DIAGRAM: Load Control Using a Relay

page 2 of 2ALL.DIG.Load_Control_Using_A_Relay.01.EN
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IMPORTANT: This is not intended to be a complete system diagram; fusing, discon-
nects, and grounding should comply with local electric codes.
Notes:
Used when the load is an inverter, pump, motor, compressor, or exceeds the controller’s Load current rating.•
The Flyback Diode is recommended to clamp inductive voltage spikes when the Relay is de-energized. The •
Diode should be rated to at least the maximum current drawn by the Relay coil.
•
The Charge Control above can be any Morningstar controller with built-in Load terminals and LVD (low •
voltage disconnect) functionality.
For detailed installation information, please consult the respective product manual.•
12 Volt
+
-
+ -
PV Array
-> LOAD
N/O Relay
Flyback Diode
Charge Controller
Array +
Array -
Battery +
Battery -
Load +
Load -