Drexma Power Module with LED USG5-4000 for Electric Radiant Floor Heating, Relay with Class A GFCI, Multi Voltage, For 120/240 V Heating Cables, For Use with Programmable Touchscreen Smart WiFi Thermostat

Product Features:

• Designed to expand electric radiant floor heating systems by allowing thermostat to control additional heating cables or mats.
• Supports multi-voltage operation for both 120 V and 240 V electric floor heating cables, offering flexibility for residential and light commercial installations.
• Integrated Class A GFCI provides enhanced ground fault protection, meeting safety standards for electric underfloor heating applications.
• Built-in LED indicator delivers clear visual status for power, operation, and GFCI condition, simplifying troubleshooting and system monitoring.
• Ideal for large heated floor areas, multi-zone installations, and projects where heating load exceeds thermostat capacity.
• Compatible with electric radiant floor heating systems installed under tile, stone, porcelain, ceramic, and other approved floor coverings.
• Enables safe, efficient load management without the need for additional thermostats, reducing wiring complexity and installation costs.
• Engineered for reliable performance, long service life, and seamless integration with modern smart floor heating controls.

Product Description:

The Drexma USG5-4000 Relay / Power Module with LED is a professional-grade load expansion solution designed for electric radiant floor heating systems that require higher power capacity or multi-zone control. This power module allows a single programmable touchscreen smart WiFi thermostat to safely control additional heating cables or mats while maintaining precise temperature regulation and electrical protection. Engineered for compatibility with both 120 V and 240 V electric floor heating cables, the USG5-4000 supports a wide range of residential and light commercial underfloor heating applications, including bathrooms, kitchens, entryways, basements, and large tiled living areas.

Equipped with an integrated Class A GFCI, the Drexma power module provides advanced ground fault protection that meets North American electrical safety requirements, helping to protect users and heating systems from electrical faults. The built-in LED status indicator offers clear visual feedback for power status, GFCI condition, and system operation, simplifying installation, diagnostics, and ongoing maintenance.

The USG5-4000 relay module is specifically designed to work in conjunction with compatible programmable touchscreen smart WiFi thermostats, allowing installers to expand system capacity without adding additional thermostats. This makes it ideal for large floor heating zones, multiple heating mats or cables, and projects where electrical load exceeds the thermostat’s direct output rating. Designed for long-term reliability, the Drexma relay module ensures stable switching, consistent performance, and seamless integration into modern electric radiant floor heating systems.