Arc-tested housings

Type ZT-31,5

For cast-resin transformers

The ZT-31,5 series has been developed with safety for man and machine in a prime position. Both versions – for outdoor or indoor installation – provide maximum safety and ease of installation.

  • Arc tested according to DIN EN 60298 (VDE 0670 Part 7 ) :
    1998-05 and PEHLA Guidelines No. 4: 1995-01
  • Surge current 80.0 kA, Short-circuit current 31.5 kA
    Duration of 0.3 sec
    Degree of protection according to IEC 60529 529/EN
    heating test

Can be equipped with:

  • Busbar system up to 3600 A
  • Temperature monitoring and fan control with temperature monitoring devices (TS)
  • Earthing switch with leading auxiliary switch
  • RAL color of your choice
  • Vibration absorber.

Type TGE-L / TGE-Q

For cast resin transformers


  • Installation longitudinal and transversal possible
  • Entry from all four sides possible
  • Sprinkler test
  • Increased arc protection

Arc tested according
DIN EN 62271-200/202:2012

Medium-voltage surge current 80 kA
Short-circuit current 31,5 kA
Duration 1 sec.
accessibility category A

Low-voltage surge current 242 kA
Short-circuit current 110 kA
duration 0,3 sec.
accessibility category A

Heating test

Protection class test according IEC 529 / EN 60529

IP 3x poke safe

Sprinkler test

10 bar, 20 min


Arc-tested transformer protection housing Type ZT-31,5
for cast resin transformers


Arc-tested transformer protection housing Type TGE
Arc fault Qualified transformer protection housing of the "new generation" type TGE-L / TGE-Q for cast resin transformers