I have a submersible pump system with a Square D pump pressure control box. It is a 1/2 hp 3 wire pump with a control (well relay) box between the pressure switch on the pressure tank and the well motor itself (submersible, 135' down).
I am installing this system myself and don't know how to wire the pump relay box. In the box there are 5 terminals: Line 1 and Line 2 , then the 3 wires yellow, red and black, which go to the well. My issue is with the Line 1 and 2 recepticles. I don't understand which wire goes where - Is L1 black or L2 black? Does it not matter? (no telltale silver/bronze colored screws as with a light switch)

The 3 wires coming from the well motor are wired to the same colored wires within the relay box, I am assuming.

Thanks!

L1 and L2 are standard reference designations for either hot of a 240 V system and will be typically Black or Red and there is 240 V between them. While it makes a lot of sense to keep the designations and colors within a piece of equipment. Functionally it doesn't matter in this case, but wire RED to L2.

In your fuse box there is a mix of black wires. Some going to L1 and some going to L2.

If you happen to use a white/black/bare to wire the system from the fuse box, then the white should be taped the color red at both ends.

My system is solar with 115v only. In the breaker panel only white and ground are interchangeable. From here the wire goes to the pressure switch, and then from the switch to the controller. (Franklin capacitor) From what I am getting though L1 and L2 are interchangeable none-the-less.

I think the neutral usually connects to L2. I am confused. What works the coil of the relay? Perhaps you need to post back more details such as the brand and model of the relay and pump. Is the pressure switch the standard Square D 2 pole switch commonly used with 240 volt pumps? Does your panel only have one hot leg?

What is the make and model number of the controller?

This is a Franklin Controller/relay. I don't have the model number but it is sized for 1/2 hp pump and 115 volt houshold current. It has three ports for the 3 wires coming from the pump, then the two Line ports labeled 1 and 2. It seems like most people are familiar with a 240v system, but this being a small solar electric system I sized it to run on 115v AC.

Did find this:
Pumptec, Overvoltage Protection, Pump Tech, Pumptech, Well Protection

Here is from the Franklin website. Is one of these your controller?

Franklin Electric - Control Boxes

Yes, this is the interior wiring diagram

http://www.franklin-electric.com/Man...2_qd_relay.pdf

Thanks all for your interest and help!

I take that back, there is no "run capacitor" separate from the start capacitor. But it is essentially the same diagram.

OK according to the diagram, L1 gets the black 120 volt feed, L2 gets the white neutral from the 120 volt feed, and the black,yellow, and red from the pump are all labeled.