Quick Answer: What’S The Difference Between SP And DP Sockets?

What does SP and DP mean on sockets?

SP – Single Pole.

Switch isolates just the live conductor.

DP – Double Pole.

Switch isolates both the live and neutral conductor.

Use Double Pole (DP) sockets..

What is difference between single and double pole sockets?

The pole of a switch refers to the amount of separate circuits that switch can control. Single pole switches can control just one circuit and a double pole switch can control two circuits. So a double pole switch is almost like having two single pole switches, controlled by the same switch.

What is the difference between SP switched and DP switched?

Pole refers to the number of circuits controlled by the switch: SP switches control only one electrical circuit. DP switches control two independent circuits (and act like two identical switches that are mechanically linked).

Do I need a single or double pole socket?

In summary so long as everything is wired correctly single pole will suffice but to guard against a Live/Neutral reversal double pole switching will always ensure safe disconnection.

What is DP electrical?

A distribution board (also known as panelboard, breaker panel, or electric panel) is a component of an electricity supply system that divides an electrical power feed into subsidiary circuits, while providing a protective fuse or circuit breaker for each circuit in a common enclosure.

What are the 4 types of switches?

4 Types of Switches Basic types of switches are SPST, SPDT, DPST and DPDT. These are briefly discussed below.

Do I need a double pole switch?

A 240-Volt Circuit Needs a Double-Pole Switch Circuits using only one hot wire need a neutral wire to complete the circuit, and the voltage between the hot wire and the neutral is 120 volts. … That’s why you need a double-pole switch, which is technically one that controls two circuits.

What does 2 Pole mean in electrical?

2-pole means that the device plug is not earthed and it normally has two pins that transmit electricity. Originally, all electrical devices were fitted with 2-pole plugs, which means that the devices were not earthed and that all mains sockets were constructed for 2-pole plugs.

Why would you use a double pole switch?

Double pole light switches, also known as a four-way switch, are two single pole switches put together. … This is typically used to control a circuit from multiple locations in a series of three switches on one circuit. A double pole switch can be used to control light and a fan or 2 lights on separate circuits.

What’s a DP switch?

Definition of double-pole switch : an electrical switch having two blades with their contacts for simultaneous opening or closing both sides of a circuit.

What is a 20 Amp DP Switch used for?

This 20A double pole switch is similar in appearance to a light switch, however would normally be used for a fixed appliance such as a water heater.

Are MK sockets any good?

Mk aren’t the quality they used to be, but are still very good. I’ve fitted a few of the MK USB ones, and you can tell the quality is there with the size of the transformer and PCB.