User Manual, Power contactors, series CT1115/08 and CT1130/08
Rev. 2.2 Page 9/26
CT1000 contactors consist of two main modules:
Lower Module:
Magnetic drive (MD) with moving contact bridge (MC, not visible);
base plate (BP); auxiliary contact group (AG); coil terminal group
(TG); AG and TG are under protection caps.
Upper Module:
Fixed contacts with main terminals (FC); arc chamber (AC); latch-
ing levers (LL) and lock bars (LB)
Magnetic drive (MD) with moving contact bridge (MC)
- Compact magnetic drive system for DC voltages.
- Designed for standard railway supply voltages and tolerances.
Standard nominal supply voltages are U
s
= 24 V and U
s
= 110 V,
tolerances from 70% up to 125% of U
s
. Other nominal supply
voltages are available on request.
- Double-break moving contact bridge.
- Polarity independent overvoltage protection device.
Base plate (BP)
- 4 fixation holes
- Earthing terminal
The contactor should be mounted on a metal rack to provide a se-
cure mounting as well as a heat sink for the magnetic drive.
The value of the overvoltage limitation is part of the
magnetic system and must not be changed or short-
circuited by external means. It is explicitly stated that the
use of diodes is prohibited for that purpose. Take care
there is no such diode in the external control circuit.
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