Motor Starters

The Gresham Range of Motor Starters are 440V I/P and O/P.  They also have under-voltage and phase rotation protection and incorporate trip functions derived from the motor.  These motor starters are perfect for rugged environments and naval defence applications.

 

The Gresham Range of Motor Starters are 440V I/P and O/P.  They also have under-voltage and phase rotation protection and incorporate trip functions derived from the motor.

Each motor starter includes:

  • Lockable isolator switch
  • Contactor for motor control
  • A suitably sized, control transformer with primary fuses and secondary fuses
  • Either two stage overload protection (alarm and trip) using two sets of thermistors (3 thermistors per set) or thermal overload relay protection
  • Under-voltage and single phasing protection
  • Reset pushbutton
  • Selector switch: Off/Local/Remote
  • Start pushbutton
  • Stop pushbutton
  • Running indication LED (Green)
  • Alarm indication LED (Yellow)
  • Tripped indication LED (Red)
  • Supply available LED (White)

Remote Interphases included with each Gresham Motor Starter

  • Three sets of terminals for remote stop signals operating in both local and remote modes.(non-momentary, normally closed, open to stop)
  • Two sets of remote stop terminals only operating in remote mode (momentary, normally open, close to stop)
  • Two sets of remote start contacts only operating in remote mode. (momentary, normally open, closed to stop)
  • One set of terminals for three wire remote start/stop signals only operating in remote mode. (momentary, normally open, close to start/stop).
  • 1 set of volt free contacts to indicate motor running
  • One set of volt free contacts to indicate motor tripped
  • 1 set of volt free contacts to indicate starter in remote mode
  • One set of volt free contacts to indicate starter in alarm (thermistor 130deg C)

Optional features for the Gresham motor starters:

  • Overload relay, additional trip and alarm inputs, aspirator control, reversing, hour run meter.
  • Ingress Protection IP44
  • Ambient Temperature.
  • 0°C to + 60°C. Relative Humidity 10% to 95% non-condensing.

For more information, contact us.

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Download Spec Sheet Here.