It seems that the middle wires ( blue brown ) will be controlling the relay to switch the bigger cables.
You can test this with a volt meter. Does pushing the button give a positive voltageon those wires when disconnected from that ( what we assume is ) the relay
I would assume it is switching 12/24v dc. again your volt meter can confirm.
The current will be quite large given the wire size and a high current relay is also known as a contactor. Ebay will likely get you something that works
Thank you very much for your quick replies. It does look like the solenoid from Steve's ebay-link.
I've added a bigger pics for a better view. The red circle identifies the only text I can find on the solenoid. I assume that the bigger the solenoid the better, no? It should not be a problem to oversize?
its a fairly standard solonoid, you just need to check if your passerel is 12 or 24V
and then the devices as on the ebay link will do.
I also have a Gandola passerel,
as you probably know, Gandola doesn't exist anymore, but we have been able to find almost every part elsewhere,
(such as: pump motor, hydraulic hoses, "end of track" switches, electric switchbox relay's,...)
do you mind posting pictures from the pump and the passerel, to compare with mine ?
most likely continuous, however unless you measure with a decent DC AMP clamp you don't know what it consumes...
I've actually measured my ALMAR (iirc) 2.7m passerelle current consumption (trying to find what fuse to use for it) and it was 30A odd @24V and peaking toward 40+ at the end of each travel (either OUT/IN, or UP,- down doesn't use the pump, just open the solenoid and empty the cylinder through gravity).
So for 12V and depending on the size of the paserelle, numbers look okayish