Electrical Symbols — Switches and Relays
In electrical engineering, a switch is an electrical component that can break an electrical circuit, interrupting the current or diverting it from one conductor to another. The mechanism of a switch may be operated directly by a human operator to control a circuit (for example, a light switch or a keyboard button), may be operated by a moving object such as a door-operated switch, or may be operated by some sensing element for pressure, temperature or flow. A relay is a switch that is operated by electricity. Switches are made to handle a wide range of voltages and currents; very large switches may be used to isolate high-voltage circuits in electrical substations.
Pic. 1. Switches and Relays Library
ConceptDraw DIAGRAM is a powerful software for creating professional looking electrical diagram quick and easy. For this purpose you can use the Electrical Engineering solution from the "Industrial Engineering" area of ConceptDraw Solution Park.
Electrical Engineering Solution for ConceptDraw DIAGRAM provides the stencils libraries of ready-to-use predesigned 926 vector symbols, templates and samples that make your electrical drawing quick, easy and effective.
26 libraries of the Electrical Engineering Solution of ConceptDraw DIAGRAM make your electrical diagramming simple, efficient, and effective. You can simply and quickly drop the ready-to-use objects from libraries into your document to create the electrical diagram.
Pic. 2. Electrical Engineering symbols
Electrical diagram software will assist you in drawing your electrical diagrams with minimal effort and makes it very easy for beginners.
Electrical symbols and smart connectors help present your electrical drawings, electrical schematic, wiring diagrams and blue prints.
Pic. 3. Electrical Symbols — Switches and Relays
Most of the electrical symbols can be changed in their appearance, styles and colors according to users' requirements. Electrical symbols are used to represent various electrical and electronic devices in a schematic diagram of an electrical or electronic circuit.
The following table lists some switches and relays electrical symbols in our electrical diagram software.
| Electrical Symbols — Switches and Relays
|Two way contact|
|Spring return 2|
|Spring return 3|
|Limit switch n/o|
|Limit switch n/c|
|2 position switch|
|3 position switch|
|4 position switch|
|Proximity limit switch|
|Time delay make|
|Time delay break|
|Time delay make 2|
|Time delay break 2|
|Liquid level actuated|
|Liquid level actuated 2|
|Gas flow actuated|
|Mercury switch 2|
|Relay, magnetically polarized|
|Relay, high speed|
|Relay, mechanically latched|
|Pilot light, push-to-test|
A relay is an electrically operated switch. Many relays use an electromagnet to mechanically operate a switch, but other operating principles are also used, such as solid-state relays. Relays are used where it is necessary to control a circuit by a separate low-power signal, or where several circuits must be controlled by one signal.
How to Create an Electrical Diagram Using Switches and Relays Library
TEN RELATED HOW TO's:
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This drawing includes the graphic symbols that may be in use while creating a logic circuit diagram. The diagrams of such kind are used in the electronics industry. The logic symbol depicts a device that realizes a Boolean type functions. Practically a logic symbol means transistor, diodes, relays, and other mechanical or optical details which provide function of closing or opening "gates". Totally the logic circuits can involve millions of gates. ConceptDraw Electrical Engineering solution gives the opportunity to create a circuit diagrams both simple and difficult.
Picture: Circuits and Logic Diagram Software
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Picture: Interior Design. Site Plan — Design Elements
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This local area network (LAN) diagram provides an easy way to see the way the devices in a local network are interacted. The diagram uses a library containing specific symbols to represent network equipment , media and the end-user devices such as computers (PC, mac, laptop) , network printer, hubs, server and finally a modem. There are two types of network topologies: physical and logical. The current diagram represents precisely a physical type of LAN topology because it refers to the physical layout of a local network equipment.
Picture: Local area network (LAN). Computer and Network Examples
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Picture: Cafe Floor Plan. Cafe Floor Plan Examples
The Cisco Network Diagrams solution from the Computer and Networks area of ConceptDraw Solution Park provides a wide collection of predesigned templates and samples that help you to create the Cisco Network Diagrams in one moment.
Picture: Cisco Network Examples and Templates
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ConceptDraw DIAGRAM diagramming and vector drawing software extended with Flowcharts Solution from the "Diagrams" Area of ConceptDraw Solution Park is the best way to create Process Flow Chart and other types of flowcharts.
Picture: Process Flow Chart
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Picture: Flow Chart Symbols
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This example was created in ConceptDraw DIAGRAM using the Computer and Networks Area of ConceptDraw Solution Park and shows the Physical star network.
Picture: Physical network. Computer and Network Examples
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Picture: VMware vNetwork Distributied Switch (vDS). Computer and Network Examples
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This example was created in ConceptDraw DIAGRAM using the Computer and Networks solution from the Computer and Networks area of ConceptDraw Solution Park.
Picture: Network wiring cable. Computer and Network Examples