How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask AssuredElectrical Your Own Question
AssuredElectrical, Master Electrician
Category: Electrical
Satisfied Customers: 4241
Experience:  Contractor-42+ Years in the ElectricalTrade
Type Your Electrical Question Here...
AssuredElectrical is online now
A new question is answered every 9 seconds

I want to replace a light switch with a zwave zw4001 switch.

This answer was rated:

I want to replace a light switch with a zwave zw4001 switch. The existing switch is spst, I believe, with the neutral white wires spliced outside the switch and the hot black wires connected to terminals on the right side of the switch. The zwave requires that the neutral wire be connected as well. Can I just splice a wire into the existing neutral splice and connect it to the neutral terminal? Or is other rewiring necessary?

AssuredElectrical :

Welcome. My name is XXXXX XXXXX would be glad to assist.

AssuredElectrical :

It sounds like there are 2 cables in that switch box. The 2 whites tied together with a wire nut, and then one black to each screw on the switch.

AssuredElectrical :

If that is the case, yes, take a short white wire and connect to your Zwave, then connect the other end to the 2 whites in the box and that will satisfy your neutral connection.


Thanks. I thought that was right but good to know for sure.

AssuredElectrical and other Electrical Specialists are ready to help you

Related Electrical Questions