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OverVoltage:
To help prevent over-voltages, always power up the controller (ensure it is running on the batteries) before enabling
your turbine and/or solar panels. All solar panels and turbines must have a manual disconnect that allow you to safely
power up the controller and then and only then, enable the energy sources.
Version 6.01 and later of the C440-HVA and all versions of the C440-HVAD no longer use a fuse to protect against
over-voltage; instead, these controllers use a specialized over-voltage sensing circuit that is MUCH faster at detecting
and protecting against over-voltage conditions. This circuit will be engaged should the voltage rise above ~104 volts.
If this occurs, the O.V. LED will illuminate indicating the O.V. condition. You must remove power from the
controller to reset the O.V. circuit.
General Information:
All electronic components and terminals are isolated from the back-plate and steel enclosure preventing ground loops
as well as providing a small degree of lighting protection. Please read about proper grounding to ensure your system
is safe and protected from high voltages.
This unit is designed for mounting in a dry indoor environment. The enclosure will not protect the contents from
moisture. Please do not mount outdoors where rain, snow or high moisture content is a possibility.
** The solenoid in this unit has been tested to over 440 amps. We have installed two 150-amp breakers as a standard configuration.
This allows for 9000 watts of wind power in a 48-volt system, 4500 watts in a 24-volt system and 2250 watts in a 12-volt system.
Solar systems should be designed for no more than 125 amps continuous current. **
Higher voltage, higher amperage systems will result in a lower life expectancy of the solenoid. We recommend our
solid state controllers for larger solar systems, as they are designed specifically for moderate to large solar systems
and can switch on and off large solar currents many times per second for many years without failure of the solid-state
switching devices.
Note: Some of the circuit boards displayed may be from earlier version of this controller.
Modified 3/27/2017.
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