BZ Products 25 Amp 12/24/48 Volts MPPT Charge Controller

High Voltage
Manufacturer Part Number: MPPT250HV

The model MPPT 250HV is A 25 amp high performance current boosting solar control. The “HV” designation indicates that this model is optimized for a higher voltage solar array. Otherwise the specifications are identical to the MPPT250.

Features

• Maximum power point tracking technology provides up to 30% more power from the solar array
• Built-in digital display shows battery voltage and charge current
• Temperature compensation
• Lightning protection
• Maximum solar open circuit voltage is 100 volts
• Charge a 12 volt battery from a higher voltage solar array – as high as 48 volts nominal!
• Voltage setpoint is adjustable to accommodate different battery types
• Charge a low voltage battery from a high voltage solar array, reducing wire losses
• Internal schottky diode prevents night time battery discharge
• Surface mount
• Includes five year manufacturer's warranty
• Made in USA

Specifications

Detailed Description

Through the use of advanced microprocessor control and a high efficiency power converter, power wasted in older PWM style solar controls is converted into higher charge current. The MPPT 250HV allows for input voltage conversion. This increases the Maximum Power Point voltage and allows for higher boost current over wider operating conditions. You can charge a 12 volt battery from up to a 48 volt solar input. A high accuracy digital volt and amp meter displays battery voltage and charge current. An auxiliary 100 ma 13.8 volt trickle charger is provided to keep the engine/generator start battery fully charged. A 15 amp capacity low voltage disconnect protects the battery from over discharge conditions. Proper battery charging is maintained over a wide temperature range with the battery temperature sensor. Battery float voltage is accurately regulated. Night time battery discharge is eliminated through the use of a high efficiency Schottky diode. Maximum input power to the MPPT 250HV is 250 watts.

When power is available from the solar panel, the MPPT 250HV microprocessor measures and determines the optimum operating point of the solar panel to produce the highest charge current possible to the battery. There is no interaction between the MPPT 250HV and other battery charging systems. The float voltage of the MPPT 250HV is factory set to 14.1 volts. The float voltage is adjustable. When the battery voltage reaches the float voltage the red Float LED turns on. At this point, charge current to the battery will gradually diminish to maintain the float voltage.

As soon a load is turned on, maximum charge current is applied to the battery. Temperature compensation adjusts the float voltage to properly charge the battery over a wide temperature range. When the battery is warm the float voltage will drop and when the battery is cold the float voltage will rise.

A low voltage disconnect is included to protect the battery from excessive discharge by automatically turning off a load, such as lights that may have been left on. Load is disconnected when the battery voltage is 12.0 volts or lower. When the batteries are recharged to 12.6 volts the low voltage disconnect reconnects the load. The yellow LED on the face of the MPPT 250HV is lit when the load is connected. Operation of the low voltage disconnect is fully automatic. Maximum low voltage disconnect load current is 15 amps. Do not connect the low voltage disconnect to inverters.