Constant Wattage Cables | Nelson Heat Trace | NC Trace Heater Cables

Nelson Heat Trace NC Heater Cables – Trace Heating

constant wattage cables – Trace Heating

Nelson Heat Trace NC constant wattage trace heating cables provide process temperature maintenance and frost protection to pipework, instrument lines, tanks and drums up to 204ºC. The Nelson Heat Trace NC heater cable is available in power densities from 1.5 to 12 watts per foot and is suitable for facilities which use super-heated steam to flush and clean pipes.

The NC trace heating cable is ideally suited for process temperature maintenance applications with product pipelines, process water, dust suppression systems, lube oil, condensate return. It can also be used for structure de-icing.

Nelson Heat Trace NC Trace Heating CABLE – SPECIFICATION

Nelson Heat Trace Cable Part Number	Supply Voltage	Maximum Segment Length	Maximum Maintenance Temperature	Maximum Intermittent Exposure Temperature	Watts / ft
NC4	120	405ft	300ºF	400ºF	4
NC4	208	405ft	150ºF		12
NC8	120	285ft	210ºF		8
NC26	120	665ft	300ºF		1.5
	208		285ºF		4.5
	220		270ºF		5
	240		245ºF		6
	277		210ºF		8
NC210	120	515ft	300ºF		2.5
	208		215ºF		7.5
	220		200ºF		8.5
	240		175ºF		10
NC212	120	470ft	300ºF		3
	208		190ºF		9
	220		175ºF		10
	240		150ºF		12

constant wattage cable – Operating Principle

Parallel bus wires supply voltage along the entire length of the trace heating cable
A resistance wire heating element is wrapped spirally around the bus wires, contacting alternate bus wires at specific intervals to form ‘heating zones’
This series of parallel heating zones provides a constant power output for each zone, regardless of where the cable is cut along the length of the bus wires
Each cable construction has the heating zone resistance sized to provide multiple power ratings when used on different voltages
This variation is accomplished using different spiral wrap spacing and heater zone lengths
There is no change of power output as the temperature changes, giving a steady power output anywhere in its recommended operating range

➡ Nelson Heat Trace Heat Heating Cables provide frost protection to water pipework, hot water temperature maintenance, process temperature maintenance in industrial applications.