Economy 7... two SPDs?

[JosephandAmber]

Simple question. When installing a dual supply CU for a customer with economy 7 will you now be installing SPDs on both supplies? Yes, the heaters are resistive loads but they also contain electronics.

 

[littlespark]

Just the one SPD in the 24hr board if the boards are close together.

The SPD sits in parallel to the loads, so you could actually have the SPD in a separate third enclosure if you wanted to.