Ampacity, Heater

Dennis Alwon

Staff member
Chapel Hill, NC
Retired Electrical Contractor
The switch for the heaters is a duplex. You can turn each element on or off separately. So that’s why the 5 wire application. In case you want them to be on separate circuit with separate double pole brakers. At least that’s how I understand the diagram.

Sent from my iPhone using Tapatalk

The diagram says stack switch but you are correct- 2 dp switches would work fine and no 4 pole breaker tie necessary