Soft-Starter

The portable NOLTA Soft-Starter for heavy applications offers many advantages, e.g:

  • Portable and easy to move
  • Prevents damages caused by hydrolock
  • Adjustable start-/stop-Ramp
  • Integrated thermo-magnetic motor protection
  • Thermal contact (bimetallic)
  • Easy to operate with manual/automaic selection switch
  • Connection hub for float switches, level controller and level probes.
  • Passive and active cooling for increased switch-cycle
  • Bright color housing for better visibility
  • Compatible with all float switches in the NOLTA catalogue


The connection can be done directly or through the separately available easy-connection-sets.

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Available versions

Please select your power rating

Adjustment RangeOrder Number
12,10 - 18,20 A80 19051
17,00 - 26,00 A80 19052
24,00 - 37,00 A80 19053
Other versions available upon request
Connection Set Article number
Connection-Set CEE 32A 3m 03 3203
Connection-Set CEE 63A 3m 03 6303

Technical Data

Rated operating voltage: 400 VAC
Softstarter operating current max.: IEC  30,0 A
UL   28,0 A
Rated power AC3/400 V: max. 15 kW
Frequency: 50 - 60 Hz
Switch cycles: max. 20 Starts/h
Operating Temperature: - 25°C ... + 50 °C
Motor protection tripping chart: See chart in manual
Housing: Solid rubber
Signal yellow RAL 1003
Ventilation: Fibox
Protection class: IP 44
Cable glands x2:               PG 29 (13 – 20 mm)
M16 (4-10 mm)
Dimensions: 360 x 340 x 330 mm
(L x W x H incl. handle)
Weight: 12,0 Kg
Adjustment RangeOrder Number
12,10 - 18,20 A80 19051
17,00 - 26,00 A80 19052
24,00 - 37,00 A80 19053
Other versions available upon request

Technical Data

Rated operating voltage: 400 VAC
Soft starter operating current max.: IEC  45,0 A
UL   46,2 A
Rated power AC3/400 V: max. 22kW
Frequency: 50 - 60 Hz
Switch cycles: max. 20 Starts/h
Operating Temperature: - 25°C ... + 50 °C
Motor protection tripping chart: See chart in manual
Housing: Solid rubber black
Ventilation: Fibox
Protection class: IP 44
Cable glands x2:               M40 (16 – 28 mm)
M16 (4-10 mm)
Dimensions: 565/450/460 mm
(L/W/H incl. handle)
Weight: 24,5 kg

Tripping characteristic

500032 500033 500034 500035 70 500032 70 500033 70 500034 70 500035