Dold Industries Ltd

11 Hamberts Rd. Blackall Ind. Estate
South Woodham Ferrers
GB-Essex, CM3 5UW
UG 9256

Smart motorstarter

UG 9256


Nominal voltage

Ramp time

Nominal current

Approvals and Markings


  • 0063850
  • UG9256.11/61 3AC200-480V 9A 1-10S
The smart motorstarter function is a softstart, reversal and protection of 3-phase asynchronous... more

Product description

The smart motorstarter function is a softstart, reversal and protection of 3-phase asynchronous motors. Overcurrent is detected when the set current is exceeded longer than 2 sec. Direction reversal takes place via relay switching. The relays are de-energised at this. This ensures a long service life.

Technical specifications

Width: 22,5 mm
1- / 3-phase: 3
Auxiliary voltage: DC 24 V
Load voltage up to: 3AC 200 - 480 V
Load current up to: 9 A
On/Off Input Control: DC
Signalling output: Yes
Temperature monitoring: Yes
Approvals: UL
Type: UG 9256


  • Up to 6 function in one unit
    - Reversing anticlockwise
    - Reversing clockwise
    - Softstart
    - Softstop
    - Current monitoring or motor protection
    - Galvanic separation via forcibly guided contacts contact distance min. 0.5 mm
  • 80 % less space
  • Simple and time-saving commissioning as well as user-friendly operation through setting via potentiometers on absolute scales
  • Blocking protection
  • Hybrid relay combines benefits of relay technology with non-wearing semiconductor technology
  • High availablility by
    - Temperature monitoring of semiconductors
    - High withstand voltage up to 1500 V
    - Load free relay reversing function
  • As option with disabling current monitoring


  • According to IEC/EN 60947-4-2
  • To reverse 3 phase motors from 30 W to 150 W resp. 90 W to 750 W resp. 550 W to 4 KW at AC 400 V
  • 2-phase softstart
  • Max. 4 potentiometer für setting of starting torque, deceleration torque, softstart /-stop, overcurrent limit or rated motor current
  • 4 LEDs for status indication
  • Reversing with relays without current, softstart, softstop with thyristor
  • Galvanic separated 24V-inputs for clockwise- and anticlockwise
  • Reset button on front
  • Connection facility for external reset button
  • Relay indicator output for operation
  • Indicator output at customers specification (on request)
  • Galvanic separation between control circuit and power circuit
  • Width: 22.5 mm