Useful tips

What does L1 and L2 mean in wiring?

What does L1 and L2 mean in wiring?

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.

What color wires go to L1 L2 L3?

The USA has their own wiring colors for electrical circuits, black, red, and blue are used for 208 VAC three-phase; brown, orange and yellow are used for 480 VAC….International Wiring Color Codes.

Region USA (LV)*
Neutral (N) White
Line 1 (L1) Black
Line 2 (L2) Red
Line 3 (L3) Blue

What happens if you connect L1 to L2?

If using a two way switch for one-way switching, and the switch appears to operate upside down, then move the wire from L1 into L2. For two way switches, swapping L1 and L2 will change the position of the switch when on. Normally, two way switches should be wired so that the light is off when both switches are off.

What voltages are available in a single-phase 3-wire system?

Single phase 3-wire systems (some call them two phase or Edison) have 2 hot wires and a neutral wire. This is the most common residential system in the USA. If you measure from hot wire to hot wire you will get 240 volts and if you measure from either hot wire to neutral you will get 120 volts.

What are the L1 and L2 on a wiring diagram?

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’s the difference between the L1 and L2 lines?

In other words, is there a way to distinguish between the L1 line and the L2 line or are they just designated like that because there are 2 lines. The difference between L1 and L2 is 240 Volts. Sorry, but that’s exactly what it means.

What do you call the voltage between two lines?

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

What does L1 and L2 mean on a motor?

L1 and L2 Motor Wiring 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.