The mechanics of this switch are simple in that they either switch the travellers straight through or criss cross them. Each opening from which you can enter or leave a room should have a switch that controls the lighting within that room.
235df1 A Four Way Switch Wiring Diagram Wiring Library
4 way switch in and out. For example if you have a living room that has three openings you need a four way switch in order to control the lighting in the room. The 4 way terminals are labeled in and out two of each. Actual toggle position can vary with make and model. The wire connections do not have to be removed. In the first 3 way switch box connect the pair of wires leading to the 4 way box to the out pair of screws on the switch. Test a 4 way switchturn off power to the switches at the circuit breaker and using a tester make sure power is off.
A 4 way switch must be wired between two 3 way switches as shown in the diagrams on this page. Connect the remaining wire to the in screw. A 4 way switch has 4 terminals or poles. A 4 way switch has four terminals do not confuse with and purchase a 2 pole switch by mistake. When the switch is operated current will either travel straight through or crisscross. A 4 way switch has five terminals.
4 way switch not to be confused with a 2 pole switch. The circuit should now work. Remove all of the switches so you can access the switch terminals. Repeat for the other 3 way switch box. Two terminalpoles are labeled in and two are labeled out pairs of wires called travelers will connect to each side. Using a continuity tester check continuity between terminals as shown.
Four way switches can come in handy in large rooms that have many door openings or exits. Each pair of traveler terminals should be wired to the traveler wires from one of the 3 way switches in the circuit. One ground and 4 circuit terminals divided into two matching pairs called travelers.
Gallery of 4 Way Switch In And Out
