SYSTON CABLE TECHNOLOGY THERMOSTAT WIRE
18/2 18/3 18/4 18/5 18/6 18/7 18/8 18/10 Available Options
Size: 18 AWG Conductor: Solid Bare Copper
Insulation: Premium Polyolefin (Flame-Retardant & RoHS Compliant)
Temperature Rating (°F) Installation: +32 to +140 Storage & Operation: -4 to +167
CL3R (Riser-Rated) flame-retardant jacket, for peace of mind in case of fire.
Versatile applications including all kinds of HVAC situations such as wiring low voltage heating and air conditioning controls, bell and annunciator systems, and other low-voltage applications. This cable can be used in both damp or dry locations.
18/2 18/3 18/4 18/5 18/6 18/7 18/8 18/10 Purchase Listing
 18/2 |  18/3 |  18/4 |  18/5 |  18/6 |  18/8 |  18/10 | |
|---|---|---|---|---|---|---|---|
Customer Reviews | — | — | — | — | — | — | — |
Price | — | — | — | — | — | — | — |
Conductor Number | 2 | 3 | 4 | 5 | 6 | 8 | 10 |
Wire Gauge | 18 AWG | 18 AWG | 18 AWG | 18 AWG | 18 AWG | 18 AWG | 18 AWG |
Power-Limited Circuit | 300V (CL3) | 300V (CL3) | 300V (CL3) | 300V (CL3) | 300V (CL3) | 300V (CL3) | 300V (CL3) |
Fire Retardant level | CL3R/FT4/CMR Riser-Rated | CL3R/FT4/CMR Riser-Rated | CL3R/FT4/CMR Riser-Rated | CL3R/FT4/CMR Riser-Rated | CL3R/FT4/CMR Riser-Rated | CL3R/FT4/CMR Riser-Rated | CL3R/FT4/CMR Riser-Rated |
RoHS | ? | ? | ? | ? | ? | ? | ? |
Outdoor Use | ? | ? | ? | ? | ? | ? | ? |
What do thermostat wire colors mean?
Common thermostat wire colors include Red for power, White for heat, Yellow for cooling, Green for fan, and Blue for the C-wire. Always verify terminal labels before installation.
Do I need a C-wire for a Nest thermostat?
Not always. While some Nest thermostats can operate without a C-wire, using one helps ensure stable power. An 18/8 cable includes extra conductors for future C-wire needs.
Is this thermostat wire sunlight resistant?
Yes, our Non-Plenum series cable has sunlight resistant, UV protection. Plenum has its own rating.
Can this cable be used as a doorbell wire?
Yes, our thermostat wire is designed for wiring thermostat controls and heating and air conditioning equipment, plus it makes great doorbell wire and is a good choice for many other low-voltage applications.
How many conductors do I need for a smart thermostat?
Most smart thermostats require 5 or more conductors. An 18/8 cable provides extra wires for future upgrades and additional HVAC accessories.
SYSTON CABLE TECHNOLOGY THERMOSTAT WIRE
18/2 18/3 18/4 18/5 18/6 18/7 18/8 18/10 Available Options
Size: 18 AWG Conductor: Solid Bare Copper
Insulation: Premium Polyolefin (Flame-Retardant & RoHS Compliant)
Temperature Rating (°F) Installation: +32 to +140 Storage & Operation: -4 to +167
CL3R (Riser-Rated) flame-retardant jacket, for peace of mind in case of fire.
Versatile applications including all kinds of HVAC situations such as wiring low voltage heating and air conditioning controls, bell and annunciator systems, and other low-voltage applications. This cable can be used in both damp or dry locations.
18/2 18/3 18/4 18/5 18/6 18/7 18/8 18/10 Purchase Listing
18/2 | 18/3 | 18/4 | 18/5 |  18/6 |  18/8 |  18/10 |
|---|---|---|---|---|---|---|
| Customer Reviews | ||||||
| — | — | — | — | — | — | — |
| Price | ||||||
| — | — | — | — | — | — | — |
| Conductor Number | ||||||
| 2 | 3 | 4 | 5 | 6 | 8 | 10 |
| Wire Gauge | ||||||
| 18 AWG | 18 AWG | 18 AWG | 18 AWG | 18 AWG | 18 AWG | 18 AWG |
| Power-Limited Circuit | ||||||
| 300V (CL3) | 300V (CL3) | 300V (CL3) | 300V (CL3) | 300V (CL3) | 300V (CL3) | 300V (CL3) |
| Fire Retardant level | ||||||
| CL3R/FT4/CMR Riser-Rated | CL3R/FT4/CMR Riser-Rated | CL3R/FT4/CMR Riser-Rated | CL3R/FT4/CMR Riser-Rated | CL3R/FT4/CMR Riser-Rated | CL3R/FT4/CMR Riser-Rated | CL3R/FT4/CMR Riser-Rated |
| RoHS | ||||||
| ? | ? | ? | ? | ? | ? | ? |
| Outdoor Use | ||||||
| ? | ? | ? | ? | ? | ? | ? |
What do thermostat wire colors mean?
Common thermostat wire colors include Red for power, White for heat, Yellow for cooling, Green for fan, and Blue for the C-wire. Always verify terminal labels before installation.
Do I need a C-wire for a Nest thermostat?
Not always. While some Nest thermostats can operate without a C-wire, using one helps ensure stable power. An 18/8 cable includes extra conductors for future C-wire needs.
Is this thermostat wire sunlight resistant?
Yes, our Non-Plenum series cable has sunlight resistant, UV protection. Plenum has its own rating.
Can this cable be used as a doorbell wire?
Yes, our thermostat wire is designed for wiring thermostat controls and heating and air conditioning equipment, plus it makes great doorbell wire and is a good choice for many other low-voltage applications.
How many conductors do I need for a smart thermostat?
Most smart thermostats require 5 or more conductors. An 18/8 cable provides extra wires for future upgrades and additional HVAC accessories.
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