Self Regulating Trace Heating Cables | Heatfast 1240

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Trace Heating Cables

Self Regulating Cables

Thorne & Derrick’s Heatfast HF1240 self regulating trace heating cables are ideal for frost protection of pipework exposed to low ambient temperatures. The self-regulating ability of the Heatfast HF1200 series is derived from the properties of the conductive core material. Heatfast HF1240 heat tracing cable has a heat output of 40w/m at 10ºC and weighing approximately 108 (g/m).

As the core temperature increases the number of conductive paths in the core decreases – decreasing the heat output. This occurs at every point along the length of the cable, adjusting power outputs to the varying conditions along the pipe and ensuring that the cable is only producing heat if it is required.

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Self Regulating Trace Heating

Technical Information

• Maximum Maintain Temperature 65°C
• Maximum Exposure Temperature (de-energised) 80°C
• Nominal Voltage* 230V
• Bending Radius, Min. 25mm
• Installation Temperature, Min. -60°C

*Further voltages available on request

Accessories

• Connection Kit for Power Connection, Tee Splice, Splices & End Seals
• Thermostatic Controls
• Junction Boxes, Tapes & Warning Signs

Freeze Prevention

Temperature Maintenance

Silos, Vessels & Tanks

Pipelines

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Customised Heating Cable Kits

Each trace heating kit can be supplied ready to install with step-by-step instructions – simply attach the cable, linearly, to the length of the water pipe, insulate and plug in to the mains supply. Controlled by an air sensing thermostat that will activate when the ambient temperature falls below 5° Celsius the pipe heating cables will gently trace heat the pipe, thus preventing water from freezing – our friendly and expert team of Sales Engineers or just a call away if you’re in doubt.

Our Team of Trained Technical Sales Engineers are available to advise and support your trace heating enquiries – this includes design and supply of complex multi-kilometre, major-project systems to custom heat trace cable kits for the Winterisation of plant and factory facilities.

➡ Contact us today to find out how Thorne & Derrick can provide heat loss calculations and a design service to keep your plant and personnel operational during the winter months.

Benefits

• Four nominal outputs
• UV-resistant
• Easy to install
• Energy efficient

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Technical Data

Part Number	Nominal Output	Dimensions approx. (mm)	Weight approx. (g/m)
HF1240	40 W/m at 10 °C	14.1 x 5.8	108

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Switch on temperature (°C)	Nominal cut-out value (A)	Maximum heating circuit length (m)
		HF1240
10	10	36.0
	16	57.0
	20	71.0
	25	89.0
	32	94.0
0	10	31.0
	16	50.0
	20	62.0
	25	78.0
	32	88.0
-10	10	28.0
	16	44.0
	20	55.0
	25	69.0
	32	83.0
-20	10	25.0
	16	40.0
	20	50.0
	25	62.0
	32	78.0
-40	10	21.0
	16	33.0
	20	42.0
	25	52.0
	32	66.0

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HF1200 Series Power Rating (on insulated metallic pipes in accordance with EN 62395–1)

Circuit Lengths Based On The Following:

• 230V nominal voltage
• Delayed action circuit breakers (C-characteristic) with 80% maximum load
• Maximum 10% line voltage drop on heating cable bus wire
• Power connection to one heater end

1. Bus wire Nickel plated copper
2. 2. Self-regulating heating element
3. 3. Insulation
4. 4. Protection Protective Braid (Cu, tin plated)
5. 5. Outer jacket

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Data Sheets

• HF1200 Series
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