In the case of 3-wire pumps, it will be red to red, yellow to yellow, and black to black.

What are the 3 wires on a well pump?

In a 3-wire well pump configuration, the motor is connected by a black, red, yellow, and green (ground) wire. Three-wire pumps utilize a separate control box outside the pump that houses the important starting components, which is usually mounted on a nearby wall above the ground.

How do you wire a 3 wire submersible well pump?

Quote from the video:
Quote from Youtube video: So let's jump right in. So getting right into things the three types of motors that you're most likely to encounter when you're dealing with submersible. Well pump motors is going to be PSC.

What is the color of the 3 hot wires in three phase power?

The three hot wires in a three-phase circuit are colored black, blue and red; a white wire is the neutral and a green wire is used for the ground.

How do you wire a 3 wire well switch?

Quote from the video:
Quote from Youtube video: Situation however the pressure switch in a three wire system is going to be located. Before your control panel and in a two wire system it's going to be located somewhere near the pressure tank.

How are well pumps wired?

Quote from the video:
Quote from Youtube video: The main difference is on to wire pumps all the starting components for that pump is built into the pump which is down in the well.

Are well pumps 3 phase?

Three-phase submersible deep-well pump AC motors don’t require starting capacitors, run capacitors, or centrifugal starting switches that can wear out and fail. They operate with a higher torque and greater efficiency than single-phase submersible deep-well pump motors of the same HP, rpm, and frame size.

Does a well pump need a neutral?

Neutral (white) isn’t used in this kind of circuit. Ground (green or bare) is necessary for safety. It sounds like the cable that was used to wire the pump had a white wire instead of a green (or bare) one.

Can you wire a well pump backwards?

A common myth is that in reverse rotation, the pump causes backward flow, that is, IN the discharge and OUT the suction. In reality, a pump operating in reverse rotation because of wiring or phase change will pump in the normal direction. Now, it won’t pump very well. Its flow will be reduced, as will its head.

What is the difference between a 2 wire and a 3 wire well pump?

The main difference between 2 wire and 3 wire well pumps is characterized by where the starting components for the motor are located. Three wire well pumps house the starting components (starting capacitors, running capacitors, relays, and thermal overloads) in a control box or panel.

How do you test a 3 wire submersible well pump?

Quote from the video:
Quote from Youtube video: We can see the ohm resistance. Range for our motor according to the chart we can see that the line-to-line resistance between the black and yellow which of the run windings should be between 4.0.

Where do the wires go on a pressure switch?

A wiring diagram is normally found on the inside of the cover. Loosen (do not remove) the screws on the pressure switch terminal with a screwdriver by turning in a counterclockwise direction. Feed wires from the pump motor and main power supply through the openings on either side of the switch.

What is the white wire in electrical?


The white wire is the “neutral” wire, it takes any unused electricity and current and sends it back to the breaker panel.

What wire do I need to run to my well pump?

Find the correct wire size for your pump.

Cross reference the distance from your pump to the electrical service entrance to determine the correct gauge.
Motor Rating Copper Wire Size
1.5 HP 3 Wire 359 ft.
1.5 HP 2 Wire 211 ft.
2 HP 3 Wire 180 ft.

Does well pump need to be grounded?

It is recommended that all well pump motors have the ground wire connected to the same service ground as any other motor would be. Grounding is a safety issue and offers protection from electric shock or electrocution due to leaking current.

How do you hook up a water well pump?

Quote from the video:
Quote from Youtube video: Most common way we get that done is by setting the pump above the production zone. So that all the water coming out of the aquifer is coming from below.

Why does my well pump have two inlets?

A two line jet pump draws water out of the well by magic: it forces water away from the pump and into the bottom of the well through one of the pipes (usually the smaller diameter pipe).

How do you wire a 4 wire well pump?

Quote from the video:
Quote from Youtube video: Control box by quick disconnect when you take it off it's got all your components. Your start components in the lid. Now we're going to wire.

Why does my well pump need a control box?

The pump control box turns the well pump motor and the Electrical Outlet on or off when the water level control box signals it. The Chlorine Feed Pump runs when the electrical outlet has power, adding chlorine solution to the source water entering the reservoir.

Can I bypass a well pump control box?

You can bypass a well pump control box by purchasing and installing a type of well pump that does not require one, such as an above-ground or two-wire submersible well pump. However, if you decide on a three-wire submersible well pump, it is a necessary component of the system’s design.

How do you test a well pump control box?

Quote from the video:
Quote from Youtube video: And the pressure switch would close thus allowing the the electricity to travel up to this panel here so I put my meter on l1 and l2. And we can see over there that the voltage is reading about 247.