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Star-Delta-Timers

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DOLD MK 7853N – Star-Delta-Timer

DOLD MK 7853N – Star-Delta-Timer

22.5 mmStar-Delta-Timer

Star-Delta-Timer

  • Limiting the starting current
  • Reduced power consumption of the three-phase motor during the start-up phase
  • Prevention of tripping of overcurrent protection devices

Star-delta timers BC 7936N and MK 7853N in 22.5 mm housings

DOLD lists two star-delta timers, both 22.5 mm wide, built to IEC/EN 61812-1, with a time range of 0.5 s - 100 s and AC or AC/DC nominal voltage. BC 7936N has two NO contacts, one fleeting make and one operate-delayed, a 2-voltage design, LEDs showing contact position and repeat accuracy of ≤ 0.5 % + 10 ms.

MK 7853N has one changeover and one NO contact, with repeat accuracy < ± 0.5 %. Its terminals take 2 x 1.5 mm² stranded ferruled or 2 x 2.5 mm² solid wire per DIN 46228-1/-2/-3/-4, and it can be ordered with pluggable terminal blocks, screw or cage clamp, for quick device exchange.

  • Time range 0.5 s - 100 s, 22.5 mm wide
  • BC 7936N: 2 NO contacts, LED indication
  • MK 7853N: 1 changeover + 1 NO contact
  • MK 7853N option: pluggable terminal blocks