Soft Starters

Technical Solutions 24 Seven are the UK agents for Elettronica Santerno. Santerno range covers a wide power range and incorporates a number of different starters to suit all of the different applications.

Simple cost effective two phase soft starts with very simple programming to fully featured digital soft starts with a wide range of programming options are available.

We can engineer and programme the soft starts to suit your application.

ASAC1 Grande

SOFT START/STOP static starters for three-phase asynchronous motors up to 110kW

ASAC0 is the right solution to save space and keep costs under control.

ASAC1, besides the features of ASAC0, grant a reliable motor protection and current control.

Range 7.5 kW – 110 kW

Power supply voltage range: 200-440 VAC, 200-575 VAC

Internal Bypass Contactor

Input frequency 50-60 Hz

Technical Specifications

  • Compact dimensions
  • Internal bypass contactor
  • IP20 enclosure (<=ASAC 55)
  • 3 adjustments: initial start voltage, start ramp time, soft stop ramp time
  • 6 indications: no control power, ready, starter tripped, motor not running, motor running at full speed,  motor starting or stopping
  • 3 alarms: power circuit, supply frequency, communication failure
  • 2 digital inputs: start, stop
  • 1 output relay: main contactor relay
  • Local reset
  • Standard approvals: CE IEC 60947-4-2, UL/CUL UL508, CSA 22.2 No14, C-tick AS/NZS3947-4-2, CISPR-11


  • 8 adjustments: motor FLC, current ramp, current limit, motor trip class, soft stop time, , excess start time, phase sequence protection, auxiliary relay function
  • 6 indications: no control power, ready, starter tripped, motor not running, Motor running at full speed, Motor starting or stopping
  • 8 alarms: power circuit, excess start time, motor overload, motor thermistor, phase imbalance, supply frequency, phase sequence, communication failure
  • 3 digital input: start, stop, motor thermistor probe
  • 2 output relay: Main contactor relay, Programmable relay
Options (ASAC0/ASAC1)
  • 24 VAC/VDC control power supply
  • Fast fuses
  • Remote control panel (RS485 doubler, one 4-20 mA output)
  • Control supply transformer for input voltage >400 VCA
  • RS 232/485 converter
  • Serial communication port with MODBUS RTU DeviceNet, Profibus, ASI protocol
Download Catalogue
Download Manuals

ASA Group

SOFT START/STOP static starters for three-phase asynchronous motors up to 1500kW

Range: 12 A a 2361 A

Power supply voltage range: 200 VAC – 690 VAC

Input frequency: 50-60 Hz

6 wire connection mode

Technical Specifications
  • 4 types of motor starting (constant current, current ramp, torque control, kickstart)
  • Stopping (soft stop, pump stop, soft braking,)
  • 3 wire and 6 wire connection (maximum 440 VAC for 6 wires connection)
  • IP54 protection degree (<=ASA 253)
  • Thermal motor protection
  • PTC motor thermistor input
  • Operation with and without by-pass contactor
  • Integrated multimeter
  • Trip log
  • Undercurrent protection (pumps’ anticavitation)
  • 5 digital inputs: start, stop, reset, motor thermistor, 1 programmable input
  • 4 relay outputs: 1 ramp end, 3 programmable output
  • 1 programmable analog; output 4-20mA
  • RS485 serial communication with MODBUS RTU protocol
  • Standard approvals: CE: IEC 60947-4-2     UL/CUL: UL508, CSA 22.2 No14     C tech: AS/NZS3947-4-2, CISPR-11
  • ASA series has been developed to offer soft start solutions for marine industry
Download Catalogue


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