LTPD/LTSD roof disconnectors
are off-load switches, also called pantograph disconnectors. Depending on the model, they can connect, earth, and isolate the traction transformer from the pantograph.
They are motor operated devices, designed to be installed outdoor, on the roof of an electric traction vehicle. Based on your application, you can select one of two versions:
- LTPD version, Normally Open disconnector
- LTSD version, Change Over disconnector. One input can be connected to one of two outputs to configure the followings:
- Load position vs Earthing/Emergency position
- Load position 1 vs Load position 2
Both models are suitable for single-voltage as well as for multi-voltage vehicles, covering all the typical railway line voltages (1,5 kVDC
; 3 kVDC
; 15 kVAC
and 25 kVAC
) as well as the different vehicle’s currents rated up to 2000 A.