GX850 Snow Melt Controllers

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Award winning snow melt control

The GX850 ACP or GX850M controllers are an ideal choice for the most optimal control.

The AWARD WINNING Danfoss GX Dual Zone Automatic Control Panel (ACP) and GX850M the most optimal solution for keeping any area free of ice and snow. The GX 850 acts on information received from sensors which register both temperature and moisture, then calculates the information ensuring that the heat will only be turned on when snow and/or ice is present. The result is increased efficiency, saving energy and minimizing operating costs.

Features and benefits

User interface allows total control of snow melting system set points

Set to maximum melting, or maximum energy savings or anywhere in between

Dual zone feature allows for energy savings

Digital sensors provide precise feedback on snow and ice conditions

Fault finding program detects and alarms on faults

Can be field upgraded to take advantage of new features

Integrate one to four separate sensors

Two year warranty

Product range

GX850 Dual Zone Automatic Control Panel

GX850 Dual Zone Automatic Control Panel

  • Control Voltage: 120V
  • Max. Heating Load: 150A
  • Max. Ambient Temperature: 14°F to 104°F (-10°C to +40°C)
  • Enclosure Type: NEMA 4X
  • Mounting: Wall mounted, indoors
  • Dimensions (HxWxD): 10.5" x 12.5" x 7" (267mm x 318mm x 178mm)


  • Control Voltage: 120V
  • Max. Heating Load: NA, Contactors required
  • Max. Ambient Temperature: 14°F to 104°F (-10°C to +40°C)
  • Enclosure Type: NEMA 1X
  • Mounting: Wall mounted, indoors
  • Dimensions (HxWxD): 7" x 7" x 3" (177mm x 177mm x 76mm)


Type Name Language Valid for Updated Download File type
Catalog Electric Heating Product Catalog VKAPA1022_2 English Multiple 14 Mar, 2019 2.6 MB .pdf
Brochure GX Snow Melting Brochure English Multiple 21 Aug, 2017 1.4 MB .pdf
Data sheet GX850 Automatic Control Panel (ACP) Datasheet English Multiple 31 Aug, 2016 339.8 KB .pdf
Installation guide GX850ACP/GX850M Installation Manual English Multiple 01 Oct, 2019 1.0 MB .pdf
Data sheet GX850M Controller Datasheet English Multiple 29 Jan, 2019 346.7 KB .pdf

Related products

  • GX Snow Melting Mat
    GX Heating Mats - for ice and snow melting

    Danfoss GX snow and ice melting mats are available in a wide range of sizes and voltages and can be used in a variety of applications from residential driveways and sidewalks to commercial building ramps, steps and parking areas.

  • Gx Snow melting cables
    GX cables - for snow melting

    GX Snow melting cables are available in a wide range of voltages (208V, 240V, 277V, 480V, 600V) and lengths (from 40ft. to 940ft). The GX cable allows for more flexibility during installation as the cables may be spaced at different increments depending on your application area.

  • DS-2C and DS-5C Snow Melt Controllers
    DS Snow Melt Controllers

    The DS-2C and DS-5C snow melt controllers are designed for pavement snow melt applications. They can be used as a stand alone controller or as a sensor for larger control systems.

  • Contactor /  Timer Panels
    Contactor / Timer Panels

    Contactor and timer panels, GFEP Panels, and single contactors are all available.

  • GX Accessories
    GX Accessories

    Accessories for the outdoor GX snow melting system. Products include cable strapping, ground sensors, repair kits and more.


Technical Support

Technical Support

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