Motor isolation contactor

25 Jul

Motor isolation contactor

The purpose of the motor isolation contactor is to isolate the permanent-magnet propulsion motor in case of faults to the inverter.

Our contactors have been successfully adopted on railway vehicles since the first permanent magnet propulsion application.

  • Service-proven air circuit breaking (No vacuum vase)
  • Breaking capability up to 400 Hz
  • Fast switching
  • Optimized size and weight
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Series
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Poles


 LTHS
320
3NO
Rated Operational Voltage
(up to)		 [V] 1800
Thermal Current @ 75°C [A] 320
Short Circuit Withstand Current for 5ms [kA] 8
Fault Making Capacity [kA] 4.8
AC Rated Operational Current (cosphi = 0.8) 900 Vac [A] 300
1800 Vac [A] 150
AC Max Breaking Current (cosphi = 0.8) 900 Vac [A] 1200
1800 Vac [A] 600
Dimensions Length L [mm] 221
Width W [mm] 172
Height H [mm] 311
Weight [kg] 11.2