Roof And Gutter De-icing

The Raychem self-regulating snow melting system maintains water flow in gutters and drains pipes and provides a path whereby melting ice and snow can drain safely off the roof, along the gutter and down the drain pipe.

Features and benefits:

  • The self-regulating cable can be closely spaced in gutters without the risk for overheating or burn-outs. There is a cable for each type of roof material.
  • The system saves energy by automatically increasing its heat output in icy water and decreasing its output in dry air. The smart EMDR-10 control unit only switches the heating cable on when necessary, after the detection of both low temperature and moisture.
  • 25 year cable life expectancy.

System components:

  • Ambient and moisture sensors.
  • Fixing bracket.
  • Control unit.
  • Residual current device (RCD 30 mA) circuit-breaker (C type).
  • Connection RayClic CE-02.
  • Heating cable.
  • End seal.

Five year warranty.

Specification data

Product Reference

Roof And Gutter De-icing

Heating cable


With modified polyolefin jacket. 36 W/m in iced water and 18 W/m in air at 0°C.


With fluoropolymer jacket for use on asphalt, bitumen, roofing felt etc. 36 W/m in iced water and 18 W/m in air at 0°C.



Control Panel for up to three heating circuits. 380 x 600 x 210 mm.


Control Panel for up to six heating circuits. 380 x 600 x 210 mm.


Control Panel for up to nine heating circuits. 600 x 600 x 210 mm.


Control panel for up to 12 heating circuits. 760 x 760 x 210 mm.



Smart control unit.


Standard thermostat.



Cold lead connection and end seal kit for GM-2X only.


Cold lead connection and end seal kit for GM-2XT only.


Power connection with 1.5 m power cable, end seal and support bracket. IP68.


Powered splice, connection for two cables with 1.5 m power cable. Supplied with two end seals and support bracket. IP68.


Power T-connection with 1.5 m power cable for three cable connection. Supplied with three end seals and support bracket. IP68.


T-connection for three cables. Includes end seal and support bracket. IP68.

Product Options

Cable length:

  • The cable length is determined by the drainpipe length plus 1 m per connection and 1 m in the soil (frost line).
  • The heating cable should be installed in a straight line in the gutter.
  • The cable lengths should be adjusted according to the geographical situation and the gutters.
  • More than one cable should be laid in wide valley, parapet or box gutters.

Electrical protection:

  • The total length of heating cable determines the number and size of the fuses.
  • Residual current device (RCD): 30 mA required, maximum 500 m heating cable per RCD.
  • Installation according to local regulations uses C type circuit breakers.
  • The power connections must be carried out by an approved electrical installer.
  • Consult technical literature for further details.

Control panel:

Steel plate housing, wall-mounted version, equipped with mains isolator, RCD/CB combination(s), indicators for `Operation and Fault‘, inlet and outlet terminals. Completely assembled, wired and inspected. Cable guides in base of housing An EMDR-10 control unit is installed in each switch cabinet.

  • Finish: Structural paint, RAL 7035, light grey.
  • Ingress protection: IP 54.
  • Ambient temperatures: 5–35°C.
  • Cable inserts: Metal plate in base of housing with metric breakout apertures.
  • Mains power connection: three-phase to 400V/230V, 50 Hz, with N and PE.
  • Location: Interior.

- Customer fuse protection:

  • SBS-03-EV: 3 x 32 A NH-00. Three pin mains isolator switch, 32 A.
  • SBS-06-EV: 3 x 40 A NH-00. Three pin mains isolator switch, 63 A.
  • SBS-09-EV: 3 x 63 A NH-00. Three pin mains isolator switch, 63 A.
  • SBS-12-EV: 3 x 80 A NH-00. Three pin mains isolator switch, 100 A.

Control unit:

- EMDR-10:

  • With temperature (PTC [FL 103]) and moisture sensor (PTC).
  • ser-friendly control.
  • Saves up to 80% energy.
  • Maximum switching capacity 10 A (otherwise switching by contactor).
  • Potential free alarm for sensor break age, sensor short and power loss.
  • Supply voltage: 230 VAC/ 50 Hz.
  • Power consumption: 4 VA (maximum).
  • Maximum switching capacity: 10(4) A/ 230 VAC, SPST, potential 230 VAC.
  • Alarm relay: 2(1)A/ 230 VAC, SPDT, potential-free.
  • Mounting: DIN rail according to DIN EN 50022-35.
  • Low voltage directive EN 60730. EMC EN 50081-1 (emission) and EN 50082-1 (immunity).
  • Ingress protection: IP 20.
  • Housing material: Noryl (self-extinguishing according to UL 94 V-0).

- HTS-D:

  • Two independent switching points.
  • Maximum switching current: 16 A, 250 VAC.
  • Temperature adjustment range: -20°C to +25°C.
  • Ingress protection: IP 65.
  • Temperature setting under the housing cover.
  • Outdoor installation.
  • Economical for circuit lengths up to 30 m.

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