Microswitch wiring query

Firefox

Firefox

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The mixer tap on my smev sink came with a microswitch. The wires coming off the microswitch are very thin. They look as though they would take only 3 amp at the most.

Most pumps have a greater current rating than this, I wonder if I should wire the switch via a relay to operate the pump, or how other people have their tap microswitches wired in.

I'm concerned if I wire it direct to the pump, I'll overload these wires or burn out the microswitch contacts.
 
I've got electric taps (well wires that hang out of them), thin wire almost electronics standard. Personally I'd just run with whatever Smev have fitted, I'd say that they know their business by now - 40? plus years in the caravan/campervan business
 
Roger said:
I've got electric taps (well wires that hang out of them), thin wire almost electronics standard. Personally I'd just run with whatever Smev have fitted, I'd say that they know their business by now - 40? plus years in the caravan/campervan business
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In the wiring diagram for my Hymer S700 it shows all tap wires run to a relay that operates the pumps. It has two pumps in tandem inside the tank.
 
Boxerman said:
Personally I'd use a relay.

Frank
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It depends on the type of pump that the switches are operating. Our old FFB motorhome had this type of microswitch, the pump was a small submersible that probably only pulled around 1A.

Best thing is to check the current rating of the pump.

AndyC
 
Thanks for the replies. The relay seems a good move as it is one way of wiring a lot of switches to operate the same thing. I think you can buy spare relays at Halfords.
 
Never run anything straight from the microswitch always use a relay even if the switch is rated high enough.
 
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