Resistors design

Wirewound resistors (RC)

Rezystory serii RC

Wirewound Resistors (RC) are the most basic structures of wire-wound and band resistors mostly used as braking resistors, power resistors and load resistors with powers ranging from 50W to 15 kW. They are intended mainly for indoor applications.


The RC resistors consist of a ceramic roller wound on a wire or resistance band, depending on the load. The whole unit is covered by a special clay compound resistant to high temperatures. An advantage of the compound used by SIMPAX is that it does not emit smoke during the first use..

Operating conditions

  • continuous, cycle or pulse operation
  • indoor operation
  • operation in atmospheres being free from gases, explosive mixtures and corrosive vapours
  • ambient temperature
  • lowest long-term temp.: -5°c
  • highest 24-h temp.: 30°c
  • lowest short-term temp.: 55°c
  • relative humidity: up to 95% at +22 C (293 K)
  • mounting height: maximum 1000m above sea level
  • assembly: as per the attached drawings

Compliance with standards

  • PN-EN 60947-1: Low-voltage switchgear and control gear, Part 1: General rules
  • PN-EN 60071-1: Insulation co-ordination, Part 1: Definitions, principles and rules
  • PN-EN 60529: Degrees of protection provided by enclosures (IP Code)


  • 3 - 5 business days (for a batch of 1 - 5 pieces)
  • in exceptional circumstances, it is possible to reduce the delivery time to 3 business days



RC6 IP00
RC6 IP00 resistor
RC3 IP20 P
RC3 IP20 resistor with terminal box
RC6 IP23 D
RC6 IP23 resistor with cabel gland


SIMPAX sp. z o.o.

Grabonóg 76
63-820 Piaski
(k. Gostynia)

+48 65 571 20 60

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