Best Speaker Protection Relay Circuit

Youngneer 5v Relay Board Raspberry Arduino Relay Module 1 Channel Opto-Isolated High or Low Level Trigger

  • 【1 Channel Relay Module】- This Relay Board provides a single relay that can be controlled by any 5V digital output from your microcontroller..
  • 【Main Specification】- Peak Load of NO Connector: AC125~250V/10A, DC28~30V/10A.
  • 【Adopted SMD Optocoupler Isolation】- The isolation circuit prevent damages to I / O port by relay switch current..
  • 【Wide Application】- These 5v relay board works well with Arduino/ ARM /PIC /AVR /MCU/Raspberry/CNC machine/ PS4 etc..
  • 【Humanization Design On Interfaces】- All interfaces can be directly wired out through the terminals..
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Aoicrie 5Pcs DC 12V 1 Channel Relay Module Board Shield with Optocoupler Isolation Support High or Low Level Compatible Development Board Trigger

  • This Relay Board Maximum load: AC 250V/10A, DC 30V/10A With power and relay action indicator.each relay has normally open and normally closed contact. Can be selected by jumper relay and TTL or ground..
  • Main Specification Peak Load of NO Connector: AC 250V/10A, DC 30V/10A.
  • These Relay Board use photocoupler isolation that has strong driving ability and stable performance.The isolation circuit prevent damages to I / O port by relay switch current.The module has a jumper so you can set rather the unit state changes with high or low signal. Has screw terminals for relay (NC,C,NO) and for input.
  • Using SMD optocoupler isolation, strong driving capability, stable performance.Fault tolerant design, even if the control line is broken, the relay will not operate.
  • And interface design humanized, all the interface can be directly connected through the terminal lead, so convenient..
  • Wide Application These 12V relay board works well with for ARM /PIC /AVR /MCU/Raspberry/CNC machine etc..
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NEW TeSys LRD thermal overload relays LR-D32 LRD32 23-32A Class 10A

  • Working Range: Suitable for using in power system with rated isolation voltage up to 690V, circuit of 50-60hz.
  • Longer Service: Can be used as overload protection of your long term or indirect long term service motor.
  • Protection Function: Used for protecting the phase break when the electric motor is overload.
  • Temperature Compension: The relay has different mechanism and temperature compensation.
  • Multifunctions: With phase break protection, manual and automatic reset, temperature compensation, trip indication, test button and stop button.
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Tuimiyisou Relay Module Board Switch Motor Time Adjustable Delay Relay DC 5V 6V 9V 12V Intelligent Controller Industrial Control Components-Module

  • This Relay Delay Switch is easy to use when you are familar with the operation.
  • With the Relay Module Controller, your life will be more intelligent and convenient.
  • Relay Board has high precision, stable and reliable performance for your daily use and satisfaction.
  • There are many voltage and time range of the Relay Module for your choice, both "on" time and "off" time are adjustable.
  • Time Adjustable Delay Relay can be widely used on timer operating equipment, machine repetitive test circuit, fish tank intermittent pump, etc.
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STINGER - 4-Channel100 AMP Solid-State Relay

  • One 40A and three 20A outputs, for a combined total of 100A continuous..
  • Each output has a thermal overload, and short circuit protection along with LED status indicators for the Thermal/Overload, Active/Inactive status..
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SSR-100DD Solid State Relay DC to DC (Input 3-32V DC Output 5-60V DC) with Heat Sink, 100A

  • Model: SSR-100DD, single phase Solid State Relay 100A DC to DC control, CE Compliant to EN60950-1.
  • Input voltage 3-32V DC, Load voltage 5-60V DC, Max load current 100 Amp.
  • Rugged epoxy encapsulation construction, high isolation over than 50MΩ(500VDC), high dielectric over than 2.5KV, output snubber circuit protection.
  • No EMI/EFI & Low surge by Zero Cross Trigger method, specially suited to control sensitive, capacitive and Non-saturated inductive loads.
  • SSR switches use semiconductor component acts as a switch for the relay, no moving parts inside, no mechanical wear, no action noise, no mechanical failure, and high reliability.
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Siemens 3UG4631-1AA30 Monitoring Relay, Single Phase Voltage Monitoring, Screw Terminal, 1 CO Contacts, 0.1-60VAC/DC Measuring Range, 0.1-30V Hysteresis, 0-20s Delay Time, 24VAC/DC Auxiliary Voltage

  • Features: Undervoltage protector integrates three-phase voltage protector, chronograph and counter in one.
  • Multifunction: The protection relay has protection functions such as overvoltage, undervoltage, phase loss, phase sequence, three-phase voltage unbalance, etc.
  • Practical functions: The voltage monitoring relay has functions such as start-up delay and output test. 2 rest module optional, manual and automatic.
  • Specification: Monitoring Circuit: L1, L2, L3.
  • LCD Display: LCD data display, easy to read, no external power supply required.
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SSR-25DD Solid State Relay DC to DC (Input 3-32V DC Output 5-60V DC) with Heat Sink, 25A

  • Model: SSR-25DD, single phase Solid State Relay 25A DC to DC control, UL Approved, CE Compliant to EN60950-1.
  • Input voltage 3-32V DC, Load voltage 5-60V DC, Max load current 25 Amp.
  • Rugged epoxy encapsulation construction, high isolation over than 50MΩ(500VDC), high dielectric over than 2.5KV, output snubber circuit protection.
  • No EMI/EFI & Low surge by Zero Cross Trigger method, specially suited to control sensitive, capacitive and Non-saturated inductive loads.
  • SSR switches use semiconductor component acts as a switch for the relay, no moving parts inside, no mechanical wear, no action noise, no mechanical failure, and high reliability.
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Retekess T-AC03 Security Access Control Keypad,RFID Keypad,Door Access Control,Stand-Alone Keypad,2000 Users,Wiegand 26-bit,Support Proximity RFID Card

  • Access control keypad is sturdy rugged keypad.
  • with zinc alloy electroplated technology.
  • The circuit board is completely encapsulated in epoxy to be weatherproof.
  • keyboard is waterproof so you can use it outdoor or indoor.
  • the keys light will stay on in dark places or at night.
  • Red light stands for enter into programming mode.
  • Yellow light for in the programming mode.
  • Green light for operation successful mode.
  • Wiegand access control keypad can be as a standalone reader or keypad.
  • so that you could connect this to a powered device without the use of some computing intermediate.
  • you can set the public password or private password and the password can be changed which is more secure and personalized.
  • You can use the access control keypad to add and delete 2000 user information.
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Painless Performance 70207 Weatherproof Cirkit Boss Auxiliary Fuse Block, 7-Circuits (3 Constant/4 Ignition)

  • Safe way to add electrical accessories to any vehicle.
  • First circuit isolator system available with both constant and ignition hot circuits.
  • Provides three 20-amp constant hot and four ignition hot circuits with a maximum total amperage handling of 40 Amps.
  • Includes: Weatherproof 40-amp SPST relay, weatherproof 50-amp circuit breaker, weatherproof relay base/fuse block with harness, weatherproof crimp-on heat-shrinkable terminals, weatherproof fuse block cover and mounting hardware.
  • Protects your OEM and is easy to install.
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