Description Of 4 Inch DC Brushless Solar Submersible Borehole Pump (4EPC)

EDWIN model 4EPC is a Stainless steel 4 inch DC Brushless Solar Submersible Borehole Pump, it has permanent magnet DC brushless synchronous motor, and the efficiency is improved by 15%-20%; EDWIN uses brass or stainless steel for the outlet, connector, and oil cylinder part. The bearing is made from NSK brand, to make sure long working life. 2 years warranty is provided.

About DC Controller

Normal DC controller, used for DC only

Available for: 2EPC;3EPC;4EPC;4ELR;3ESS;3ESC;4/6ESC

Size: 23.8x18x9.5cm

Weight: 1.5kgs

Technical Data

Model	Voltage	Optimum input voltage (DC)	Power	Max. Flow	Max. Head	Outlet	Solar Panel
							Open circuit voltage (VOC)	Power
4EPC6-42-48-600	48V	60V-90V	600W	6.0m3/h	42m	1.25"	<105V	≧1.3*Pump Power
4EPC6-42-72-600	72V	90V-120V	600W	6.0m3/h	42m	1.25"	<160V	≧1.3*Pump Power
4EPC6-56-48-750	48V	60V-90V	750W	6.0m3/h	56m	1.25"	<105V	≧1.3*Pump Power
4EPC6-56-72-750	72V	90V-120V	750W	6.0m3/h	56m	1.25"	<160V	≧1.3*Pump Power
4EPC6-84-72-1100	72V	90V-120V	1100W	6.0m3/h	84m	1.25"	<160V	≧1.3*Pump Power
4EPC6-84-110-1100	110V	110V-150V	1100W	6.0m3/h	84 m	1.25"	<210V	≧1.3*Pump Power
4EPC6-112-110-1300	110V	110V-150V	1300W	6.0m3/h	112m	1.25"	<210V	≧1.3*Pump Power
4EPC6-135-110-1500	110V	110V-150V	1500W	6.0m3/h	135m	1.25"	<210V	≧1.3*Pump Power
4EPC9-45-110-750	110V	110V-150V	750W	9.0m3/h	45m	2"	<210V	≧1.3*Pump Power
4EPC9-58-110-1100	110V	110V-150V	1100W	9.0m3/h	58m	2"	<210V	≧1.3*Pump Power
4EPC9-71-110-1300	110V	110V-150V	1300W	9.0m3/h	71m	2"	<210V	≧1.3*Pump Power
4EPC9-85-110-1500	110V	110V-150V	1500W	9.0m3/h	85m	2H	<210V	≧1.3*Pump Power
4EPC13-36-110-750	110V	110V-150V	750W	13.0m3/h	36m	2"	<210V	≧1.3*Pump Power
4EPC13-49-110-1100	110V	110V-150V	1100W	13.0m3/h	49m	2"	<210V	≧1.3*Pump Power
4EPC13-54-110-1300	110V	110V-150V	1300W	13.0m3/h	54m	2"	<210V	≧1.3*Pump Power
4EPC13-60-110-1500	110V	110V-150V	1500W	13.0m3/h	60m	2"	<210V	≧1.3*Pump Power
4EPC17-48-110-1500	110V	110V-150V	1500W	17.0m3/h	48m	2H	<210V	≧1.3*Pump Power

Free Spare Parts

Hydraulic Performance Curves

Installation Description

How to choose the Solar Panel?

To choose a suitable Solar Panel, we only have to notice 2 things:

1) The panel power should be at least 1.3 times the pump power.

2) The VOC of the Solar Panel should be less than pump's VOC.

For example:

We got the pump which is 500W, and VOC is 105V

Then we got the solar panel with its power: 330W, VOC 45.89V

So we only have to connect 2x330W solar panel in series, then it's OK!

Analysis:

we have the solar panel power totally 660W (bigger than 500W*1.3=650W),

the VOC of the solar panel system is 45.89*2=91.78V (less than 105V)

If users want to use bigger power for the solar panel, it's also ok, but do make sure, the total VOC will be no more then the pump VOC, sometimes users can also choose the series+parallel ways for connect the pump panel.

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