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继电器和接触器是控制一个或多个电路中电流流动的必要设备，通过使用与所管理电路隔离的独立控制信号来实现。这些设备根据它们的构造和预期的应用被分类为不同的子组。 传统上，继电器和接触器使用电磁铁来机械地打开或关闭一组开关触点。这种机制仍然广泛使用，允许以可控的方式中断或重定向电流。 除了传统的电机构设计外，新型继电器和接触器利用了固态技术。与电机构原理相比，这些现代设备具有明显的优势，如更快的响应时间、更低的功耗和更高的可靠性。固态继电器和接触器越来越普遍，并且在特定应用条件下备受青睐，因为它们的独特特性提供了显着的优势。 总体而言，继电器和接触器在电气控制领域发挥着至关重要的作用，提供各种选项，以满足不同的工业和商业需求。无论是基于电机构设计还是固态原理，这些设备都是电路高效而安全运行的基础，广泛应用于众多应用场合。

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AdaptersModular ConnectorsModular Connector AccessoriesModular Connector AdaptersModular Connector JacksModular Connector Jacks With MagneticsModular Connector Plug HousingsModular Connector PlugsModular Connector Wiring BlocksModular Connector Wiring Blocks AccessoriesPhotovoltaic (Solar Panel) ConnectorsPhotovoltaic (Solar Panel) Connector AccessoriesPhotovoltaic (Solar Panel) Connector AssembliesPhotovoltaic (Solar Panel) Connector ContactsPluggable ConnectorsPluggable Connector AccessoriesPluggable Connector AssembliesSockets for ICs, TransistorsIC SocketsSocket AccessoriesSocket AdaptersSolid State Lighting ConnectorsSolid State Lighting Connector AccessoriesSolid State Lighting Connector AssembliesSolid State Lighting Connector ContactsTerminal BlocksBarrier BlocksDin Rail, ChannelHeaders, Plugs and SocketsInterface ModulesPanel MountPower DistributionSpecializedTerminal Block AccessoriesTerminal Block AdaptersTerminal Block ContactsWire to BoardTerminalsBarrel, Bullet ConnectorsFoil ConnectorsHousings, BootsKnife ConnectorsMagnetic Wire ConnectorsPC Pin Receptacles, Socket ConnectorsPC Pin, Single Post ConnectorsQuick Connects, Quick Disconnect ConnectorsRectangular ConnectorsRing ConnectorsScrew ConnectorsSolder Lug ConnectorsSpade ConnectorsSpecialized ConnectorsTerminal AccessoriesTerminal AdaptersTurret ConnectorsWire Pin ConnectorsWire Splice ConnectorsWire to Board ConnectorsUSB, DVI, HDMI ConnectorsUSB, DVI, HDMI Connector AccessoriesUSB, DVI, HDMI Connector AdaptersUSB, DVI, HDMI Connector AssembliesCrystals, Oscillators, ResonatorsCrystal, Oscillator, Resonator AccessoriesCrystalsOscillatorsPin Configurable/Selectable OscillatorsProgrammable OscillatorsResonatorsStand Alone ProgrammersVCOs (Voltage Controlled Oscillators)Development Boards, Kits, ProgrammersAccessoriesEvaluation BoardsAnalog to Digital Converters (ADCs) Evaluation BoardsAudio Amplifier Evaluation BoardsDC/DC & AC/DC (Off-Line) SMPS Evaluation BoardsDigital to Analog Converters (DACs) Evaluation BoardsEmbedded Complex Logic (FPGA, CPLD) Evaluation BoardsEmbedded MCU, DSP Evaluation BoardsEvaluation and Demonstration Boards and KitsExpansion Boards, Daughter CardsLED Driver Evaluation BoardsLinear Voltage Regulator Evaluation BoardsOp Amp Evaluation BoardsRF Evaluation and Development Kits, BoardsRFID Evaluation and Development Kits, BoardsSensor Evaluation BoardsProgrammers, Emulators, and DebuggersProgramming Adapters, SocketsSoftware, ServicesDiscrete Semiconductor ProductsCurrent Regulation - 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Remote ReceiverPhotodiodesPhotoelectric, IndustrialPhotointerrupters - Slot Type - Logic OutputPhotointerrupters - Slot Type - Transistor OutputPhotonics - Counters, Detectors, SPCM (Single Photon Counting Module)PhototransistorsReflective - Analog OutputReflective - Logic OutputParticle, Dust SensorsPosition SensorsAngle, Linear Position MeasuringPressure Sensors, TransducersPressure Sensors, Transducers - IndustrialProximity SensorsProximity Sensors - IndustrialProximity/Occupancy Sensors Finished UnitsSensor Cable AccessoriesSensor Cable AssembliesSensor Interface Junction BlocksSensor, Transducer AccessoriesSensor, Transducer AmplifiersShock SensorsSolar CellsSpecialized SensorsStrain GaugesTemperature SensorsAnalog and Digital OutputAnalog and Digital Output - IndustrialNTC ThermistorsPTC ThermistorsRTD (Resistance Temperature Detector)Thermocouples, Temperature ProbesThermostats - MechanicalThermostats - Mechanical - IndustrialThermostats - Solid StateTouch SensorsUltrasonic Receivers, TransmittersUltrasonic Receivers, Transmitters - 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SwitchesAccessoriesAccessories - Boots, SealsAccessories - CapsCable Pull SwitchesConfigurable Switch ComponentsConfigurable Switch Components - BodyConfigurable Switch Components - Contact BlockConfigurable Switch Components - Illumination SourceConfigurable Switch Components - LensDIP SwitchesDisconnect Switch ComponentsEmergency Stop (E-Stop) SwitchesInterlock SwitchesKeylock SwitchesKeypad SwitchesLimit SwitchesMagnetic, Reed SwitchesNavigation Switches, JoystickProgrammable Display SwitchesPushbutton SwitchesPushbutton Switches - Hall EffectRocker SwitchesRotary SwitchesSelector SwitchesSlide SwitchesTactile SwitchesThumbwheel SwitchesToggle SwitchesTransformersAudio TransformersCurrent Sense TransformersIsolation Transformers and Autotransformers, Step Up, Step DownPower TransformersPulse TransformersSpecialty TransformersSwitching Converter, SMPS TransformersTransformers AccessoriesUncategorizedUnclassified
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