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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,
Used Solutions
The vector stencils library "Alarm and access control" contains 80 shapes of digital proximity equipment, locking hardware, and access control equipment. Use it for drawing security and access plans of intrusion systems, time and attendance systems, and card and code access control security systems with ConceptDraw PRO software extended with the Security and Access Plans solution from the Building Plans area of ConceptDraw Solution Park.
Card reader with keypad
Card reader with keypad, card reader, keypad,
Biometric access
Biometric access, biometric access reader, biometric access,
Card access
Card access, card access reader, card access,
Keypad device
Keypad device, keypad device,
Keypad
Keypad, keypad,
Security keypad
Security keypad, security keypad,
Horn / siren
Horn / siren, horn, siren,
Weatherproof horn / siren
Weatherproof horn / siren, weatherproof, horn, siren,
Horn / strobe
Horn / strobe, horn, strobe,
Strobe
Strobe, strobe,
Card reader with time
Card reader with time, card reader, time, attendance,
Turnstile
Turnstile, turnstile,
Revolving door
Revolving door, revolving door,
Traffic arm
Traffic arm, traffic arm,
Vehicle loop detector
Vehicle loop detector, vehicle loop detector,
Smoke detector
Smoke detector, smoke detector,
Heat detector
Heat detector, heat detector,
Gas detector
Gas detector, gas detector,
Carbon monoxide detector
Carbon monoxide detector, carbon monoxide detector, CO detector,
Flood sensor
Flood sensor, flood sensor,
Electronic lock
Electronic lock, electronic lock,
Exit device
Exit device, exit device,
Pushbutton
Pushbutton, pushbutton,
Panic button
Panic button, panic button,
Camera with keypad
Camera with keypad, camera, keypad,
Camera
Camera, camera,
Camera with intercom
Camera with intercom, camera, intercom,
Camera with card reader
Camera with card reader, camera, card reader,
Security window screen
Security window screen, security window screen,
Window contact sensor
Window contact sensor, window contact sensor,
Vibration / shock sensor
Vibration / shock sensor, vibration sensor, shock sensor,
Screen alarm
Screen alarm, screen alarm,
Glass break detector
Glass break detector, glass break detector,
Door contact sensor
Door contact sensor, door contact sensor,
Floor mat
Floor mat, floor mat,
Driveway sensor
Driveway sensor, driveway sensor,
Overhead door contact sensor
Overhead door contact sensor, overhead door contact sensor, door contact sensor,
Wall motion sensor
Wall motion sensor, wall motion sensor, motion sensor,
Floor motion sensor
Floor motion sensor, floor motion sensor, motion sensor,
Security control unit
Security control unit, security control unit,
Security door contact
Security door contact, security door contact,
Security control panel
Security control panel, security control panel,
Security card reader
Security card reader, security card reader,
Motion detector
Motion detector, motion detector,
Master intercom
Master intercom, master intercom,
Magnetic lock, security door alarm
Magnetic lock, security door alarm, magnetic lock, security door alarm,
Intercom unit
Intercom unit, intercom unit,
Electric door strike
Electric door strike, electric door strike,
Electric door opener
Electric door opener, electric door opener,
Door buzzer
Door buzzer, door buzzer,
Door chime
Door chime, door chime,
Doorbell
Doorbell, doorbell,
Volumetric capacity detector
Volumetric capacity detector, volumetric capacity detector,
Siren
Siren, siren,
Receiver
Receiver, receiver,
PIR field of view
PIR field of view, PIR field of view,
Mains supply power source
Mains supply power source, mains supply power source,
Infrared detector
Infrared detector, infrared detector,
Heat detector
Heat detector, heat detector,
Foil on glass detector
Foil on glass detector, foil on glass detector,
Dial-up remote equipment
Dial-up remote equipment, dial-up remote equipment,
Beam fence disturbance
Beam fence disturbance, beam fence disturbance,
User control keyswitch
User control keyswitch, user control keyswitch,
User control digital keypad
User control digital keypad, user control digital keypad,
Ultrasonic transceiver
Ultrasonic transceiver, ultrasonic transceiver,
Transformer
Transformer, transformer,
Space detection device
Space detection device, space detection device,
Slave tape dialer
Slave tape dialer, slave tape dialer,
Slave digital communicator
Slave digital communicator, slave digital communicator,
Remote zone annunciator
Remote zone annunciator, remote zone annunciator,
Passive infrared
Passive infrared, passive infrared,
Microwave transceiver
Microwave transceiver, microwave transceiver,
Line cut monitor
Line cut monitor, line cut monitor,
Infrasonic
Infrasonic, infrasonic,
Foil
Foil, foil,
Emergency power / battery
Emergency power / battery, emergency power, emergency battery,
Dual technology device
Dual technology device, dual technology device,
Control unit
Control unit, control unit,
Contact switch surface
Contact switch surface, contact switch surface,
Contact switch flush
Contact switch flush, contact switch flush,
Used Solutions
The vector stencils library Alarm and access control contains 80 symbols of digital proximity equipment, locking hardware, and access control equipment.
"An alarm device or system of alarm devices gives an audible, visual or other form of alarm signal about a problem or condition. Alarm devices are often outfitted with a siren." [Alarm device. Wikipedia]
"An access control point, which can be a door, turnstile, parking gate, elevator, or other physical barrier, where granting access can be electronically controlled. Typically, the access point is a door. An electronic access control door can contain several elements. At its most basic, there is a stand-alone electric lock. The lock is unlocked by an operator with a switch. To automate this, operator intervention is replaced by a reader. The reader could be a keypad where a code is entered, it could be a card reader, or it could be a biometric reader. Readers do not usually make an access decision, but send a card number to an access control panel that verifies the number against an access list. To monitor the door position a magnetic door switch can be used. In concept, the door switch is not unlike those on refrigerators or car doors. Generally only entry is controlled, and exit is uncontrolled. In cases where exit is also controlled, a second reader is used on the opposite side of the door. In cases where exit is not controlled, free exit, a device called a request-to-exit (REX) is used. Request-to-exit devices can be a push-button or a motion detector. When the button is pushed, or the motion detector detects motion at the door, the door alarm is temporarily ignored while the door is opened. Exiting a door without having to electrically unlock the door is called mechanical free egress. This is an important safety feature. In cases where the lock must be electrically unlocked on exit, the request-to-exit device also unlocks the door." [Access control. Wikipedia]
Use the design elements library Alarm and access control for drawing layout floor plans, blueprints, and wiring diagrams of intrusion systems, time and attendance systems, card and code access control security systems, internal and external security control systems using the ConceptDraw PRO diagramming and vector drawing software.
The shapes library Alarm and access control is included in the Security and Access Plans solution from the Building Plans area of ConceptDraw Solution Park.
Alarm and access control symbols
Alarm and access control symbols, window contact sensor, weatherproof, horn, siren, wall motion sensor, motion sensor, volumetric capacity detector, vibration sensor, shock sensor, vehicle loop detector, user control keyswitch, user control digital keypad, ultrasonic transceiver, turnstile, transformer, traffic arm, strobe, space detection device, smoke detector, slave tape dialer, slave digital communicator, siren, security window screen, security keypad, security door contact, security control unit, security control panel, security card reader, screen alarm, revolving door, remote zone annunciator, receiver, pushbutton, passive infrared, panic button, overhead door contact sensor, door contact sensor, motion detector, microwave transceiver, master intercom, mains supply power source, magnetic lock, security door alarm, line cut monitor, keypad device, keypad, intercom unit, infrasonic, infrared detector, horn, strobe, horn, siren, heat detector, glass break detector, gas detector, foil on glass detector, foil, floor motion sensor, motion sensor, floor mat, flood sensor, exit device, emergency power, emergency battery, electronic lock, electric door strike, electric door opener, dual technology device, driveway sensor, doorbell, door contact sensor, door chime, door buzzer, dial-up remote equipment, control unit, contact switch surface, contact switch flush, card reader, time, attendance, card reader, keypad, card access reader, card access, carbon monoxide detector, CO detector, camera, keypad, camera, intercom, camera, card reader, camera, biometric access reader, biometric access, beam fence disturbance, PIR field of view,
Used Solutions