× Thanks for your submission. A customer service agent will be in touch soon to help you further. Features & Benefits Reduced total installed cost Reduced power supply costs: lower start up currents compared with other technologies Simple controls: current monitoring on series resistance provides instant visibility on critical circuits Fast track/expedited service for configured heating units for eligible designs Standard 400 °C continuous withstand temperature, with brazed weld technology High corrosion resistance, especially in seawater environments Specifications Specifications Metric | Imperial Supply Voltage 0 – 500 V Max Power Output 70 W/m Max Power Output 21.3 W/ft Max Continuous Exposure Temperature, Power Off 400 °C Max Continuous Exposure Temperature, Power Off 752 °F Insulation Material Magnesium Oxide Sheath Material Cupro-Nickel Area Classification Non-Hazardous; Hazardous Min Installation Temperature -60 °C Min Installation Temperature -76 °F Min Cable Spacing 25 mm Min Cable Spacing 0.98 in Metric | Imperial Catalog Number Nominal Resistance @ 20°C Nominal Resistance @ 68°F Outer Diameter Outer Diameter HDF1M1000 1000 Ω/km 0.3049 Ω/ft 3.4 mm 0.134 in HDC1M11 11 Ω/km 0.0034 Ω/ft 4.9 mm 0.193 in HDF1M160 160 Ω/km 0.0488 Ω/ft 4.9 mm 0.193 in HDF1M1600 1600 Ω/km 0.4878 Ω/ft 3.2 mm 0.126 in HDC1M17 17 Ω/km 0.0052 Ω/ft 4.6 mm 0.181 in HDC1M25 25 Ω/km 0.0076 Ω/ft 3.7 mm 0.146 in HDF1M250 250 Ω/km 0.0762 Ω/ft 4.4 mm 0.173 in HDC1M4 4 Ω/km 0.0012 Ω/ft 5.9 mm 0.232 in HDC1M40 40 Ω/km 0.0122 Ω/ft 3.4 mm 0.134 in HDF1M400 400 Ω/km 0.122 Ω/ft 4 mm 0.157 in HDC1M63 63 Ω/km 0.0192 Ω/ft 3.2 mm 0.126 in HDF1M630 630 Ω/km 0.1921 Ω/ft 3.7 mm 0.146 in HDC1M7 7 Ω/km 0.0021 Ω/ft 5.3 mm 0.209 in Related Products Control, Monitoring and Sensing NGC-20 Controller A field-mounted local electronic temperature controller with central monitoring capabilities. ETS-05 Electronic Thermostat Electronic surface sensing temperature thermostat for temperature maintenance or pipe freeze protection applications, 32 A / 24 A single pole switch. Suitable for hazardous areas. TM20 Mechanical Thermostat For temperature control in safe areas, a surface sensing thermostat with temperature limiter. Heating Components and Accessories Support Bracket A range of stainless steel support brackets for junction boxes and thermostats. Pipe Strap for MI Cables A range of stainless steel pipe straps for use with mineral insulated (MI) heating cables on pipes, they avoid over-tensioning and are ideal for corrosive environments. Cast Junction Box for MI Cables A range of robust and durable, cast aluminum/iron alloy junction boxes for use with mineral insulated (MI) heating units suitable for hazardous locations. Polymer Junction Box For MI Cables A range of polymer junction boxes with earth plate, for use with mineral insulated (MI) heating cables in hazardous areas. Heating Kits and Units GEHU Configured MI Heating Unit Factory terminated mineral insulated (MI) heating units for many applications including those requiring high power output/exposure temperatures. Long life expectancy. Suitable for hazardous areas.