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Brown PVC jacketed thermostat cable on wooden reel

Logico

Logico 18/3 Thermostat Wire Bare Copper CMR 500ft Brown

SKU CH-M1HJ-9Y6R6

Three-conductor 18-gauge solid copper thermostat cable on a 500-foot wooden reel, CMR-rated and sunlight-resistant from −20 °C to 60 °C for low-voltage HVAC and alarm circuits

  • Conductor gauge18 Gauge
  • Number of conductors3
  • Spool length500 ft (152 m)
  • Stranded/solidSolid
  • Wire typeThermostat Cable
  • Jacket materialPVC CMR
  • 500 ft continuous run simplifies large HVAC installs
  • 18 AWG solid bare copper ensures reliable low-voltage signals
  • CMR-rated PVC jacket meets riser fire-safety codes
  • Sunlight-resistant from -20 °C to 60 °C for durable routing
  • Three conductors support thermostat, bell and alarm circuits

Solid Copper Thermostat Cable

This Logico thermostat wire is an 18 gauge, three conductor solid copper cable rated for 150 volts. It ships on a 500 foot wooden reel with a brown PVC jacket that carries a CMR rating. The construction suits low voltage heating, HVAC and bell alarm installations.

Installers running vertical risers vs open wiring

The CMR rating and sunlight resistant jacket covering -20 to 60 degrees C make it appropriate for vertical shaft runs between floors. Projects that require stranded conductors or a higher conductor count will need a different cable type.

Three Conductor 18 AWG Solid Core

The three solid copper conductors at 18 AWG determine whether this reel matches the circuit design. Verify the conductor count and gauge against the equipment wiring diagram before purchase.

How it compares

Measured against everything we stock in Wire, Cable & Wiring Supplies, at today’s prices. Recalculated every night.

Price $74.99
Pricier than about 79% of the 1,610 comparable items (median $25.99).

Specifications

Product
Brand nameLogico
Product typeLow Volt
Size & build
Overall length500 ft (152 m)
Main materialBare Copper
Spool length500 ft (152 m)
Jacket materialPVC CMR
In the box
Number of items1
More details
Conductor gauge18 Gauge
Number of conductors3
Stranded/solidSolid
Wire typeThermostat Cable

Questions about this item

What size conduit or raceway will the 18 AWG solid 3-conductor PVC CMR jacket fit through?

The 18 AWG solid 3-conductor cable has a compact PVC CMR jacket suitable for standard low-voltage raceways; consult local code for fill calculations based on the cable's outer diameter.

How do you strip and terminate the solid bare copper conductors without nicking them?

Use a calibrated 18 AWG stripper, remove only the PVC insulation, twist each solid conductor firmly under the terminal screw or push-in connector, and verify no stray strands bridge adjacent terminals.

When should the brown PVC CMR jacket be inspected or replaced due to sunlight or temperature exposure?

Inspect the jacket annually if exposed to direct sun or temperatures near -20 °C or 60 °C; replace any length showing cracking, discoloration, or loss of flexibility.

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