Rue des Sapins – ZI de la Castine
54730 GORCY – France
current detection, threshold control, overload detection, etc.
These relays are used in applications such as current detection, threshold control, overload detection, ground fault detection, engine start, etc.
Relays of this type are characterized by a larger section winding. Depending on the current constraints, it can be used from large diameter enamelled wire to sets of bars of several hundred square millimetres of cross-section. These relays cover a current range trom 1A to 15000A (DC or AC).
The relay operation points can be made adjustable, either by the use of micrometric adjustment contacts, or by adding a second winding additional or subtractive controlled by a rheostat.
For trackside installations, this ground fault detection relay measures the DC current from the frame to the ground.
Mainly installed in metro and tram DC substations, the relay is connected between the ground and the cubicle frame. In the event of an isolation failure, the fault current flows through the relay that picks it up. No auxiliary power is required.
As an option, a permanent magnet gives the relay the ability to stay engaged even if the defect disappears, a button allows manual rearmament. With this option, the relay can detect AC or DC current.
Faston 5mm, Faston 6.3mm, single or double
Screw terminals for eyelet lug M4, M5, M6
Push-in type insulated connector
Other possible solutions on request
1- Contact normally closed
2- Moving armature
3- Contact normally opened
4- Magnetic circuit
5- Permanent magnet
A- ALNICO MAGNET
B- RARE EARTH MAGNET
Trolley box, Mexico metro
RATP Circuit Breaker Cabinet
