Working Evironment


Power Junction Box

EPJB power junction box is designed for EPOLY’s SR heating cables for hazardous and non-hazardous areas. It can also serve as an intermediate junction box for the splicing of two individual heating cables. T-Standoff reduces the risk of damage to the cable at the termination, and also facilitates further process inspection and maintenance. A metal stand is available when the temperature exceeds 180°C.



  • Feed-through terminal block with spring clamp makes the connection easy and reliable.
  • The quantity of terminals can be adjusted according to the number of cables to make sure each wire has a dedicated connecting block.
  • The power cable can be installed through any of the three openings of the box.
  • EPJB can also serve as a splice junction box with three openings available for splicing heating cables.
  • The box can be installed using T-Standoff or be wall mounted by the two external mounting holes.
  • The lid is hinged at the box and its bolts and nuts are embedded in the box, so no worry for dropping them especially at aloft work.


  • Maximum Voltage: AC240V
  • Maximum Current: 40A
  • IP Code: IP65
  • Minimum Installation Temperature: -30°C
  • Minimum Ambient Temperature:-40°C
  • Maximum Ambient Temperature: +55°C
  • Maximum Pipe Temperature:+180°C                                                             (Please switch to metal stand once over 180°C)
  • Terminals:Live, Neutral, Earth
  • Maximum Conductor Diameter: 6mm²

Manufacturing Excellence

E-POLY Technology-Advanced Heat Trace Solutions

E-POLY is a manufacturer of Heat Trace Cable, dedicated in the design and manufacturing of trace heating cable for snow melting, roof de-icing, pipe freeze protection, radiant floor heating and process heating.

No.12, Lingbo Road, Economic Development Area, Gaoyou City, Jiangsu Province, China. All rights reserved.

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E-POLY Technology – Manufacturing ExcellenceNo.12, Lingbo Road, Economic Development Area, Gaoyou City, Jiangsu Province, China.All rights reserved.