---
product_id: 286053942
title: "Syston 18/4 Thermostat Doorbell HVAC Heating Control Cable Wire, 100% Solid Copper Conductors CL3R/FT4/CMR Riser-Rated UL/ETL Listed, UV Resistant RoHS for Indoor/Outdoor Low Voltage Applications Use"
brand: "syston cable technology"
price: "₱19818"
currency: PHP
in_stock: true
reviews_count: 8
url: https://www.desertcart.ph/products/286053942-syston-18-4-thermostat-doorbell-hvac-heating-control-cable-wire
store_origin: PH
region: Philippines
---

# 300V Power-Limited Circuit 100% Solid Pure Copper Conductors UV & Sunlight Resistant Jacket Syston 18/4 Thermostat Doorbell HVAC Heating Control Cable Wire, 100% Solid Copper Conductors CL3R/FT4/CMR Riser-Rated UL/ETL Listed, UV Resistant RoHS for Indoor/Outdoor Low Voltage Applications Use

**Brand:** syston cable technology
**Price:** ₱19818
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your smart spaces with copper-clad confidence!

## Quick Answers

- **What is this?** Syston 18/4 Thermostat Doorbell HVAC Heating Control Cable Wire, 100% Solid Copper Conductors CL3R/FT4/CMR Riser-Rated UL/ETL Listed, UV Resistant RoHS for Indoor/Outdoor Low Voltage Applications Use by syston cable technology
- **How much does it cost?** ₱19818 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/286053942-syston-18-4-thermostat-doorbell-hvac-heating-control-cable-wire)

## Best For

- syston cable technology enthusiasts

## Why This Product

- Trusted syston cable technology brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Eco-Smart & Safe:** RoHS compliant, combining high performance with environmental responsibility.
- • **Unmatched Conductivity:** Solid pure copper ensures peak performance and zero signal loss.
- • **Effortless Installation:** Smooth, round jacket with rip cord for quick, hassle-free setup.
- • **Built for Indoor & Outdoor:** UV resistant and UL/ETL listed for reliable all-weather use.
- • **Power-Rated for Demanding Systems:** CL3R/FT4/CMR rated for up to 300V and 300W surge capacity.

## Overview

The Syston 18/4 Thermostat Doorbell HVAC Control Cable features 100% solid copper conductors for superior conductivity, is UL/ETL listed with CL3R/FT4/CMR riser ratings, and supports up to 300 volts and 300 watts. Designed for both indoor and outdoor low-voltage applications, it boasts UV resistance and a user-friendly jacket with rip cord for easy installation, all while meeting RoHS environmental standards.

## Description

Full description not available

## Features

- This cable Applications:Wiring of thermostat controls, heating & air Conditioning equipment, doorbells ,ouch-plate systems, burglar alarms, intercom systems, annunciator and bell systems, remote control units, signal systems and other low-voltage applications.
- Pure Copper Conductors: Our thermostat cable is built with solid pure copper conductors, providing maximum conductivity and reliability to ensure that your systems run smoothly.
- 300V (CL3) Power-Limited Circuit Cable: Our cable is rated at 300 volts and classified as a Class-3 (CL3) Power-Limited Circuit Cable, capable of carrying a surge of up to 300 watts. This makes it a reliable choice for even the most demanding applications.
- Installation-Friendly Design: With its round, slick jacket and smooth edges, our cable is easy to pull through rough corners and edges. The jacket also features a rip cord for effortless removal during installation.
- Sunlight Resistant and RoHS Compliant: Our cable is designed for both indoor and outdoor use, complying with the UL 1581 sunlight resistance requirement for outdoor installations. It is also RoHS compliant, ensuring safety for the environment.

## Product Details

- **Color:** Brown
- **Brand:** Syston Cable Technology
- **Material:** Copper
- **Number of Cable Strands:** Multi Strand
- **Gauge:** 18

## Images

![Syston 18/4 Thermostat Doorbell HVAC Heating Control Cable Wire, 100% Solid Copper Conductors CL3R/FT4/CMR Riser-Rated UL/ETL Listed, UV Resistant RoHS for Indoor/Outdoor Low Voltage Applications Use - Image 1](https://m.media-amazon.com/images/I/71YI-RGNHhL.jpg)
![Syston 18/4 Thermostat Doorbell HVAC Heating Control Cable Wire, 100% Solid Copper Conductors CL3R/FT4/CMR Riser-Rated UL/ETL Listed, UV Resistant RoHS for Indoor/Outdoor Low Voltage Applications Use - Image 2](https://m.media-amazon.com/images/I/81LOtrc2qaL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: Is Syston Cable Technology wire Sunlight Resistant?**
A: Yes, our Non-Plenum series cable has sunlight resistant, UV protection. Plenum has its own rating.

**Q: What are Riser Cable ? Where to use Riser Cable ?**
A: Riser cables are installed in between floors, and in walls of buildings,Building areas such as shafts or ducts that  run vertically through one or more floors，conduit, raceways, or on a single floor.

**Q: Can I use a bigger gauge wire to a small wire?**
A: Yes. Using larger gauge AWG wire offers you more flexibility in how your electrical system is laid out. Larger wiring can sometimes be installed in risky areas where small wiring is not recommended.

**Q: Can this cable be used as a doorbell wire?**
A: Yes,our thermostat wire is perfect for wiring thermostat controls and heating and air conditioning equipment, plus it makes great doorbell wire and is perfect for many other low-voltage applications

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked fine, decent price.
*by K***. on September 10, 2025*

Worked fine, decent price. Was able to buy a longer roll here than what I would have purchased locally, but it made running the cable easier with less overall waste. I had two runs to make so if I just bought what I thought I needed I would have ended up with two shorter leftover pieces.

### ⭐⭐⭐⭐⭐ I'm a novice and I was able to relocate my thermostat.
*by M***R on September 20, 2025*

Bought this and researched how to move my thermostat; it worked. Thanks.

### ⭐⭐⭐⭐⭐ Good value and quality product
*by A***X on September 11, 2025*

Wire arrived as expected. Works perfectly and does everything I need. I’m using all 8 connectors and they all work!

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**Shop now:** [https://www.desertcart.ph/products/286053942-syston-18-4-thermostat-doorbell-hvac-heating-control-cable-wire](https://www.desertcart.ph/products/286053942-syston-18-4-thermostat-doorbell-hvac-heating-control-cable-wire)

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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-02-10*