julianf
Member
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- 7,976
- Location
- devon, uk
This is hurting my brain.
The only parts in play at present are some illuminated rocket switches and a solid state relay.
Live goes to relay switched side.
No control input at all
In this case, with nothing else connected, there's 240/230 on the live terminal and 0 on the switched side, as expected, when measured against earth.
So then, what I want is to take the output side and wire it to these illuminated rocker switches -
So as the relay has control over all the outputs (only one will be used at a time, hence wanting three with manual switches)
So relay, then switch then socket.
But the madness I'm encountering -
This is the back side...
Top spade on the switch is, so far as I can tell, the live input, center terminal (when measured with the multimeter) is connected or disconnected to the top terminal according to the switch position and bottom terminal, so far as I can tell, is the neutral for the switch illumination.
So this is where I think I'm going wrong, as if I connect the switched side of the relay to the top terminal and the neutral to the bottom terminal, the switch illuminates.
...even though there's no control input to the relay.
And I see 150v or so on the live side of the switch. Even though it measures zero before I connect the neutral.
Is this some function of solid state relays that I've never encountered before? I've only ever used them for controling heating elements. Is it that they don't shut off the current enough to stop an illuminated switch illuminating, but, for other applications, they're effectively "off".
Or have I just stuffed up my wiring?
Thank you.
The only parts in play at present are some illuminated rocket switches and a solid state relay.
Live goes to relay switched side.
No control input at all
In this case, with nothing else connected, there's 240/230 on the live terminal and 0 on the switched side, as expected, when measured against earth.
So then, what I want is to take the output side and wire it to these illuminated rocker switches -
So as the relay has control over all the outputs (only one will be used at a time, hence wanting three with manual switches)
So relay, then switch then socket.
But the madness I'm encountering -
This is the back side...
Top spade on the switch is, so far as I can tell, the live input, center terminal (when measured with the multimeter) is connected or disconnected to the top terminal according to the switch position and bottom terminal, so far as I can tell, is the neutral for the switch illumination.
So this is where I think I'm going wrong, as if I connect the switched side of the relay to the top terminal and the neutral to the bottom terminal, the switch illuminates.
...even though there's no control input to the relay.
And I see 150v or so on the live side of the switch. Even though it measures zero before I connect the neutral.
Is this some function of solid state relays that I've never encountered before? I've only ever used them for controling heating elements. Is it that they don't shut off the current enough to stop an illuminated switch illuminating, but, for other applications, they're effectively "off".
Or have I just stuffed up my wiring?
Thank you.