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The vector stencils library "Switches and relays" contains 58 symbols of electrical contacts, switches, relays, circuit breakers, selectors, connectors, disconnect devices, switching circuits, current regulators, and thermostats for electrical devices.
"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 most familiar form of switch is a manually operated electromechanical device with one or more sets of electrical contacts, which are connected to external circuits. Each set of contacts can be in one of two states: either "closed" meaning the contacts are touching and electricity can flow between them, or "open", meaning the contacts are separated and the switch is nonconducting. The mechanism actuating the transition between these two states (open or closed) can be either a "toggle" (flip switch for continuous "on" or "off") or "momentary" (push-for "on" or push-for "off") type.
A switch may be directly manipulated by a human as a control signal to a system, such as a computer keyboard button, or to control power flow in a circuit, such as a light switch. Automatically operated switches can be used to control the motions of machines, for example, to indicate that a garage door has reached its full open position or that a machine tool is in a position to accept another workpiece. Switches may be operated by process variables such as pressure, temperature, flow, current, voltage, and force, acting as sensors in a process and used to automatically control a system. ... A switch that is operated by another electrical circuit is called a relay. Large switches may be remotely operated by a motor drive mechanism. Some switches are used to isolate electric power from a system, providing a visible point of isolation that can be padlocked if necessary to prevent accidental operation of a machine during maintenance, or to prevent electric shock." [Switch. Wikipedia]
"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 low-power signal (with complete electrical isolation between control and controlled circuits), or where several circuits must be controlled by one signal. The first relays were used in long distance telegraph circuits as amplifiers: they repeated the signal coming in from one circuit and re-transmitted it on another circuit. Relays were used extensively in telephone exchanges and early computers to perform logical operations.
A type of relay that can handle the high power required to directly control an electric motor or other loads is called a contactor. Solid-state relays control power circuits with no moving parts, instead using a semiconductor device to perform switching. Relays with calibrated operating characteristics and sometimes multiple operating coils are used to protect electrical circuits from overload or faults; in modern electric power systems these functions are performed by digital instruments still called "protective relays"." [Relay. Wikipedia]
The shapes example "Design elements - Switches and relays" was drawn using the ConceptDraw PRO diagramming and vector drawing software extended with the Electrical Engineering solution from the Engineering area of ConceptDraw Solution Park.
Switch and relay symbols
Switch and relay symbols, two way contact, time delay make, open switch, time-delay closing, TDC, time delay make, normally open, time delay break, normally closed, time delay break, closed switch, time-delay opening, TDO, thermostat, temperature switch, temperature sensitive switch, temperature actuated switch, switch disconnector, isolating-switch, stay put, contact without spring return, spring return, make, spring return, break, spring return, shorting selector, make-before-break, shorting, bridging,  contact transfer, selector switch, break-before-make, nonshorting, nonbridging, contact transfer, safety interlock, circuit opening, relay contacts, relay coil, relay, pushbutton, make, circuit closing, mushroom head, push-pull head, pushbutton, break, circuit opening, mushroom head, push-pull head, pushbutton, 2-circuit, circuit opening, break, proximity limit switch, directly actuated, spring returned, normally closed, pressure actuated switch, pilot light, passing make-contact, mercury switch, manual switch, manually operated switch, make contact, liquid level actuated switch, limit switch, directly actuated, spring returned, normally open, limit switch, directly actuated, spring returned, normally closed, limit switch, isolator, inertia switch, gas flow actuated switch, fuse, flow actuated, circuit breaker, change-over contact, break contact, SPST, single-pole, single-throw, switch, SPDT, single-pole, double-throw, switch, DPST, double-pole, single-throw, switch, DPDT, double-pole, double-throw, switch, 4 position, switch, 3 position, three-position, switch, 2 position, switch,
The vector stencils library "Transformers and windings" contains 29 element symbols of transformers, windings, couplers, metering devices, transductors, magnetic cores, chokes, and a variometer.
Use it to design the electromechanical device schematics and electronic circuit diagrams.
"A transformer is an electrical device that transfers energy between two circuits through electromagnetic induction. Transformers may be used in step-up or step-down voltage conversion, which 'transforms' an AC voltage from one voltage level on the input of the device to another level at the output terminals. This special function of transformers can provide control of specified requirements of current level as an alternating current source, or it may be used for impedance matching between mismatched electrical circuits to effect maximum power transfer between the circuits.
A transformer most commonly consists of two windings of wire that are wound around a common core to induce tight electromagnetic coupling between the windings. The core material is often a laminated iron core. The coil that receives the electrical input energy is referred to as the primary winding, while the output coil is called the secondary winding.
An alternating electric current flowing through the primary winding (coil) of a transformer generates an electromagnetic field in its surroundings and a varying magnetic flux in the core of the transformer. By electromagnetic induction this magnetic flux generates a varying electromotive force in the secondary winding, resulting in a voltage across the output terminals. If a load impedance is connected across the secondary winding, a current flows through the secondary winding drawing power from the primary winding and its power source." [Transformer. Wikipedia]
"An electromagnetic coil (or simply a "coil") is formed when a conductor is wound around a core or form to create an inductor or electromagnet. When electricity is passed through a coil, it generates a magnetic field. One loop of wire is usually referred to as a turn or a winding, and a coil consists of one or more turns. For use in an electronic circuit, electrical connection terminals called taps are often connected to a coil. Coils are often coated with varnish or wrapped with insulating tape to provide additional insulation and secure them in place. A completed coil assembly with one or more set of coils and taps is often called the windings.
Windings are used in transformers, electric motors, inductors, solenoids, loudspeakers, and many other applications." [Electromagnetic coil. Wikipedia]
The shapes example "Design elements - Transformers and windings" was drawn using the ConceptDraw PRO diagramming and vector drawing software extended with the Electrical Engineering solution from the Engineering area of ConceptDraw Solution Park.
Transformer and winding symbols
Transformer and winding symbols, variometer, triplex, induction voltage regulator, transformer, magnetic-core, mutual inductor, transformer, magnetic-core, 2 windings, adjustable, transformer, magnetic-core, 1 winding, adjustable, transformer, magnetic-core, transformer, air-core, mutual inductor, transformer, air-core, 2 windings, adjustable, transformer, air-core, 1 winding, adjustable, transformer, air-core, transformer, transductor, saturating transformer, potential transformer, winding, potential transformer, outdoor metering device, magnetic core, linear coupler, induction voltage regulator, current transformer, bushing-type, current transformer, coaxial choke, magnetic core, choke, reactor, adjustable transformer, 1 winding, adjustable transformer,  mutual inductor, 1-phase, induction voltage regulator,
The vector stencils library "Switches" contains 25 symbols of electrical and light switches and breakers.
"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 most familiar form of switch is a manually operated electromechanical device with one or more sets of electrical contacts, which are connected to external circuits.
A switch may be directly manipulated by a human as a control signal to a system, ... or to control power flow in a circuit, such as a light switch. Automatically operated switches can be used to control the motions of machines, for example, to indicate that a garage door has reached its full open position or that a machine tool is in a position to accept another workpiece. Switches may be operated by process variables such as pressure, temperature, flow, current, voltage, and force, acting as sensors in a process and used to automatically control a system. For example, a thermostat is a temperature-operated switch used to control a heating process. A switch that is operated by another electrical circuit is called a relay." [Switch. Wikipedia]
Use the design elements library "Switches" for drawing light switches layouts, electrical and telecommunication equipment floor plans for building design and construction using the ConceptDraw PRO diagramming and vector drawing software.
The shapes library "Switches" is included in the Electric and Telecom Plans solution from the Building Plans area of ConceptDraw Solution Park.
Electrical switch symbols
Electrical switch symbols, weatherproof, circuit breaker, weatherproof switch, weatherproof fused switch, three-way switch, switch, timer, switch, pilot lamp, switch control, single pole, double throw switch, single pole switch, remote control switch, momentary contact switch, low voltage, switch, low voltage, master switch, key operated switch, pilot light, key operated switch, horizontally mounted, switch, glow switch toggle, fused switch, four-way switch, electrolier switch, double pole switch, dimmer switch, circuit breaker, automatic door switch,
The vector stencils library "Lamps, acoustics, readouts" contains 35 element symbols of lamps, acoustic components, electrical measuring instruments for drawing electrical schematics and electronic circuit diagrams.
"Electrical measurements are the methods, devices and calculations used to measure electrical quantities. Measurement of electrical quantities may be done to measure electrical parameters of a system. Using transducers, physical properties such as temperature, pressure, flow, force, and many others can be converted into electrical signals, which can then be conveniently measured and recorded." [Electrical measurements. Wikipedia]
"A lamp is a replaceable component such as an incandescent light bulb, which is designed to produce light from electricity." [Lamp (electrical component). Wikipedia]
"An electric bell is a mechanical bell that... functions by means of an electromagnet. When an electric current is applied, it produces a repetitive buzzing or clanging sound." [Electric bell. Wikipedia]
"A buzzer or beeper is an audio signalling device, which may be mechanical, electromechanical, or piezoelectric." [Buzzer. Wikipedia]
"Electronic sirens incorporate circuits such as oscillators, modulators, and amplifiers to synthesize a selected siren tone (wail, yelp, pierce/ priority/ phaser, hi-lo, scan, airhorn, manual, and a few more) which is played through external speakers." [Siren (noisemaker). Wikipedia]
"A microphone (colloquially called a mic or mike...) is an acoustic-to-electric transducer or sensor that converts sound in air into an electrical signal. ...
Most microphones today use electromagnetic induction (dynamic microphone), capacitance change (condenser microphone) or piezoelectric generation to produce an electrical signal from air pressure variations." [Microphone. Wikipedia]
The symbols example "Design elements - Lamps, acoustics, readouts" was drawn using the ConceptDraw PRO diagramming and vector drawing software extended with the Electrical Engineering solution from the Engineering area of ConceptDraw Solution Park.
Lamps, acoustics, electrical measuring instruments
Lamps, acoustics, electrical measuring instruments, speaker, microphone, speaker, microphone, push-pull, microphone, capacitor, microphone, lamp, signal lamp, lamp, non-indicating lamp, lamp, indicating lamp, lamp, indicator, meter, wavemeter, indicator, meter, voltmeter, indicator, meter, thermometer, indicator, meter, synchroscope, indicator, meter, oscilloscope, indicator, meter, galvanometer, indicator, meter, frequency meter, indicator, meter, ammeter, fluorescent lamp, buzzer, bell, siren, bell,
The vector stencils library "Terminals and connectors" contains 43 element symbols of terminals, connectors, plugs, polarized connectors, jacks, coaxial cables, and conductors.
Use it for drawing the wiring diagrams, electrical layouts, electronic schematics, and circuit diagrams.
"An electrical connector is an electro-mechanical device for joining electrical circuits as an interface using a mechanical assembly. Connectors consist of plugs (male-ended) and jacks (female-ended). The connection may be temporary, as for portable equipment, require a tool for assembly and removal, or serve as a permanent electrical joint between two wires or devices. An adapter can be used to effectively bring together dissimilar connectors.
There are hundreds of types of electrical connectors. Connectors may join two lengths of flexible copper wire or cable, or connect a wire or cable or optical interface to an electrical terminal.
In computing, an electrical connector can also be known as a physical interface... Cable glands, known as cable connectors in the US, connect wires to devices mechanically rather than electrically and are distinct from quick-disconnects performing the latter." [Electrical connector. Wikipedia]
"A terminal is the point at which a conductor from an electrical component, device or network comes to an end and provides a point of connection to external circuits. A terminal may simply be the end of a wire or it may be fitted with a connector or fastener. In network analysis, terminal means a point at which connections can be made to a network in theory and does not necessarily refer to any real physical object. In this context, especially in older documents, it is sometimes called a "pole".
The connection may be temporary, as seen in portable equipment, may require a tool for assembly and removal, or may be a permanent electrical joint between two wires or devices.
All electric cell have two terminals. The first is the positive terminal and the second is the negative terminal. The positive terminal looks like a metal cap and the negative terminal looks like a metal disc. The current flows from the positive terminal, and out through the negative terminal, replicative of current flow (positive (+) to negative (-) flow)." [Terminal (electronics). Wikipedia]
The shapes example "Design elements - Terminals and connectors" was drawn using the ConceptDraw PRO diagramming and vector drawing software extended with the Electrical Engineering solution from the Engineering area of ConceptDraw Solution Park.
Terminal and connector symbols
Terminal and connector symbols, terminal board, terminal strip, small, D connector, D-type connector, shielded, RCA, plug, shielded, RCA, jack, normalled, jack, circuit, male contact, large, D connector, D-type connector, female contact, coaxial, outside conductor, coaxial plug, coaxial jack, circuit terminal, center conductor coaxial, outside conductor, chassis, cable termination, single line, cable termination, complete, adapter, male-male, adapter, male-female, C header connector, 15 pin, type C, AC out, AC power out, 3-conductor, polarized connector, male, 3-conductor, polarized connector, female, 2-conductor, plug, 2-conductor, nonpolarized connector, male, 2-conductor, nonpolarized connector, female, 2-conductor, jack,
The vector stencils library "Thermo" contains 14 symbols of thermoelectric elements: thermal element, thermocouples with and without heating elements, thermoplile.
Use it for drawing electrical layouts, electronic schematics, and circuit diagrams.
"The thermoelectric effect is the direct conversion of temperature differences to electric voltage and vice versa. A thermoelectric device creates voltage when there is a different temperature on each side. Conversely, when a voltage is applied to it, it creates a temperature difference. At the atomic scale, an applied temperature gradient causes charge carriers in the material to diffuse from the hot side to the cold side.
This effect can be used to generate electricity, measure temperature or change the temperature of objects. Because the direction of heating and cooling is determined by the polarity of the applied voltage, thermoelectric devices can be used as temperature controllers.
The term "thermoelectric effect" encompasses three separately identified effects: the Seebeck effect, Peltier effect, and Thomson effect. Textbooks may refer to it as the Peltier–Seebeck effect. ...
Thermocouples and thermopiles are devices that use the Seebeck effect to measure the temperature difference between two objects, one connected to a voltmeter and the other to the probe. The temperature of the voltmeter, and hence that of the material being measured by the probe, can be measured separately using cold junction compensation techniques." [Thermoelectric effect. Wikipedia]
The shapes example "Design elements - Thermo" was drawn using the ConceptDraw PRO diagramming and vector drawing software extended with the Electrical Engineering solution from the Engineering area of ConceptDraw Solution Park.
Thermoelectric elements
Thermoelectric elements, thermopile, thermal element, thermomechanical transducer, temperature-measuring, thermocouple, non-insulated heating element, temperature-measuring, thermocouple, insulated heating element, temperature-measuring, thermocouple,
The vector stencils library "Electrical circuits" contains 49 element symbols of electrical and electronic devices, including ignitors, starters, transmitters, circuit protectors, transducers, radio and audio equipment.
Use it for drawing electronic circuit diagrams and electrical schematics in the ConceptDraw PRO diagramming and vector drawing software extended with the Electrical Engineering solution from the Engineering area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ engineering-electrical
Ground
Ground, ground connection, ground,
Equipotentiality
Equipotentiality, equipotentiality,
Igniter plug
Igniter plug, igniter plug,
Junction
Junction, junction,
Chassis
Chassis, chassis, frame ground connection,
Chassis 2
Chassis 2, chassis, frame ground connection,
Capacitor
Capacitor, fixed capacitor, capacitor,
Variable capacitor
Variable capacitor, variable capacitor, capacitor,
Capacitor 2
Capacitor 2, fixed capacitor, capacitor,
Variable capacitor 2
Variable capacitor 2, variable capacitor, capacitor,
Antenna
Antenna, antenna,
Antenna 2
Antenna 2, loop antenna, antenna,
Circuit breaker
Circuit breaker,
Fuse
Fuse, fuse,
Fuse 2
Fuse 2, fuse,
Alarm fuse
Alarm fuse, alarm fuse, fuse,
Alarm fuse 2
Alarm fuse 2, alarm fuse, fuse,
Circular generic component
Circular generic component, component,
Rectangular generic component
Rectangular generic component, component,
Transducer
Transducer, transducer,
Capacitive transducer
Capacitive transducer, capacitive transducer, transducer,
Non-capacitive transducer
Non-capacitive transducer, non-capacitive transducer, transducer,
Recording pickup head
Recording pickup head, pickup head, recording pickup head,
Reproducing pickup head
Reproducing pickup head, pickup head, reproducing pickup head,
Positive pulse
Positive pulse, pulse,
Negative pulse
Negative pulse,
Alternating pulse
Alternating pulse, pulse,
Saw tooth
Saw tooth, saw tooth, signal,
Positive step function
Positive step function, step function,
Negative step function
Negative step function,
Explosive squib
Explosive squib, explosive squib, electric explosive squib,
Sensing link squib
Sensing link squib, sensing link squib, electric sensing link squib,
Squib ignitor
Squib ignitor, squib ignitor, electric squib ignitor,
Unspecified material
Unspecified material, material,
Solid material
Solid material, solid material, material,
Semiconducting material
Semiconducting material, semiconducting material, material,
Liquid
Liquid, liquid, liquid material,
Insulating material
Insulating material, material, insulating material,
Gas
Gas, gas, gas material,
Electret
Electret, electret, electret material, material,
Surge protector
Surge protector, surge protector,
Multigap surge protector
Multigap surge protector, multigap surge protector, surge protector,
Valve surge protector
Valve surge protector, valve surge protector, surge protector,
Electrolytic surge protector
Electrolytic surge protector, electrolytic surge protector, surge protector,
Carbon block surge protector
Carbon block surge protector, carbon block surge protector, surge protector,
Protective gap surge protector
Protective gap surge protector, protective gap surge protector, protective gap, surge protector,
Sphere gap surge protector
Sphere gap surge protector, sphere gap surge protector, sphere gap, surge protector,
Horn gap surge protector
Horn gap surge protector, horn gap surge protector, horn gap, surge protector,
Circuit breaker
Circuit breaker, circuit breaker,
The vector stencils library "Power sources" contains 9 element symbols of power sources and batteries for drawing the electrical schematics and electronic circuit diagrams.
"A power supply is a device that supplies electric power to an electrical load. The term is most commonly applied to electric power converters that convert one form of electrical energy to another, though it may also refer to devices that convert another form of energy (mechanical, chemical, solar) to electrical energy. A regulated power supply is one that controls the output voltage or current to a specific value; the controlled value is held nearly constant despite variations in either load current or the voltage supplied by the power supply's energy source.
Every power supply must obtain the energy it supplies to its load, as well as any energy it consumes while performing that task, from an energy source. Depending on its design, a power supply may obtain energy from:
(1) Electrical energy transmission systems. Common examples of this include power supplies that convert AC line voltage to DC voltage.
(2) Energy storage devices such as batteries and fuel cells.
(3) Electromechanical systems such as generators and alternators.
(4) Solar power." [Power supply. Wikipedia]
The shapes example "Design elements - Power sources" was drawn using the ConceptDraw PRO diagramming and vector drawing software extended with the Electrical Engineering solution from the Engineering area of ConceptDraw Solution Park.
Power source symbols
Power source symbols, oscillator, alternating-current source, ideal source,  ideal voltage source, ideal source,  ideal current source, battery, DC source, DC voltage source, DC source, DC current source, AC source, AC voltage source, AC source, AC current source,

electrical diagram, electrical engineering, electrical schematic, electrical schematic symbols, electrical diagram symbols  Electrical Engineering

electrical diagram, electrical engineering, electrical schematic, electrical schematic symbols, electrical diagram symbols
This solution extends ConceptDraw PRO v.9.5 (or later) with electrical engineering samples, electrical schematic symbols, electrical diagram symbols, templates and libraries of design elements, to help you design electrical schematics, digital and analog