4ELR-A/D 4" AC/DC Brushless Solar Pump With Plastic Impeller

Main Features：

1、Oil-filled AC/DC motor: This solar pump is capable of delivering water from deep wells and boreholes with ease.

2、You can make your decision that you will choose copper or stainless steel outlet/connector/ oil cylinder

3、Japanese NSK bearing: It remains in excellent condition for years to come.

4、Alloy mechanical seal: The motor doesn’t allow water or other rubbish come in for the sake of alloy mechanical seal

5、Installation easily: It is easy to install and requires minimal maintenance, making it a hassle-free solution for your water supply needs.

6、Technical innovation: adopt double plastic package for rotor and stator, motor insulation ≥300MΩ, the motor security is much improved.

8、AC/DC Controller or HV Controller:

  1) Waterproof class: IP65

  2) Ambient temperature: -15℃ to 60℃

  3) MPPT function, the maximum workload can be recorded and the pump can adjust optimal working condition

  4) Automatic charging function: Guarantee the pump normally working regardless of sunrise or sunset.

  5) You can comprehend the power, voltage, current, speed etc working condition and error code by LED display

  6) Frequency conversion function: It can automatically run with flexible conversion and user also can change the speed of pump artificial

  7) Automatically start and stop working.

  8) Water proof and leak-proof: Double seal effect.

  9) Soft start: Its intuitive controls and clear display make it easy to monitor and adjust pressure settings as needed.

  10) High voltage/Low voltage/Over-current/High temperature have respective protected mode.

9、 2 years warranty.

Spare parts：


Installation Tutorial：

Hydraulic Performance Curves：