Charge Controller Features:
Some of the key features of this controller are:
The microprocessor is the heart of the controller. The battery level is constantly checked by the microprocessor and compared to the active mode's (Float, Bulk or Equalize) setpoint to determine how much (if any) current should flow into the batteries. As the battery's level of charge increases, so does the voltage of the battery (the battery's level of charge can be determined by the voltage of the battery.) As the charge level increases the controller may use very short pulses of energy to "top off" or maintain the charge at the optimum level. These pulses of energy will be of varying lengths as required. This charging algorithm is referred to as pulse width modulation (or PWM), and when properly controlled, offers a very suitable method of charging deep cycle batteries to ensure good battery health and longevity.
Settings are of course user changeable! This unit incorporates a menu-driven interface that allows super easy setpoint changes and calibration tweaking.
Four very powerful 400 amp IGBTs are wired in parallel to ensure plenty of reserve capacity above the rated 155 amps of this controller.
The controller can handle surges in excess of 155 amps; however, sustained high amperage currents will cause the internally mounted breakers to trip and/or the unit to heat up rapidly causing a cool down period. It is recommended that you use the controller to control currents that will not exceed the 155 amps of solar energy under the best of charging conditions.
The enclosure is heavy gauge, solid steel, ready to mount. -- No plastic, no junk, simple and rugged.
This Hoffman pull box is perfect for terminating larger wire. It has multiple knockouts on each side of the box. The box measures 10.25" x 12.5" x 6.25". The electronics are fully isolated from the box.