.
Trustpilot
1 month ago
1 month ago