SPD Manual

Page 6 of 7 10-055-1 REV E Date: 08/27/2018
In a utility connected home, one of the most vulnerable points of
entry is the service entrance panel. All house wiring connects to the
service entrance panel and therefore everything plugged in is at risk.
The MidNite SPD300AC provides protection against near lightning
strikes up to 100,000 amps of surge current. Hooking up to the service
entrance can be done in a few different ways.
Figure 1.6 shows the two hot wires connected to a 240V circuit
breaker. The circuit breaker in this case has no other house loads and
is dedicated strictly to the SPD. This was done just to have a
convenient place to connect the hot leads of the SPD to the panel.
Fig 1.5
Fig 1.6