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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 "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,
The vector stencils library "Qualifying" contains 56 qualifying symbols of radiation, polarity, phase, windings, wire, ground, connection, connector, coaxial, electret.
Use these signs to annotate or specify characteristics of objects in electrical drawings, electronic schematics, circuit diagrams, electromechanical drawings, and wiring diagrams, cabling layout diagrams.
"An electrical drawing, is a type of technical drawing that shows information about power, lighting, and communication for an engineering or architectural project. Any electrical working drawing consists of "lines, symbols, dimensions, and notations to accurately convey an engineering's design to the workers, who install the electrical system on the job".
A complete set of working drawings for the average electrical system in large projects usually consists of:
(1) A plot plan showing the building's location and outside electrical wiring.
(2) Floor plans showing the location of electrical systems on every floor.
(3) Power-riser diagrams showing panel boards.
(4) Control wiring diagrams.
(5) Schedules and other information in combination with construction drawings.
Electrical drafters prepare wiring and layout diagrams used by workers who erect, install, and repair electrical equipment and wiring in communication centers, power plants, electrical distribution systems, and buildings." [Electrical drawing. Wikipedia]
The signs example "Design elements - Qualifying" 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.
Qualifying symbols
Qualifying symbols, special connector, cable indicator, radiation, radiation travel, direction, positive polarity, phase, windings, wire, connection, zigzag, phase, windings, wire, connection, star, phase, windings, wire, connection, polygon, phase, windings, wire, connection, fork, phase, windings, wire, connection, double star, phase, windings, wire, connection, double delta, phase, windings, wire, connection, delta, phase, windings, wire, connection, neutral, conductor, negative polarity, multiple-phase, electret, coaxial line, coaxial,

mechanical engineering, mechanical design software, mechanical drawing symbols, mechanical drawing software Mechanical Engineering

mechanical engineering, mechanical design software, mechanical drawing symbols, mechanical drawing software
This solution extends ConceptDraw PRO v.9 mechanical drawing software (or later) with samples of mechanical drawing symbols, templates and libraries of design elements, for help when drafting mechanical engineering drawings, or parts, assembly, pneumatic,
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 "Electrical and telecom" contains 83 symbols of electrical and telecommunication equipment for electrical drawings and wiring diagrams of buildings, communication centers, power plants and electrical distribution systems.
"An electrical drawing, is a type of technical drawing that shows information about power, lighting, and communication for an engineering or architectural project." [Electrical drawing. Wikipedia]
Use the design elements library "Electrical and telecom" to design your own electrical drawings, plot plans of the building outside electrical wiring, floor plans with electrical and telecommunication systems layout, power-riser diagrams with panel boards, control wiring diagrams and cabling layout schemes, reflected ceiling plans and lighting panels layouts using the ConceptDraw PRO diagramming and vector drawing software.
The shapes library "Electrical and telecom" is included in the Electric and Telecom Plans solution from the Building Plans area of ConceptDraw Solution Park.
Electrical and telecom symbols
Electrical and telecom symbols, watchman's station, watchman's central station, wall mounted, telephone box, data junction box, hardware, wall mounted, electrical junction box, hardware, wall light, three, poly phase, thermostat, telephone outlet, telephone key system, surface fluorescent light, stereo speaker outlet, stereo outlet, socket outlet, power outlet, switched socket, socket outlet, power outlet, double socket, socket outlet, power outlet, single phase, signal central station, push button, pull-cord switch, outside antenna, outdoor lightning, bollard, outdoor lightning, motion sensor, modular fluorescent fitting, main control, intake, maid's dignal plug, magnetic door hold, luminaire ceiling mount, light bar, intercom, inside antenna, illuminated emergency sign, emergency sign, horn, hold open unit,  electro magnetic door, ground connection, ground, fire alarm station, fire alarm sounder, fire alarm, fire alarm central station, fire alarm bell, enclosed ceiling luminaire, emergency release button, emergency light, emergency lightning point, electrical switch, switch, multi-switch, electrical switch, switch, electrical service panel, service panel, electric, door opener, electric motors, down lighter, doorbell transformer, doorbell chime, doorbell, dimmer switch, digital satellite system, detector, surface mounted, heat detector, smoke detector, city fire alarm station, fire alarm station, ceiling fan, exhaust fan fixture, card reader, access system, cable television outlet, television outlet, cable TV outlet, TV outlet, buzzer, battery, batten fluorescent, automatic fire alarm device, annunciator,
The vector stencils library "Valve assembly" contains 141 symbols of pressure and flow regulators, flow direction indicators, controls, and symbols to design flow paths of control valves.
Use these valve assembly shapes to design the engineering drawings of hydraulic and pneumatic valve assemblies in fluid power systems.
"Control valves are valves used to control conditions such as flow, pressure, temperature, and liquid level by fully or partially opening or closing in response to signals received from controllers that compare a "setpoint" to a "process variable" whose value is provided by sensors that monitor changes in such conditions.
The opening or closing of control valves is usually done automatically by electrical, hydraulic or pneumatic actuators. Positioners are used to control the opening or closing of the actuator based on electric, or pneumatic signals.
A control valve consists of three main parts in which each part exist in several types and designs: Valve's actuator, Valve's positioner, Valve's body.
" [Control valves. Wikipedia]
The shapes example "" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Mechanical Engineering solution from the Engineering area of ConceptDraw Solution Park.
Valve assembly symbols
Valve assembly symbols, variable arrow, valve, two-position, ports, valve, two-position, five ports, valve, three-position, ports, valve, three-position, five ports, valve, four-position, ports, valve, four-position, five ports, two-port, flow path, two-port, closed, flow path, three-port, flow path, three-port, crossover, flow path, spring, variable spring, non-variable spring, shaft, rod, shaft, direction, rotation, rotary connection, line junction, roller, one-way trip, rod, restriction, fluid flow, pull, push, button, pneumatic, fluid flow, plunger, variable plunger, non-variable plunger, pilot-operated, pedal, treadle, over - center, manual override, manual operation, lever, latch, junction, crossing, indication, temperature, temperature control, hydraulic, fluid flow, four-port, tandem, flow path, four-port, semi-connected, flow path, four-port, open, flow path, four-port, flow path, four-port, crossover, flow path, four-port, crossed, flow path, four-port, closed, flow path, fluid energy, pneumatic, hydraulic, energy source, fluid energy, pneumatic, energy source, fluid energy, hydraulic, energy source, flow path, flexible line, five-port, flow path, five-port, crossover, flow path, five-port, closed, flow path, electric, electrical, functional element, electric rotor, electric linear, solenoid, dot, line, junction, detent, curved arrow, direction, rotation, closed path, closed port, box, flow path, arrow, flow path, direction, rectilinear motion, air exhaust port, air bleed, connection,
The vector stencils library "Hydraulic pumps and motors" contains 74 symbols of hydraulic pump vector stencils, hydraulic motor symbols for engineering drawings of fluid power and hydraulic control systems.
"Hydraulic pumps are used in hydraulic drive systems and can be hydrostatic or hydrodynamic.
Hydrostatic pumps are positive displacement pumps while hydrodynamic pumps can be fixed displacement pumps, in which the displacement (flow through the pump per rotation of the pump) cannot be adjusted, or variable displacement pumps, which have a more complicated construction that allows the displacement to be adjusted." [Hydraulic pump. Wikipedia]
"A hydraulic motor is a mechanical actuator that converts hydraulic pressure and flow into torque and angular displacement (rotation). The hydraulic motor is the rotary counterpart of the hydraulic cylinder.
Conceptually, a hydraulic motor should be interchangeable with a hydraulic pump because it performs the opposite function - much as the conceptual DC electric motor is interchangeable with a DC electrical generator. However, most hydraulic pumps cannot be used as hydraulic motors because they cannot be backdriven. Also, a hydraulic motor is usually designed for the working pressure at both sides of the motor.
Hydraulic pumps, motors, and cylinders can be combined into hydraulic drive systems. One or more hydraulic pumps, coupled to one or more hydraulic motors, constitutes a hydraulic transmission." [Hydraulic motor. Wikipedia]
The shapes example "Design elements - Hydraulic pumps and motors" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Mechanical Engineering solution from the Engineering area of ConceptDraw Solution Park.
Hydraulic pump and motor symbols
Hydraulic pump and motor symbols, variable displacement pump, variable displacement hydraulic pump, variable displacement hydraulic motor, pressure compensator, hydraulic variable displacement pump motor, hydraulic variable displacement pump, hydraulic variable displacement motor, hydraulic pump motor, hydraulic pump, hydraulic motor, floating motor, fixed displacement pump motor, fixed displacement pump, fixed displacement motor, fixed displacement hydraulic pump, fixed displacement hydraulic motor,