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PowerHeat (AHT)

Products > Constant Wattage Heaters > PowerHeat (AHT)

Product Features

                                                                ATEX - European Hazardous Area Approval FM - North American Hazardous Area approval IEC - Conforms to IEC international standards

PowerHeat (AHT) is a unique patented, high power, high temperature, high mechanical strength constant wattage heating cable that can be used for freeze protection and temperature maintainance of pipework and vessels.  It has a maximum temperature of 425°C (797°F) makes it the highest temperature rated cut-to-length heating cable in the world!

PowerHeat (AHT) has an aluminium outer jacket giving it the highest mechanical strength of any cut-to-length heating cable in the world!

PowerHeat (AHT) can be cut-to-length at site to match exact piping lengths  without any complicated design considerations.  PowerHeat (AHT) can, in most cases, replace MI cables.  Series resistance Mi circuits must be specifically designed for a particular pipe length and cannot be modified to suit site changes.

PowerHeat (AHT) is approved for use in non-hazardous, and hazardous areas to world wide standards.

PowerHeat (AHT) is jacketted in a continuous aluminium extrusion for maximum mechanical strength.  The aluminium jacket allows the cable to be formed around valves, pumps and instruments.

The installation of PowerHeat (AHT) is quick and simple and requires no special skills or tools. Termination, splicing and power connection components are all provided in convenient kits. See Product, Application and Documentation Links below.

  Click to see larger image
Aluminium Outer Jacket
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Product Specification

Maximum Withstand Temperature 425°C (797°F)

PowerHeat (AHT) is available in 15, 30, 50, 70, 100  and 150 W/m outputs as illustrated on the graph to the right.  The graph shows the nominal power output at 230V when installed on insulated metal pipes.  Click on the graph to see a larger version.

  Maximum Withstand Temperature 425°C (797°F)
  Maximum Energised Temperature 350°C (662°F)
See Workpiece Temperature table
  Minimum Operating Temperature -65ºC (-85ºF)
  Power Supply 12 - 277 VAC

Cable Dimensions

10.0 x 7.0 mm
  Click on the graph to see a larger version.
Nominal power output  against pipe temperature


  Minimum Installation Temperature -40°C (-40°F)
  Minimum Bending Radius 25 mm
  Weight kg/100m 16.5 kg
  Cable Gland Thread Size M20


Maximum Circuit Length (m) 
115V 230V
  15AHT 59   118  
  30AHT 42   83  
  50AHT 32   64  
  70AHT 25   54  
  100AHT 23   46  
  150AHT 19   37  
For 10% volt drop variation
Maximum Workpiece Temperatures (°C)
T6 T5 T4 T3 T2 T1 Safe
   15AHT - 36 71 160 289 350 350
   30AHT - 11 28 100 246 323 323
   50AHT - - - 39 178 276 276
   70AHT - - - - 48 140 140
   100AHT - - - - 48 140 140
   150AHT - - - - - 36 36
Surface temperature limits in acordance with EN60079.


Approvals and Certification
AHT 19ATEX3387
Trace Heating Cable Systems 08ATEX3096X
AHT,DESTU 1350782
AHT DESTU 1352981
AHT CML 19.0130
HTS1F MЮ62 B 01122/19
AHT CNEx19 1551U
AHT Chinese Version
Product and Application Datasheets
Design Installation & Maintenance Guide
'T' Class Label Instructions
AHT & RHT Node Location
Node Location Graphs

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