Connecting braking resistors in parallel

It is permitted to connect several identical braking resistors in parallel. In that case, the following applies:

  • Connect the power connections of the braking resistors to +R and -R in parallel.
  • Pay attention to the minimum permitted braking resistance value RBRmin when connecting braking resistors in parallel.
  • For BW.. braking resistors, each braking resistor requires separate protection against thermal overload, e.g. an external thermal overload relay.
  • For BW..-T braking resistors (T = with integrated temperature switch), the signal contacts (NC contacts) must be connected in series.