RMC-121D

Current relay

The RMC-121D combined short circuit and over-current relay is applied for protection of generators against both over-currents and short circuit currents.

RMC 121D Front
RMC 121D Angle
RMC 121D Side
RMC 121D Back
RMC 121D Front
RMC 121D Angle
RMC 121D Side
RMC 121D Back

The RMC-121D combined short circuit and over-current relay is applied for protection of generators against both over-currents and short circuit currents (I> + I>>).

RMC-121D has two sets of contacts.

Variants

RMC-111D

  • Short circuit
  • I>>: 100 to 400 %. <50 mS response time

RMC-121D

  • Short circuit
  • I>>: 100 to 400 %. 2 sets of contacts (parallel)

RMC-122D

  • Short circuit and over-current
  • I>>: 100 to 400 %, I>: 50 to 150 %
  • Combined functionality

RMC-131D

  • Differential current
  • I>>: 100 to 400 %. 2 sets of contacts (parallel).

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