Wiring Diagram Line And Load Disconnect

With the breaker turned off the wires can be disconnected and the cable removed from the e lectrical compartment of the.

Wiring diagram line and load disconnect. Wiring diagrams help technicians to determine the way the controls are wired to the system. If the disconnect is added to an existing ac unit it should be within reach of the already existing cable so only a short cable is needed to bridge the switch to the ac unit. 4 wire 3 phase line markings. 3 way switch wiring diagram with line and load in the same switch box.

Step 2 prepare to wire the disconnect switch. If the two loads are connected in series then the voltage between l1 and l2 must divide across both loads when s1 is closed. In the above diagram the white wire must be re identified as a hot wire at each switch location. The load side is the side that is connected to what you are supplying power to.

If the current draw is 48 amps you will need a disconnect rated for 60 amps. The side of the meter that receives incoming power from the utility service lines is called the line side. The white wire between switches is not being used as a neutral. There are two hot wires and a neutral wire.

The hot wires each carry 120 volts and are different phases. An example of three way switch wiring with the line and load in the same 4 square electrical box. Load orange x2. This type of diagram is similar to choosing a photograph with the parts and wires all connected up.

200 amp disconnect wiring diagram. The electrical wiring to the disconnect is fed from the load side or outgoing side of the electric meter. For example a conventional wall switch which is a single pole single throw switch works equally well whether you attach the live circuit wire line to the top brass terminal or the bottom because the switch has only two positions open or closed the terminal connections are directional on a double throw switch on the. The service panel also has line and load connections the line feeds the main breaker in the panel while the individual branch circuit breakers can be considered the load with respect to the.

Line and load will be clearly labeled on the back of the gfci outlet and often times the load side will be covered with a piece of tape. If the current draw is 28 amps you will need a disconnect rated for 30 amps. The line side is the cable supplying voltage from your electrical panel. The incoming feed from the utility company comes into the line side of an electric meter.

Distinguishing between line and load isn t always necessary. Refer to the diagram above about wiring gfci receptacles for additional help. Wiring diagram book a1 15 b1 b2 16 18 b3 a2 b1 b3 15 supply voltage 16 18 l m h 2 levels b2 l1 f u 1 460 v f u 2 l2 l3 gnd h1 h3 h2 h4 f u 3 x1a f u 4 f u 5 x2a r power on optional x1 x2115 v 230 v h1 h3 h2 h4 optional connection electrostatically shielded transformer f u 6 off on m l1 l2 1 2. It leaves the meter from the load side and then feeds the line side of a disconnect or electrical service panel.

14 one load per line two loads must not be connected in series on one line of a line diagram. The result is that neither device receives the entire 120 v necessary for proper operation.