Four way lighting circuit and four terminal switch

[consciouspnm]

I've got a four way lighting circuit, three of the switches are standard Common + L1 + L2, the fourth has four terminals arranged in a square with a wire in each. Is this a special switch and can it be replaced with a standard one? If so, where do the wires go?

 

[securespark]

Yes and no.

 

[ricicle]

If you have a 4 way lighting arrangement then two of them should be intermediate switches.
You need one more of these for every no. of switches you go above and including 3 way. 2 way switches are used on the first and last switch.

 

[GaryMo]

A 4 way lighting circuit? Do all 4 switches control the same lighting point?
Anyway, the switch with 4 terminals sounds like an intermediate switch, this type of switch is used between 2 x 2way switches to control a particular lighting point with a third switch eg larger landing area's. More intermediate switches can be used for further control.
You won't have 3 x 2way switches and an intermediate controlling the same lighting point though.

 

[consciouspnm]

I've had another look and there are two intermediate switches and MEM do them in their stainless steel range so I'm ok thanks.

 

[bernardgreen]

Don't forget that metal switches MUST be earthed by the earth terminal on the switch.