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50 hp (37KW) Hybrid Soft Starter, 220V/380V/480V/690V

50 hp (37KW) Hybrid Soft Starter, 220V/380V/480V/690V
50 hp (37KW) Hybrid Soft Starter, 220V/380V/480V/690V
50 hp (37KW) Hybrid Soft Starter, 220V/380V/480V/690V
50 hp (37KW) Hybrid Soft Starter, 220V/380V/480V/690V
50 hp (37KW) Hybrid Soft Starter, 220V/380V/480V/690V
50 hp (37KW) Hybrid Soft Starter, 220V/380V/480V/690V
50 hp (37KW) Hybrid Soft Starter, 220V/380V/480V/690V
  • Stock: In Stock
  • Model: PEACO-ZJR2-B3370
Ex Tax: $898.67

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The hybrid soft starter is equipped with built-in bypass contactor to make three phase induction motors in soft start and soft stop. 50 hp (37) kW capacity, three phase 380V, 415V, 440V, 480V, 690V, etc., 75A high current at 380V. Easy to control, longer using life, competitive price.

Soft Starter User Manual : Peaco Support soft starter user manual.pdf


  • This series soft starter comes with built-in contactor and provides 3 relays inside. There is no need to add external contactor.
  • The soft starter with built-in contactor can work with three phase AC motor and protect the motor from excessive current generated during the accelerating of large torque at starting of motor.
  • 16 SCM control and intelligent digital display are available with the motor soft starter.
  • High performance soft starter can control multiple motors.
  • Effective soft starter with starting modes: current limiting start, voltage ramp start, kick start +current-limiting start, kick start +voltage ramp start, current ramp start, voltage current-limiting double closed -loop start.
  • Reliable soft starter features free stop and soft stop. The stop time can be selected freely from 0 to 60 seconds.
  • With full protection functions, overcurrent, overload, overheat, low voltage, high voltage, load short circuit, phase loss, phase loss, instantaneous stop, three-phase unbalance protections.
  • It is easy to install and simple to operate, featuring full and strong functions.


Product Name: Soft starter with internal bypass
Model: PEACO-ZJR2-B3370
Capacity: 50 hp (37 kW)
Current: 75A at 380V
Input Voltage*: Three phase 220V, 240V, 380V, 400V, 415V, 440V, 460V, 480V, 690V (optional)
Frequency: 50Hz/ 60Hz
Adaptive Motor: Squirrel-cage three-phase asynchronous motor
Starting Times: It is recommended not to exceed 20 times per hour.
Control Mode
1) Operation panel control.
2) Operation panel + external control.
3) External control.
4) External control + COM control.
5) Operation panel + external + COM control.
6) Operation panel + COM control.
7) COM control.
8) No start or stop operation.
Start Mode
1) Current-limiting to start.
2) Voltage ramp to start.
3) Torque control + current-limiting to start.
4) Torque control + voltage ramp to start.
5) Current ramp to start.
6) Voltage current-limiting double closed-loop start.
Stop Mode
1) Soft stop.
2) Free stop.
Protective Function:
1) Open loop protection for external instantaneous stop terminals.
2) Over-heat protection for soft starter.
3) Protection for too long starting time.
4) Input open phase protection.
5) Output open phase protection.
6) Unbalanced three-phase protection.
7) Starting over current protection.
8) Running overload protection.
9) Under voltage protection for power voltage.
10) Overvoltage protection for power voltage.
11) Protection for fault parameter setting of the soft starter.
12) Load short circuit protection.
13) Auto restart or incorrect wiring protection.
14) Incorrect wiring protection of external control stop terminals.
Place to be used: Indoor location with good ventilation free from corrosive gas and conductive dust.
Altitude: Below 1000M. It has to increase the soft starter rate power when the altitude is more than 1000M.
Temperature: -30℃~+55℃
Humidity: ≤90% RH (without dew condensation)
Vibration: <0.5G
Enclosure: IP 20
Cooling: Natural wind cooling.
Certification: CE, ISO9001
Warranty: 12 months
Outline Dimension (W1*H1*D): 145*270*160mm
Installation Dimension(W2*H2*d): 130*245*M6
Weight: 3.5 kg

Note: * denotes optional parameters and you can select every parameter in drop-down lists to complete your order.

Softer Starter Outline & Installation Dimension (Unit: mm)

Softer Starter Dimension

Soft Start Wiring Diagram

Soft Start Wiring Diagram

Soft Starter Details

Soft Starter Details

  • Simple control panel. The control panel can be removed to clean, easy to operate, real-time data display on LCD screen.
  • Smart mainboard. Soft starter features fast response, multi-functions.
  • Power control transformer. It comes with energy saving, circulating circuit, high quality coils with insulation isolation.
  • Mutual inductor. the mutual inductor makes the soft starter more standard for measuring instruments, protection equipment and automatic control equipment.

Soft Starter Application

This series motor soft starters are widely used for motor starting in centrifuges, blowers, compressors, conveyors, mixers, ball mills and other mechanical equipment.

Soft Starter Application

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