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PRECHARGE CONTACTOR

Pre-charge contactors connect resistors in series with traction converter to limit inrush currents during capacitor charging transients.

A specific design makes our pre-charge contactors fit with high-peak making currents.

  • High making current capability through special contact tips
  • Compact size
  • Ability to work on AC and DC applications
  • Wide variety of designs fitting most installation requirements
View LTC Series
View LTHH/LTE/LTP Series
View LTHS Series
View all Contactor's Series
Image Image Image Image Image Image Image Image Image
Series
Size
Poles		 LTC
100
1NO

 LTHH
40
1NO

 LTCS
250
1NO

 LTCH
250
1NO

 LTCS
300
1NO

 LTCH
300
1NO

 LTHS
320
1NO

 LTCH
60
1NO

 LTHH
100
1NO
Rated Operational Voltage
(up to)		 [V] 900 1800 1800 1800 1800 1800 1800 3600 3600
Thermal Current @ 75°C [A] 80 40 200 200 270 270 320 50 100
Fault Making Capacity [kA] 0.9 1.2 2.4 2.4 2.4 2.4 4.8 1.2 2.4
DC Rated Operational Current
(L/R=15 ms)		 900 Vdc [A] 16 100 65 100 65 100 300 80 460
1800 Vdc [A] - 50 16 20 16 20 150 40 230
3600 Vdc [A] - - - - - - - 16 110
DC Max Breaking Current (L/R=5 ms) 900 Vdc [A] 25 115 130 150 130 150 750 120 500
1800 Vdc [A] - 60 25 30 25 30 275 60 250
3600 Vdc [A] - - - - - - - 30 125
AC Rated Operational Current
(cosphi = 0.8)		 900 Vac [A] 16 100 65 100 65 100 300 80 460
1800 Vac [A] - 50 16 20 16 20 150 40 230
3600 Vac [A] - - - - - - - 16 110
AC Max Breaking Current (cosphi = 0.8) 900 Vac [A] 40 160 160 200 160 200 750 200 660
1800 Vac [A] - 80 80 100 80 100 275 100 360
3600 Vac [A] - - - - - - - 50 180
Dimensions Length L [mm] 106 200 140 154 140 154 221 168 377
Width W [mm] 63 48 89 89 89 89 86 80 60
Height H [mm] 128 163 157 177 157 177 301 240 274
Weight [kg] 1.1 1.8 2 2.2 2 2.2 4.9 3 6.5

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All rights reserved, including industrial property rights application.
Knorr-Bremse AG and Microelettrica Scientifica SpA retain any power of disposal, such as for copying and transferring.

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