Running Shurflo continuous?

[RileySugarbush]

I have used several Shurflo 4008 12 volt pumps and my controller displays the pump current draw. I rarely see anything over 2 amps on the sap lines, under any pumping conditions. Often it is between 1.0 and 1.25 amps. The rating stamped on the pump is 7.5 amps but I haven't seen it come anywhere close to that.

Dave

That's good to know. Thanks for the info!

[mol1jb]

So when looking at 12v dc power adapters do I need to look for those with amperage over 7.5 or under 7.5?

[RileySugarbush]

The freshwater systems one looks good. Based on info from Biz, anything with at least 4A at 12V should do it.

[mol1jb]

How does the the power wires from Shurflo look? Are they just bare ends?

[RileySugarbush]

The wires on the 110VAC version were just stripped pigtails, no connector

[motowbrowne]

How does the the power wires from Shurflo look? Are they just bare ends?

Yep, just bare ends on the 2088.

[mol1jb]

Good to know. If that is the case then I may be looking at an adapter like this one that can accept bare wires easily.

https://www.radioshack.com/products/...a-power-supply

It is probably a bit overkill on the supply side but if it works it would be an easy way to get the 12v shurflo to 110.

[gmc8757]

Good to know. If that is the case then I may be looking at an adapter like this one that can accept bare wires easily.

https://www.radioshack.com/products/...a-power-supply

It is probably a bit overkill on the supply side but if it works it would be an easy way to get the 12v shurflo to 110.

I've been using an old computer power supply to power my 12v pumps. Cut and connect the green wire to one of the black wires. This will allow the power supply to stay powered on once the power supply is plugged into 110. Use yellow and black wires to supply the 12 volts to the pump. Works well, 12v w more than enough amps.


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[Dale Sparrow]

LED 12v power supplies on ebay are half the money. I use a the 30 amp model.

[Dale Sparrow]

So when looking at 12v dc power adapters do I need to look for those with amperage over 7.5 or under 7.5?

You should have a power supply with 3x motor's rated amps. 25 amps should be plenty for a 7.5 amp motor. When a motor begins to spin it draws many times it's rated amps just for a split second if you don't have a large enough power supply it may just keep popping the breaker.