Help with replacing 4-pole rocker switch with 3-pole one

General lounge
1

I’m trying to fix several oil heaters whose one/off rocker switch is broken. I took it apart and the part that needs replacement is a 4-pole rocker switch, included the schematics below:

image

nobody around here seems to carry this part - I checked a few electronics shops on main.

However the switch doesn’t use the 4th Pole - 2A on schematics (it has been removed before the heater was assembled it seems), i.e. only 3 wires are connected. 1 black wire goes to 1A, and 2 blue wires go to 3B and 4B. It’s also an illuminated switch, so I suppose the black wire is there just to drive the led.

So the question is - can I use a 3-pole rocker switch instead (those are in stock)? for example this one:

image.

Here is the full spec for the 3 pole switch.

So do you think I’d connect here the black wire to (3) and the blue ones similar to the original 4-pole switch? i.e. I’d remap:

4poles => 3poles
+++++++++++++
1A => 3
3B => 2
4B => 1

Could someone please validate that my re-mapping is correct? It’d be simple to remap with a normal switch but I have never dealt with one that uses a led, hence the confusion.

Thank you for your help.

2

I would suggest you get someone to check this first.

You want to join 1A and 2A to 3 together in a safe manner and map 3B to 2 and 4B to 1.

3

Thank you Tom for validating my thinking!

I don’t need to do anything about 2A, since as I tried to explain in the original post it is not being used (the terminal was pulled out), so 1A becomes 3.

4

Just for the archives in case someone faces the same issue. I received the switches from China. Installed them as described above and it all works. the switches I bought have no identification for the terminals. So after some search I found that the brass terminal is for ground/light (going to black wire in the oil heater I have fixed), and the two metal terminals are the actual switch for the main current (so both blue wires in my case).