Thermoset cabinets

Thermoset insulation cabinets / polyester cabinets of the STN type consist of elements made of the SMC reinforced with glass fiber thermoset plastic.


Our boxes are used for external solutions wherever high mechanical strength and resistance to weather conditions and UV radiation are required. In particular, they are used in the market of low voltage (LV) electricity distribution in AC and DC systems, as well as in the photovoltaic, telecommunications and rail industries.


All cabinets have prepared places for load-bearing structures for electrical devices mounting.

The cabinets  are characterized by a module structure which allows the switchgear to be configured freely, a ribbed surface which additionally enforces the structure.


We also offer cabinets protected with polyurethane laquer in any color from the RAL palette, resistant to UV radiation.


The construction of the cabinets ensures an effective gravity ventilation system.

Primary parameters and standards met by the ST and STN cabinets are presented below:

  • Insulation rated voltage -  1000V AC / 1500V DC
  • Rated current - 630A
  • Protection degree - IP 44,IP 54, IK 10
  • Protection class - II
  • Colour - RAL 7035
  • Flammability category -V0
  • Resistance to excessive heat - 960°C
  • Weather resistance - test UV

All our cabinets have undergone detailed tests in an accredited laboratory and have certificates confirming their high parameters and compliance with the relevant standards and directives of the European Union:

  • PN-EN 61439-1;
  • PN-EN 61439-2;
  • PN-EN 61439-5;
  • PN-EN 62208;
  • PN-EN 60529;
  • PN-EN 62262;
  • PN-E 05163

See the detailed range of accessories in our product catalog