What is T1 and T2 Electrical?

The L1 and L2 are probably the power connections; Line 1 and Line 2. T1 and T2 are probably the thermostat switch terminals. For heat, T1 and T2 contacts would “close” when the temperature is falling and it reaches the set point.

What does T1 stand for on a contactor?

A contactor is an electrically-controlled switch used for switching an electrical power circuit. A contactor is typically controlled by a circuit which has a much lower power level than the switched circuit, such as a 24-volt coil electromagnet controlling a 230-volt motor switch. T1= TRANSFORMER 1. T2= TRANSFORMER 2.

What is the difference between L1 and T1?

T1 and T2 are probably the thermostat switch terminals. The faceplate of a single, one-way switch has two terminals: “L1” is the terminal to which the neutral core wire is attached – the blue wire (traditionally black, before the change).

What does L1 and T1 mean on a thermostat?

L1 means line 1, L2 means line 2, T1 means Thermostat 1, and T2 means thermostat 2.

What is L1 and T1 on a contactor?

The contactor terminals for connection of the incoming power are almost always marked L1, L2, and so on. The contactor terminals for connection of the motor leads are almost always marked T1, T2, and so on.

Is black wire L1 or L2?

This is the most common type of switch, and is used where a light is controlled from a single switch. The Yellow wire goes in the common terminal, Red in the L1 terminal and Blue goes in the L2 terminal. The Grey wire goes in the common terminal, Brown in the L1 terminal and Black goes in the L2 terminal.

Does it matter which wire goes to L1 or L2?

Does l1 and l2 matter? When the switch is on, both terminals are connected together. Typically, these terminals will be marked COM and L1, or sometimes L1 and L2. Either way, it does not matter which wire is connected where.

Is L1 live and L2 neutral?

Function	label	Color, common
Neutral	N	white
Line, single phase	L	black or red (2nd hot)
Line, 3-phase	L1	black
Line, 3-phase	L2	red

What is L1 and L2 in a wiring diagram?

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 Colour wire goes to L2?

US AC power circuit wiring color codes

Function	label	Color, common
Neutral	N	white
Line, single phase	L	black or red (2nd hot)
Line, 3-phase	L1	black
Line, 3-phase	L2	red

What does T1 mean on a switch?

T1 = Tap 1. T2 = Tap 2. T3 = Tap 3 (of a Transformer secondary winding on the output reduced Voltage side)

What is L1 in wiring?

The faceplate of a single, one-way switch has two terminals: “L1” is the terminal to which the neutral core wire is attached – the blue wire (traditionally black, before the change). “COM” or “Common” is the terminal to which the live core wire is attached – this is the brown wire (formerly red).

Is L1 hot or neutral?

Is l1 white or black?

Function	label	Color, common
Neutral	N	white
Line, single phase	L	black or red (2nd hot)
Line, 3-phase	L1	black
Line, 3-phase	L2	red

What Colour is L1 wire?

The Yellow wire goes in the common terminal, Red in the L1 terminal and Blue goes in the L2 terminal. The Grey wire goes in the common terminal, Brown in the L1 terminal and Black goes in the L2 terminal. When ever you fasten a wire into a terminal, always give it a gentle pull to ensure it is fastened correctly.

What color is the L1 wire?

AC Power Circuit Wiring Color Code Standards

Function	Label	Common Color
Neutral	N	white
Line, single phase	L	black or red (2nd hot)
Line, 3-phase	L1	red
Line, 3-phase	L2	black

Which color wire is positive?

red

Is blue wire neutral?

Wiring Colour Codes The blue wire, also referred to as the neutral wire, has the function of transferring electricity away from the appliance. The brown wire, otherwise known as the live wire, transfers electricity to the appliance.

Does blue wire go to black or white?

Black wire is for the fan. Blue wire is for the light, if light is included with the fan. White wire is neutral.