Live end of 4-wired for 3 phase/1 phase
4-wired track system, can be used to 1 phase or 3 phase.
N & L1, N & L2, N & L3
When you need, open it.
4-wired Live and Live end
4-wired Mounting kit
instruction of 4-wired system
W-440 adaptor can used in XXXsystme