1.Description:
   It is a DC-DC 400W High Power Supply Step Down Module CVCC 10.5V-60V to 0-45V Buck Voltage Converter.

2.Feature:
  1>.10-60V wide input voltage, suitable for most power supplies on the market as input source;
  2>.Output constant voltage and current, voltage and current continuously adjustable. It can meet most electric equipment;
  3>.High output power, good ventilation and natural heat dissipation can reach 280W/12A (pay attention to the limitation of output power and output current);
  4>.The module adopts step rectification scheme, with high efficiency. The output voltage is more than 10V, and the efficiency is more than 92%-96%;
  5>.There is a constant current indication when charging the battery. The charging state is clear at a glance;
  6>.The input has a 15A fuse, and the input positive and negative poles are connected reversely, which will not damage the power supply (the fuse will burn, and the fuse needs to be replaced).

3.Parameter:
  1>.Model: SZ-BK0612
  2>.Model name: 400W step-down constant voltage constant current
  3>.Module nature: non isolated buck module(Buck)
  4>.Input voltage: 10.5-60V
  5>.Output voltage range: 0-45V (must meet the step-down conditions, in input multiplied by 0.8)

  6>.Minimum output voltage: 0V (+1V)
  7>.Maximum output voltage: about equal input*0.8
  8>.Output constant current: 0.2-15A (continuously adjustable, heat dissipation shall be strengthened if it exceeds 12A)
  9>.Maximum output power: 400W (it is necessary to add a fan to forcibly heat the heat sink and magnetic ring)
  10>.Continuous maximum working power: 280W (in ventilated environment)

  11>.Continuous maximum working current: 12A (in ventilated environment)
  12>.Input undervoltage protection: Yes, (the input is lower than 10.5V, the output is closed, and there is an error of about 0.5V)
  13>.Input overvoltage protection: none (overpressure prohibited)
  14>.Working temperature: -10℃ ~ 85℃ (heat dissipation shall be strengthened when it exceeds 65℃)
  15>.Operating frequency: 100kHz

  16>.Conversion efficiency: up to 97% (efficiency is related to input and output voltage, current and voltage difference)
  17>.Short circuit protection: Yes (constant current protection)
  18>.Input reverse connection protection: Yes (in case of short circuit, input reverse connection shall be cautious, which will burn the input fuse)
  19>.Output anti backflow: none (when charging the battery, the output is connected to inductive load, for example, the anti backflow diode must be added to the motor)
  20>.Work indicator light: Yes (blue LED light)

  21>.Constant current indicator: Yes (the CC indicator red light on the small board is on when the constant current is working, there is no current output, and this light is not on when the constant voltage is working)
  22>.Wiring mode: self equipped welding free 25A wiring terminal
  23>.Size: 60*60*45mm
  24>.Packaging method: independent carton packaging
 
4.Attention:
  1>.It is strictly forbidden to connect the positive and negative poles of input and output reversely (the reverse connection of input will burn the fuse, and the reverse connection of output will damage the control panel, which cannot be repaired and can only be replaced);
  2>.The control panel has a little rain proof glue. If it is damaged, it can only be replaced. Mind shooting carefully;
  3>.When the battery is charged and the output is connected with inductive load, the output shall be equipped with anti backflow diode.

5.Package:
  1PCS 400W step-down constant voltage constant current model.