This solution uses a connection in Open Delta.
In this case the sizing of the unit is done using Line Current (motor current) devided 1,73.
For this reason it’s possible to select a smaller Soft Starter.

STE_Soft_Starter

STE

Current 3,0In

In This case the value is the equivalent of the size

Size

38  38
59  59
76  76
130 130
138 138
225 225
260 260
285
285
398
398
779
779
865
865

STE Soft Starter Main Feature

4.5 Wire Connection
STE
INTERNAL BY PASS RELAY  
EXTERNAL BY PASS RELAY
CONTINUOS SERVICE VIA SCR (NO BYPASS)
RAMP UP
RAMP DOWN
TORQUE CONTROL
COSTANT CURRENT CONTROL
RAMP UP CURRENT CONTROL
KICKSTART 80% VOLTAGE 200 m. SEC
PHASE LOST/UMBALANCED LOAD
SHORT CIRCUIT ON THYRISTOR
OVER VOLTAGE
UNDER VOLTAGE
UNDER CURRENT PROTECTION (PUMP)
OVERTEMPERATURE ON HEATSINK
OVERLOAD WITH CURVE SELECTION
PTC MOTOR THERMISTOR/CLIXON
LONG START TIME (STALL PROTECTION)
DIGITAL INPUT (START/STOP)
4:20mA/0:10V/Pot SET FOR CONTR.SERVICE
FRONTAL DIGITAL CONTROL PANEL
INTEGRATED MULTIMETER
RELAY TO ENERGIZE LINE CONTACTOR
RELÈ FOR EXTERNAL BY PASS
TWO CONFIGURABLE NPN OUTPUT
ONE ANALOGUE OUTPUT (POWER VALUE)
DYNAMIC BREAKING
 Opt.
IP20 PROTECTION
RS485 MODBUS RTU COMM
PROFIBUS AND ETHERNET MODBUS TCP
 Opt.
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