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MPPT Solar Charge Controller 50A

MPPT Series Brief

This MPPT (maximum Power Point Tracking) solar charge controller is a smart solar controller with automatic recognition function, smart charging, three stages charging function to protect battery. It can increase more 30%~60% efficiency than traditional PWM controller. It supports many kinds of batteries. It also have RS232 communication function.
Remarks:DC12V/24V/48V battery system automatic recognised.

Battery Charging Stages

Controller has a three-stage charging separately: fast charging, maintenance charging and floating charging. Through the fast, efficient and safe battery charging mode, the system can effectively extend the battery life.

A) Fast charging
Fast charging battery voltage has not reached full voltage value (i.e.balance/boosting voltage), controller MPPT charging will provide maximum solar power to charge battery. When the battery voltage reaches a preset value, there will be a maintenance charging.

B) Maintenance charging
When the battery voltage value is reached, the controller will conduct on constant voltage charging, this process will no longer be MPPT charging and the charging current also gradually declining as time goes by. Maintenance charge default duration is 0.5h, when the time reaches the set value, the system will be transferred to the floating charging..

C) Floating charge
After constant charging phase, the controller through reducing the charging current in order to reduce the battery voltage, and keeping the battery voltage in floating charge voltage set point. During float charging stage, battery charging is very weak, ensure the batteries are full charged. In the float charging stage, loads can get nearly all of the solar power. If the loads exceed solar power, the controller will not be  able to maintain float charging stage. When the battery voltage is low and then recover back to charging set value, the system will exit float charging stage, re-entering the fast charging stage.

Main Fratures:

_ MPPT charging mode, peak efficiency up to 99%,saving 30%~60% solar panel than traditional PWM controller.

_ DC12V/24V/48V battery system automatic recognition,users can use it in different system conveniently.

_ Maximum PV input voltage up to DC100V.

_ Three stages charge: fast charge(MPPT),constant voltage charge,floating charge, It can protect batteries well.

_ Three option of discharge: on mode and off mode and PV voltage(solar) control mode.

_ Users can choose 4 kinds of commonly standard batteries(Sealed lead acid, Vented, Gel, NiCd). Other kinds of batteries can be defined by users.

_ Digital tube can display battery voltage and charging current. The software can display various parameters such as model number, PV input voltage, battery type, battery voltage, charging current, charging power, working condition.

_ RS232 communication, we can offer communication protocol also, it’s convenient for user’s integration management.

_ This controller can be paralleled infinitely.

_ CE and RoHS Certifications are approved. We can help clients to approve other certifications.

Model

BK-MPPT-48V 50A

BK-MPPT-48V 100A

BK-MPPT-192V 50A

BK-MPPT-192V 100A

BK-MPPT-384V 50A

BK-MPPT-384V 100A

Rated system voltage

48VDC

192VDC

384VDC
 

Rated charging current

50A

100A

50A

100A

50A

100A

Output capacity

2.8KW

5.6KW

11KW

22KW

22KW

44KW

PV open circuit voltage input range

75V~155V

300V~400V

580V~800V

max power point voltage range

60V~124V

60V~124V

240V~320V

240V~320V

464V~640V

464V~640V

Recommend PV open circuit Voltage

115V±10V

343V±10V

650V±10V

Efficiency

≥98%

Empty loss

≤5W

Temperature compensation algorithm

-2mV/℃/2V

Communication

RS485

ambient working temperature range

-25℃~+45℃

Storage temp. Range

-35℃~+80℃

Altitude

≤5500m(2000m above the need to reduce power use)

relative humidity

≤95%,no condensation

IP level

IP30

Measurement DxWxH

178*110*250

178*110*350

393*203*507

393*203*507

393*203*507

393*203*507

mounting hole size

158*230

158*330

370*330

370*330

370*330

370*330

Installation hole radius

M5

M5

M6

M6

M6

M6

N.G(kg)

3

5

20

23

21

24

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