Electrical contacts and components

Details of electrical components contact items

Here are some common electrical components and their contact items:

Switch :

Toggle Switch: It has two contact points that can be connected or disconnected by flipping a lever.

Rotary Switch: It has multiple contact points arranged in a circular pattern and the circuit is completed by rotating a selector to the desired contact.

Push-button switch: It has a momentary contact, where the circuit is only closed when the button is pressed.

Rocker Switch: This is similar to a toggle switch but has a rocking mechanism to activate the contact.

Relay:
Coil Contacts: These are the primary contacts connected to the relay coil.  When the coil is energized, these contacts close or open the circuit of the secondary contacts.

Normally Open (NO) Contacts: These contacts are open when the relay coil is not energized and they are closed when the coil is energized.

Normally Closed (NC) Contacts: These contacts close when the relay coil is not energized and they open when the coil is energized.

Connector:
Pin Contacts: These are small metal pins that provide an electrical connection when inserted into a corresponding socket.

Socket Contacts: These are receptacles that accept pin contacts, making an electrical connection.

Blade Contacts: These are flat metal blades used in connectors to make electrical connections.

Spring Contacts: These contacts use a spring-loaded mechanism to provide a secure electrical connection when inserted or pressed.

Terminal:
Screw terminals These consist of a screw and a metal plate.  The wire is inserted and tightened under the screw to make the connection.

Spring terminals: These terminals have a spring mechanism that grips the wire, providing a secure connection.

Insulation Displacement Terminals (IDTs): These terminals pierce the wire insulation when inserted, making a connection without the need to strip the wire.

Plugs and sockets:

AC Power Plugs: These are used to connect electrical devices to AC power outlets.

They usually have metal prongs or pins that fit into corresponding slots in a socket.

DC Power Plug: These connectors are used for low-voltage DC power connections, such as those used for laptops or mobile devices.

Audio/Video Connectors: These connectors, such as RCA, HDMI, or USB, are used to transmit audio, video, or data signals between devices.

Fuse contact:

Fuse Holder Contacts: These contacts hold the fuse in place and allow electrical current to flow through the fuse when it is intact.

In case of excessive current, the fuse will blow and break the connection.

These are some examples of electrical components and their contact items. Specific contact items may vary depending on the material and its intended use.

Of course!  Here are some other electrical components and their contact items:

Contacts: The contacts of a circuit breaker are the points where electric current flows when the breaker is closed. They may open or close depending on the condition of the circuit breaker.

Circuit Breaker:

Contact Arms: These are the moving metal arms that make or break the electrical connection in the circuit breaker.

Capacitor:

Capacitor Plates: These are conductive plates inside a capacitor that store electrical energy.  The plates are separated by a dielectric material but can store a charge and create an electric field between them.

Diode:
Anode: Anode is the positive terminal of a diode, where current flows.

Cathode: The cathode is the negative terminal of a diode, where the current exits. This is usually indicated by a stripe or other indicator on the diode.

Promoter:

Coil Winding: Inductors are composed of coils of wire wound around a core. The coil windings act as points of contact through which electric current flows, creating a magnetic field.

Transistor:
Emitter: The emitter is one of the three terminals of a transistor. It is charge carrier in transistor and many more etc.