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Department of Safety and Professional Services
Department of Safety and Professional Services
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Well Wiring

Well Installers / Well Wiring Fact Sheet

Water Well Pump Valve. The Pump is Blue and the handle on the pump says Main Cold.

This document is wiring instructions for well drillers and installers.

It provides the information needed to follow Wis. Stat. Section 101.862 (4)(q), which reads:

"A person engaged in installing, repairing, or maintaining a pump for a well if the activity only involves installing or modifying a conductor going from the pump’s junction, pull, or device box to the nearest disconnecting point and the conductor is buried with the pump."

Exemption from Electrical Licensing for Persons Installing a Water Well Pump

What electrical wiring can a well installer perform?

  • Lay all the cables in the trench with the water piping from the well.

  • Attach the junction box to the well casing.

  • Install any electrical wiring or equipment at or within the well that is directly associated with the well pump.

  • Connect all conductors within the junction box.

  • Connect all conductors to the nearest disconnecting point after the pressure switch.

Two rectangles spread apart from each other horizontally. The left most rectangle is labeled Nearest Disconnecting Point and the right most rectangle is label Junction Box. There is a brown line indicating the Grade Level. The Junction Box has four wires feeding out of it colored wires are two gray wires with one red in the middle that connects to a circular object labeled Pump. The red wire is labeled as Below Ground Conductors from Pump to Junction Box. There is also a blue wire that feeds out of the Junction Box and connects to the Nearest Disconnecting Point rectangle. The blue wire is labeled as Conductors Below Ground.

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