KHUSHALI ENTERPRISE

Dold

Relay Modules

Softstarters

DOLD softstarters ensure a soft and jerkless starting of your asynchronous motors. This reduces wearing and improves the service life of your motors and mechanical drive components. Application areas include:

  • Machines with geared, belt and chain drives
  • Conveyors, fans, pumps, compressors
  • Wood working machines, centrifuges
  • Cranes, travelling and slewing gear, elevators
  • Easy installation by snapping on a top hat rail
  • Space-saving by compact design with integrated bypass relay
  • Improve safety by integrated temperature monitoring
  • Improve setting flexibility by separate setting of starting time, locked-rotor torque and deceleration time
  • More application flexibility, suited for a wide motor voltage range
  • Take off load from the supply system by reduction of starting currents

Starting methods for motors are the starting current as well as the starting torque

To get this under control it is the best to reduce the clamp voltage of the motor.

The following procedures have been developed until now:

  • starting transformer
  • starting resistor 3-pole
  • starting resistor 1-pole (KUSA- circuit)
  • star- delta switch

Application areas of DOLD softstarters include:

  • Centrifuges
  • Wood working machines
  • Cranes, travelling and slewing gear, elevators
  • Machines with geared, belt and chain drives
Softstarters MINISTART, 1-phase controlled
Function f. three-phase
motors, 400 V
up to [kW] 		f. single-phase
motors, 230 V
up to [kW] 		Diverse
signalling
outputs		 Load
voltage [V]		 Auxiliary
voltage
required		 Extra functions:
Temperature /
system monitoring		 Width
[mm]		 Type
Standard 1.5 to 230 35 IL 9017, SL 9017
with softstart function 1.5 to 230 35 IL 9017/300
Standard 5.5 1.5 to 480 45 BA 9010
Standard 11 3 to 480 100 BN 9011
with softstart function 7.5 + 100 to 480 + T, N 90 BI 9028/900
Softstarters MINISTART, 2-phase controlled
Function f. three-phase
motors , 400 V
up to [kW] 		Diverse
signalling
outputs		 Load
voltage [V]		 Auxiliary
voltage
required		 Extra functions:
Temperature /
system monitoring		 Width
[mm]		 Type
with soft coasting and reverse function 0.75 + 200...400 + T 72 RP9210/300
with soft coasting 110 + ... 575 + T,N 98; 145;
202
with soft coasting 22 + ... 480 T, N 45; 52.5 GF 9016
with soft coasting 5.5 200 ... 480 + T 45 BA 9019
with soft coasting 11 200 ... 480 + T 90 BL 9025
with soft coasting 15 200 ... 480 + T 90 BI 9025
with soft coasting 7,5 + ... 400 T, N 45
with d.c. braking 15 + 200 ... 480 + T, N 90 BI 9028
with d.c. braking and
standstill detection		 15 + 200 ... 480 + T, N 112.5 BL9028 /td>
Softstarters MINISTART, 3-phase controlled
Function f. three-phase
motors , 400 V
up to [kW] 		Diverse
signalling outputs		 Load
voltage [V]		 Auxiliary
voltage
required		 Extra functions:
Temperature /
system monitoring		 Width
[mm]		 Type
with softstart function 800 200...525 + T, N 156...750 GI 9015
with softstart function 3 200...480 + T 45 BA 9026
with softstart function 55 + ...690 T 235; 335