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General Purpose – WSES Series

Efficient Soft Start Control Panel System
The World Start Efficient System (WSES) combines a reduced-voltage chassis starter, ancillary components, and controls to provide a single, cost-effective system suitable for operating equipment with basic performance requirements, such as pumps, fans, or motors.

The WSES features an intuitive parameter setup and multiple feature sets. Operationally the “At Speed / Run Bypass” mode takes over the motor load control from the SCR units after the motor is at full speed. This feature reduces panel heat during RUN mode. Emergency full-voltage bypass is not part of this system.

The secure lockable panel, with padlock disconnect, protects the ancillary components: terminal block, panel surge protection with the main circuit breaker, pilot devices, and other options, and provides a maintenance-friendly yet compact design.


  • Standard pump and fan applications
  • Constant current and current ramp soft start selectable modes
  • Voltage ramp soft stop
  • Coast to stop
  • 250% to 450% adjustable current limit
  • 5-60 hp, 230 V, three-phase,
  • 10-150 hp ,480 V, three-phase,
  • Input voltage range:
    – 200-230 V three-phase (-15%, +10%)
    – 380-480 V three-phase (-15%, +10%)
  • Control voltage 110-240 Vac (-15%, +10%)
  • Configuration dials on the front of chassis unit
  • Door-mounted Start / Stop pushbuttons
  • Programmable output on chassis unit
  • Motor protection: motor overload, motor thermistor input, current imbalance, excess start time, and more
  • Two-phase control of three-phase power
  • Chassis provides status feedback LEDs
  • Optional remote operator keypad
  • Optional Modbus or Ethernet cards
  • Assembled per UL508A



Model Number HP @ 230V HP @ 460V Enclosure Type
75150NEMA 4
60125NEMA 4
50100NEMA 4
3075NEMA 4
3060NEMA 4
2040NEMA 4
1020NEMA 4