# What is P1 and P2 wires on a motor?

## What is P1 and P2 wires on a motor?

Thermal Protection These are Normally Closed (NC) “Klixons” that open when a predetermined temperature is reached breaking continuity. Thermal protection leads are labeled P1 and P2 and are to be connected in series with the motor magnetic starter holding coil or magnetic starter assembly.

What does L1 and L2 mean in electrical terms?

The incoming circuit wires that provide the power are referred to as the line wires. L1 (line 1) is a red wire and L2 (line 2) is a black wire. Together, they show the motor voltage. Having both an L1 and L2 indicate that the motor voltage may be 240 volts.

### How do you wire a 1 phase 230V motor?

How to Wire a Single-Phase 230V Motor

1. Read the nameplate on the motor and confirm that it is a dual-voltage motor.
2. Open the wiring box cover by removing the screws and verify there are four wires inside the box for wiring the motor.
3. Connect the ground wire from the switch to the ground terminal in the wiring box.

How do you ground an electric motor?

Ground the engine block to the frame with a heavy ground wire or cable, making sure that both connections are clean, tight, and metal to metal. Next, ground the engine block to the vehicle body with a heavy ground wire or cable making sure that both connections are clean, tight and metal to metal.

## What is the voltage between L1 and L2?

The voltage between two lines (for example ‘L1’ and ‘L2’) is called the line to line (or phase to phase) voltage. The voltage across each winding (for example between ‘L1’ and ‘N’ is called the line to neutral (or phase voltage).

What does L1 L2 L3 mean in electrical?

The three winding end connected together at the centre are is called the neutral (denoted as ‘N’). The other ends are called the line end (denoted as ‘L1’, ‘L2’ and ‘L3’). The voltage between two lines (for example ‘L1’ and ‘L2’) is called the line to line (or phase to phase) voltage.

### Is 230V single phase?

In the US, 120V is the standard single phase voltage with one 120V power wire and one neutral wire. In some countries, 230V is the standard single phase voltage with one 230V power wire and one neutral wire.

How do you wire a 230 volt single phase outlet?

Connect the wiring to the outlet prongs and tighten each screw down on its wire to secure it in place. Connect the red and black (hot) wires to the two brass screws labeled hot. Connect the white (neutral) wire to the silver screw labeled neutral. Connect the bare (ground) wire to the green screw labeled ground.

## How do you test if a motor is down to earth?

To test your motor for short to ground, you’ll need to set the multimeter to ohms and disconnect the motor from its power source. Then inspect each wire and look for infinite readings. Alternatively, if you get a reading of 0, you might have a cable issue.

Why motor ground must be isolated from the other’s ground?

Description. The primary reason for the use of isolated grounds (IG) is to provide a noise-free ground return, separate from the equipment grounding (EG) return.

### What does L1 and L2 and L3 mean?

Terminology. The three winding end connected together at the centre are is called the neutral (denoted as ‘N’). The other ends are called the line end (denoted as ‘L1’, ‘L2’ and ‘L3’). The voltage between two lines (for example ‘L1’ and ‘L2’) is called the line to line (or phase to phase) voltage.

What is L1 and L2 on 240v?

The L symbol designation refers to the Line, or the incoming circuit wires that provide the power for the motor. For example: L1 and L2 indicate that the motor voltage may be 240 volts.

## What are the P1 and P2 leads on the motor for?

The motor has P1 and P2 leads that relate to overheat protection. Does anyone know if/how it is possible to connect these directly to the VFD to provide this overheat protection?

Should I connect the P1 and P2 leads?

If there are P1 and P2 leads, than connect them as shown. If there are no leads marked P1 and P2, use the other diagram. It’s the LAW!

### What wires are p1 and P2 connected to?

The one on the right shows wires labeled “P1” and “P2” connected to W1 and V2. At the end of P2, there is a triangle that appears to be making contact with a line at the end of P1.

What is the difference between P1 and P2?

The old pump label says P1 is 0.45 kw, and P2 is 0.25 kw. I understand that P1 is the wattage the pump uses (that I pay for) and P2 is the power delivered at the output shaft (please excuse my mixing of watts, power, etc).