3ESS 3" DC NSK Bearing Brushless Solar Screw Submersible Water Pump
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en
3" Compact Size
DC Brushless
Stainless Steel for Outlet/Connection/Oil Cylinder
NSK Bearing
MPPT Function
●New type screw: High-lift and mass flow.
●Permanent magnet DC brushless synchronous motor:
1)The efficiency arrives at 115%-120%
2)Green solar energy and no electric charge
●The whole 304 stainless steel rotor shaft and pump shaft avoid the risk of shaft breakage
●Good wear resistance: stainless steel connector/ oil cylinder
●Japanese NSK bearing: extend the working life
●Silicon carbide-impregnated graphite mechanical seal: It protects the motor because the seal is able to keep out water and other impurity
●Winding technology: Motor coil is made by 180°C high temperature resistant copper wire, insulation class F
●Cold rolled 600 silicon steel sheet stator and rotor
●The magnet is made of 40SH NdFeb, with a temperature resistance of 150°C
●DC Controller:
1) Waterproof grade: IP65
2) Environment temperature: -15℃ to 60℃
3) MPPT function, the solar power utilization rate is higher
4) Runing stably:The pump normally works at the same as charges the battery ,which there is little sunshine,the pump can also run stably
5) Direct view display: LED displays the power, voltage, current, speed etc working condition and error code
6) Frequency conversion function: It can automatically run with frequency conversion according to the solar power, and user also can change the speed of pump manually
7) Easy installation: With widely used DC plug,the pump is easy to install
8) Water proof and leak-proof: Double seal security
9) Soft start: No impulse current, protect the pump motor
10) Multi-party protection: High voltage/Low voltage/Over-current/High temperature protection
●2 years warranty: We have professional after-sales service and ultra long term

Installation Tutorial:
Installation of DC PUMP:

| ITEM | Voltage | Optimum input voltage(DC) | Power | Max. Flow | Max.Head | Outlet | Cable | Solar panel | |
| Open circuit voltage(VOC) | Power | ||||||||
| 3ESS0.5-28-12-80 | 12V | 30V-48V | 80W | 0.5m³/h | 28m | 0.75" | 2m | <60V | ≥1.3*PUMP POWER |
| 3ESS1.2-56-24-120 | 24V | 30V-48V | 120W | 1.2m³/h | 56m | 0.75" | 2m | <60V | ≥1.3*PUMP POWER |
| 3ESS1.2-77-36-210 | 36V | 30V-48V | 210W | 1.2m³/h | 77m | 0.75" | 2m | <60V | ≥1.3*PUMP POWER |
| 3ESS1.7-109-48-500 | 48V | 60V-90V | 500W | 1.7m³/h | 109m | 0.75" | 2m | <110V | ≥1.3*PUMP POWER |
| 3ESS2.0-150-48-750 | 48V | 60V-90V | 750W | 2.0m³/h | 150m | 0.75" | 2m | <110V | ≥1.3*PUMP POWER |
| 3ESS2.0-150-72-750 | 72V | 90V-120V | 750W | 2.0m³/h | 150m | 0.75" | 2m | <170V | ≥1.3*PUMP POWER |
| 3ESS2.2-180-72-1100 | 72V | 90V-120V | 1100W | 2.2m³/h | 180m | 0.75" | 2m | <170V | ≥1.3*PUMP POWER |
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