A 2 pole changeover switch is a type of switch that is commonly used in electrical circuits. It is a switch that has two sets of contacts that can be switched between two positions. In one position, the contacts are connected to one set of terminals, while in the other position, they are connected to a different set of terminals. This allows the switch to be used to switch a circuit between two different sources, or to switch between two different circuits.
What is a 2 Pole Changeover Switch?
A 2 pole changeover switch is a type of switch that has two sets of contacts that can be switched between two positions. This type of switch is commonly used in electrical circuits to switch between two different sources or to switch between two different circuits. The switch can be used to manually switch between the two positions, or it can be controlled by an electrical or mechanical device that automatically switches the contacts between the two positions.
The switch is also known as a DPDT (double pole, double throw) switch, because it has two sets of contacts that can be switched between two different positions. The two sets of contacts are typically referred to as “poles”, and the two positions are often referred to as “throws”.
Wiring Diagram for a 2 Pole Changeover Switch
The wiring diagram for a 2 pole changeover switch is relatively simple. The switch has six terminals, which are usually labeled in the following way:
| Label | Description |
|---|---|
| 1 | Common terminal for pole 1 |
| 2 | Normally open terminal for pole 1 |
| 3 | Normally closed terminal for pole 1 |
| 4 | Common terminal for pole 2 |
| 5 | Normally open terminal for pole 2 |
| 6 | Normally closed terminal for pole 2 |
The wiring diagram for a 2 pole changeover switch is shown below:
In this wiring diagram, the switch is shown in the “normal” position, where the contacts are connected to the “normally closed” terminals. When the switch is moved to the other position, the contacts will be connected to the “normally open” terminals.
Wiring the Switch to Control a Single Load
If you want to use the switch to switch a single load between two sources, you can wire the switch as shown in the following diagram:
In this wiring diagram, the switch is used to switch a lamp between a battery and a generator. When the switch is in the “battery” position, the lamp will be powered by the battery. When the switch is in the “generator” position, the lamp will be powered by the generator.
Wiring the Switch to Control Two Loads
If you want to use the switch to switch between two different loads, you can wire the switch as shown in the following diagram:
In this wiring diagram, the switch is used to switch between two different lamps. When the switch is in the “lamp 1” position, lamp 1 will be powered. When the switch is in the “lamp 2” position, lamp 2 will be powered.
FAQ
What is the function of a 2 pole changeover switch?
A 2 pole changeover switch is used to switch a circuit between two different sources or to switch between two different circuits.
How do I wire a 2 pole changeover switch?
The wiring diagram for a 2 pole changeover switch is relatively simple. The switch has six terminals, which are usually labeled in the following way: 1. Common terminal for pole 1, 2. Normally open terminal for pole 1, 3. Normally closed terminal for pole 1, 4. Common terminal for pole 2, 5. Normally open terminal for pole 2, 6. Normally closed terminal for pole 2.
Can a 2 pole changeover switch be used to switch more than two circuits or sources?
No, a 2 pole changeover switch is only designed to switch between two circuits or sources.
Can a 2 pole changeover switch be used to switch DC circuits?
Yes, a 2 pole changeover switch can be used to switch both AC and DC circuits.
What is the difference between a 2 pole changeover switch and a 3 pole changeover switch?
A 2 pole changeover switch has two sets of contacts that can be switched between two positions, while a 3 pole changeover switch has three sets of contacts that can be switched between three positions.
