5V 8 Channel High-Level Solid State Relay Module

The 5V 8 Channel High Level Solid State Relay Module is designed for controlling multiple devices simultaneously. With high level trigger input and solid state reliability, this relay module is ideal for automation, home control, and industrial applications requiring efficient and noise-free switching.

Specifications

• Product Type: Solid State Relay (SSR) Module
• Channels: 8 (eight)
• Input Voltage: 5V DC
• Trigger Type: High-Level Trigger
• Relay Type: Solid State (SSR)
• Control Signal Level: High-level trigger (typically greater than 3.3V)
• Isolation: Optocoupler Isolation for each channel
• Input/Control Current: 15-20mA per channel (when active)

Relay Specifications:

• Operating Voltage: 5V DC (control voltage for the relay input)
• Operating Current: 160mA-200mA (for all 8 channels active)
• Switching Voltage (Load Voltage):
  • AC Version: 240V AC
  • DC Version: 24V-60V DC (varies with version)
• Switching Current (Load Current):
  • AC Version: 2A at 240V AC per channel
  • DC Version: 2A at 24V-60V DC per channel
• Response Time: ≤10ms for switching

Input Specifications:

• Trigger Voltage: High-level trigger (logic 1 for activation)
  • High-level trigger typically means input voltage ≥ 3.3V to 5V
  • Low level: ≤ 1.0V
• Control Pin Compatibility:
  • Compatible with 3.3V and 5V logic systems (Arduino, Raspberry Pi, PLCs, etc.)
• Optocoupler Isolation: Each relay channel has optocoupler isolation for protection against noise and surges

Electrical Characteristics:

• Load Voltage (AC version): 75V to 240V AC (some versions go up to 380V)
• Load Voltage (DC version): 5V to 60V DC (depends on the specific model version)
• Current Capacity (per channel): 2A continuous
• On-state Voltage Drop: ≤1.5V (when the relay is closed)
• Off-state Leakage Current: ≤1mA (when the relay is open)

Environmental Specifications:

• Operating Temperature Range: -30°C to +70°C
• Storage Temperature Range: -40°C to +85°C
• Humidity: 20% to 85% relative humidity (non-condensing)

Mechanical and Mounting Specifications:

• PCB Dimensions: 138mm x 56mm x 19mm (approximate)
• Mounting Holes: Four mounting holes with 3mm diameter (one in each corner)
• Mounting Type: Can be mounted via screws or placed in enclosures
• Weight: Approximately 100g-120g

Protection Features:

• Over-current Protection: Each relay can protect against current overload up to 2A per channel
• Optocoupler Isolation: Provides electrical isolation between the control input and the output load
• Over-voltage Protection: Protection against high input voltages or surges
• Reverse Polarity Protection: Prevents damage if input polarity is reversed

Application and Use Cases:

• Suitable for:
  • Controlling AC loads such as lamps, motors, heaters, and household appliances
  • DC loads like fans, DC motors, solenoids, or DC lighting
  • Industrial and home automation
  • Controlling power in IoT systems and DIY projects
  • Microcontroller (e.g., Arduino, Raspberry Pi, ESP32) and PLC-based projects
• Advantages of Mechanical Relays:
  • Silent operation (no mechanical clicking sound)
  • Longer lifespan (no mechanical wear)
  • Fast switching speed
  • Higher reliability for applications requiring frequent switching

Input/Output Interface:

• Input Pins:
  • 8 signal input pins for each relay (IN1, IN2, IN3… IN8)
  • Separate ground (GND) and VCC for control input
• Output Terminals:
  • Each relay has three terminals: NO (Normally Open), COM (Common), and NC (Normally Closed)

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5V 8 Channel High Level Solid State Relay Module
darazsales

5V 6 Channel Low Level with light coupling Relay Module

Specifications

• Product Name: 5V 6-Channel Low-Level Trigger Relay Module with Optocoupler
• Number of Channels: 6
• Trigger Type: Low-Level Trigger (activates when the input pin is pulled low)
• Optocoupler Isolation: Yes (light coupling)
• Operating Voltage: 5V DC

Relay Specifications:

• Relay Model: SRD-05VDC-SL-C or equivalent
• Operating Voltage (Coil Voltage): 5V DC
• Rated Current per Channel (Relay): 70mA (per relay coil)
• Relay Contact Rating:
  • Max Switching Voltage: 250V AC or 30V DC
  • Max Switching Current: 10A at 250V AC, 10A at 30V DC
  • Min Switching Voltage: 5V DC
  • Relay Type: Normally Open (NO) and Normally Closed (NC)
• Relay Life: 100,000 mechanical operations (typical)
• Contact Material: Silver Alloy

Triggering Logic:

• Trigger Mode: Low-level trigger (the relay activates when the input signal is pulled low)
• Input Control Voltage:
  • Logic High: 3.5-5V DC (relay off)
  • Logic Low: 0-1.5V DC (relay on)

Optocoupler Isolation:

• Optocoupler Type: PC817 or equivalent
• Optocoupler Function: Electrically isolates the input signal (from the control board) and the relay circuit, improving noise immunity and protecting the control circuit from high voltage spikes.

Input and Output Interface:

• Control Pin Inputs:
  • IN1, IN2, IN3, IN4, IN5, IN6 (control the respective relays)
• Power Input Pins:
  • VCC (5V DC input)
  • GND (Ground)
• Relay Outputs (Screw Terminals):
  • Each relay channel has three terminals:
    • COM (Common): Common connection for the switching circuit
    • NO (Normally Open): Normally disconnected, closes when the relay is triggered
    • NC (Normally Closed): Normally connected, opens when the relay is triggered

Electrical Characteristics:

• Input Voltage: 5V DC
• Current Consumption (Module):
  • Standby Current: <10mA (when relays are off)
  • Operating Current: 70-75mA per relay channel activated
• Power Consumption: Approximately 450mW per relay when activated
• Maximum Load: 10A/250VAC, 10A/30VDC (resistive load)

Indicator LEDs:

• Power LED: Red LED to indicate module power status
• Relay Indicator LEDs: Each channel has an individual LED (green) that lights up when the respective relay is triggered (active low).

Environmental Specifications:

• Operating Temperature: -40°C to +85°C
• Humidity: 20-85% RH (non-condensing)
• Storage Temperature: -40°C to +125°C

Dimensions and Physical Properties:

• Board Dimensions: Approximately 90mm x 40mm x 20mm (L x W x H)
• Mounting Holes: 3mm diameter (for easy installation)
• Weight: Approx. 70g

Applications:

• Home Automation: Control of household appliances
• Industrial Automation: Switching of industrial devices
• IoT Applications: Interfacing with microcontrollers (e.g., Arduino, Raspberry Pi)
• Robotics and DIY Projects: Control of motors, lights, fans, and other components

Safety and Protection:

• Electrical Isolation: Optocouplers provide electrical isolation between the control side (microcontroller) and the relay side.
• Flyback Diode Protection: Protection for the relay coil from voltage spikes when switching.
• Durability: Suitable for long-term use with resistive and inductive loads.

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5V 6 Channel Low Level with light coupling Relay Module
darazsales

SSR Solid State Relay Voltage Regulator 24-380V AC Output with Potentiometer

The SSR Solid State Relay Voltage Regulator with 24-380V AC output and potentiometer provides reliable and precise voltage control for industrial applications. This solid state relay ensures efficient switching and long-lasting performance, ideal for motor control, heating elements, and more

Specifications:

• Type: SSR Solid-State Relay Voltage Regulator with Potentiometer
• Output Voltage Range: 24V AC to 380V AC
• Input Voltage Range (Control Signal): 3V DC to 32V DC
• Output Type: AC (Alternating Current)
• Control Mode: Phase control or Zero-crossing trigger (depending on model)
• Application: Designed for AC voltage regulation and power control for resistive loads such as heaters, lamps, and small motors.

Electrical Specifications:

• Input Voltage: 3-32V DC (input signal to control the relay)
• Input Current: 5-20mA (depending on the applied control voltage)
• Output Voltage: 24-380V AC
• Rated Current: 10A, 25A, 40A, or 60A depending on the specific model
• Surge Current: Up to 10 times the rated current for short durations (for overload conditions)
• Output Voltage Drop: Less than 1.5V (typically 1V) when the relay is on
• Potentiometer: Manually adjustable, typically between 500Ω to 1kΩ, to regulate the output voltage.

Control and Regulation:

• Control Type: Phase angle regulation or continuous AC voltage adjustment using a potentiometer. The potentiometer allows smooth output voltage control from 0 to maximum within the specified range.
• Regulation Method: By adjusting the firing angle of the SSR, the output power is controlled, which adjusts the voltage output supplied to the load.
• Trigger Method: Zero-crossing (for resistive loads) or random phase control (for inductive loads) depending on the model.
• Response Time: Zero-crossing triggering ensures the load is switched on at the beginning of the AC cycle, reducing electrical noise and transients.
• LED Indicator: Displays the operating state of the SSR (on/off status).

Protection:

• Overcurrent Protection: Limited internal protection, typically requires external circuit breakers or fuses for safety.
• Overvoltage Protection: External devices are recommended for safeguarding against input voltage surges.
• Thermal Protection: SSRs dissipate heat during operation and may require an external heat sink or cooling fan to prevent overheating under high loads.

Mechanical Specifications:

• Mounting Type: Panel-mounted with screws or DIN rail options (depending on the model).
• Material: High-quality plastic and metal housing for durability and insulation.
• Potentiometer Control: Typically mounted on the front face of the relay, adjustable by the user to fine-tune the output voltage.
• Terminal Type: Screw terminals for secure connections of input/output wiring.

Environmental Specifications:

• Operating Temperature: -30°C to +80°C
• Storage Temperature: -40°C to +100°C
• Humidity: 10% to 90% (non-condensing)
• Cooling: Passive air cooling or heat sink is required for higher current models (20A and above).

Application Areas:

• Temperature control for ovens, heaters, and kilns
• Lighting dimming applications
• Motor speed control for small AC motors
• Power regulation in industrial equipment

Safety and Compliance:

• Certifications: CE, RoHS, UL (depending on model)
• Insulation Resistance: 1000 MΩ at 500V DC (minimum)
• Dielectric Strength: 2500V AC between input and output terminals

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SSR Solid State Relay Voltage Regulator 24-380V
darazsales

DC12V 16 Channel Low Level with Light Coupling Power Supply Relay Module

The DC12V 16 Channel Low Level Relay Module with Light Coupling provides reliable control of up to 16 devices with low interference. Featuring light coupling isolation and low-level trigger inputs, this module is perfect for automation projects and industrial control applications.

Specifications

1. Power Supply:

• Operating Voltage: DC 12V
• Quiescent Current: 20mA
• Operating Current: ~300mA

2. Relay Specifications:

• Relay Type: 16-channel
• Trigger: Low-Level Trigger
  • A low signal (0V) activates the relay.
• Contact Capacity: 10A 250VAC or 10A 30VDC
• Relay Model: SRD-12VDC-SL-C
• Relay Life: 100,000 operations (mechanical)

3. Control Signal:

• Input Signal: Low-level trigger (active low)
• Signal Voltage: 0V (active) and 3-5V (inactive)
• Compatible Control Signals: 5V, 3.3V TTL logic (Arduino, Raspberry Pi, ESP8266, etc.)

4. Protection and Isolation:

• Optocoupler Isolation: Ensures electrical isolation between the high-power relay circuit and the low-power control circuit, protecting sensitive control devices.
• Flyback Diodes: Protection against voltage spikes during switching operations.

5. Pin Definitions:

• IN1 – IN16: Control inputs for each relay (Low level triggers the relay).
• VCC: 12V power input.
• GND: Ground.
• JD-VCC: Jumper between VCC and JD-VCC to provide the same power to the relays and control logic.

6. Board Layout:

• LED Indicators: Each relay channel has a corresponding LED that lights up when the relay is activated, offering visual feedback.
• Dimensions:
  • Board Size: Approx. 180mm x 90mm (varies slightly by manufacturer)
  • Mounting Holes: Standard hole arrangement for easy mounting

7. Temperature and Environment:

• Operating Temperature: -25°C to +85°C
• Humidity: 5% to 85% (non-condensing)

8. Application Examples:

• Home automation
• Industrial automation
• Control systems (AC/DC loads, lights, fans, motors)
• Microcontroller-based projects (Arduino, Raspberry Pi)

9. Additional Features:

• Screw Terminals: Provides easy connections for power and load.
• Jumper Settings: Option to separate the control power from the relay power by removing the JD-VCC jumper (useful in certain setups).

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DC12V 16 Channel Low Level Relay Module with Light Coupling
darazsales

IEC255 MY2N-J DC12V 8Pin DPDT Electromagnetic Power Relay with Socket

The IEC255 MY2N-J DC12V 8Pin DPDT Electromagnetic Power Relay with Socket offers high-performance switching control with dual-pole, dual-throw (DPDT) functionality. Suitable for industrial applications, this relay ensures efficient and reliable power switching, complete with a sturdy socket for easy installation.

Specifications

• Model Number: MY2N-J DC12V
• Standards Compliance: IEC 255, JIS C 5442
• Coil Voltage: 12V DC
• Type: DPDT (Double Pole Double Throw)
• Contact Configuration: 8-Pin (octal base)
• Contact Rating:
  • Resistive load: 5A at 250V AC, 5A at 30V DC
  • Inductive load: 2A at 250V AC, 2A at 30V DC (L/R = 7 ms)
• Operation Mode: Electromagnetic relay
• Dielectric Strength:
  • Between coil and contacts: 1500V AC for 1 minute
  • Between contacts of different polarity: 1000V AC for 1 minute
  • Between contacts of the same polarity: 1000V AC for 1 minute
• Insulation Resistance: 100 MΩ min. at 500V DC
• Electrical Life: 100,000 operations at rated load (min.)
• Mechanical Life: 10,000,000 operations (min.)

2. Coil Specifications:

• Rated Voltage: 12V DC
• Coil Resistance: Approximately 160Ω
• Operating Voltage: 75% of rated voltage (maximum)
• Drop-out Voltage: 10% of rated voltage (minimum)
• Power Consumption: Approximately 0.9 W
• Coil Time:
  • Operate time: 20 ms max.
  • Release time: 20 ms max.

3. Contact Specifications:

• Contact Material: Silver alloy
• Max Switching Voltage: 250V AC, 30V DC
• Max Switching Current: 5A
• Contact Resistance: 50 mΩ max. (initial)

4. Environmental Ratings:

• Ambient Temperature:
  • Operating: -40°C to +70°C
  • Storage: -40°C to +85°C
• Humidity: 35% to 85% RH
• Vibration Resistance:
  • Operating: 10 to 55 Hz, 1.0 mm double amplitude
  • Damage: 10 to 55 Hz, 1.5 mm double amplitude
• Shock Resistance:
  • Operating: 100 m/s² (approx. 10G)
  • Damage: 1000 m/s² (approx. 100G)

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IEC255 MY2N-J DC12V 8Pin DPDT Electromagnetic Power Relay
darazsales

HF 41F 5V/12V/24V Slim DIN Rail Relay Module

Specifications:

• Model: HF41F Slim DIN Rail Relay Module
• Type: Electromagnetic relay module for general-purpose switching and control applications
• Mounting Type: DIN rail mount (35mm DIN rail)
• Contact Form: SPDT (Single Pole Double Throw) or DPDT (Double Pole Double Throw), depending on the model
• Available Coil Voltages:
  • 5V DC
  • 12V DC
  • 24V DC
• Relay Type: Electromagnetic relay, suitable for switching AC or DC loads

Relay Contact Specifications:

• Contact Configuration: 1 Form C (SPDT) or 2 Form C (DPDT), depending on variant
• Contact Material: Silver alloy (AgNi) for high conductivity and durability
• Contact Rating:
  • Resistive Load (AC):
    • 10A at 250V AC for SPDT version
    • 5A at 250V AC for DPDT version
  • Resistive Load (DC):
    • 10A at 30V DC for SPDT version
    • 5A at 30V DC for the DPDT version
  • Inductive Load: Lower ratings based on the load type (AC15: 3A at 230V AC; DC13: 2A at 30V DC)
• Max Switching Voltage:
  • 250V AC or 30V DC
• Max Switching Current:
  • 10A (SPDT) or 5A (DPDT)
• Max Switching Power:
  • AC Load: 2500VA (SPDT), 1250VA (DPDT)
  • DC Load: 300W (SPDT), 150W (DPDT)
• Min Switching Power: 100mW (5V DC, 10mA)

Coil Specifications:

• Coil Voltage Options:
  • 5V DC
  • 12V DC
  • 24V DC
• Coil Power Consumption:
  • Typically 400mW to 500mW depending on the voltage version
• Coil Resistance:
  • 5V DC: ~62.5 ohms
  • 12V DC: ~360 ohms
  • 24V DC: ~1440 ohms
• Operate Time: ≤ 10ms
• Release Time: ≤ 5ms
• Insulation Resistance: ≥ 100MΩ at 500V DC (between coil and contacts)

Electrical Characteristics:

• Dielectric Strength:
  • Between coil and contacts: 4000V AC, 1 minute
  • Between open contacts: 1000V AC, 1 minute
• Surge Withstand Voltage: Up to 10kV between coil and contacts
• Contact Resistance: ≤ 100mΩ (initial value)
• Insulation Resistance: 1000MΩ (at 500V DC, between open contacts)

Mechanical and Environmental Specifications:

• Relay Life Expectancy:
  • Electrical Life:
    • 100,000 operations at rated load (AC and DC resistive)
  • Mechanical Life:
    • 10 million operations (no load)
• Operating Temperature: -40°C to +85°C
• Storage Temperature: -40°C to +85°C
• Operating Humidity: 5% to 85% RH (non-condensing)
• Vibration Resistance:
  • 10 to 55Hz, amplitude 1.5mm (double amplitude)
• Shock Resistance:
  • 10G (functional) and 100G (destructive)

Physical Specifications:

• Dimensions:
  • Height: 81.6 mm
  • Width: 6.2 mm (very slim, space-saving design)
  • Depth: 71 mm
• Weight: Approx. 35g
• Case Material: UL 94V-0 rated flame-retardant plastic (durable and heat-resistant)
• DIN Rail Compatibility: 35mm DIN rail (standard for industrial applications)
• Terminals: Screw terminals (typically for 24 to 14 AWG wire size)
• LED Indicator:
  • Integrated LED for coil status indication (energized or de-energized)
• Test Button:
  • Manual test button for relay operation testing without applying a control signal
• Mounting Orientation: Vertical or horizontal on DIN rail (flexible installation)

Protection and Safety Features:

• Flyback Diode: Built-in diode protection for DC coil models to suppress back electromotive force (EMF) using the relay is de-energized
• Overvoltage Protection: Protects relay from voltage spikes
• Polarity Protection: Reverse polarity protection on coil input terminals
• EMC Immunity:
  • High immunity to electromagnetic interference (EMI) and radio frequency interference (RFI)
  • Meets EN standards for electromagnetic compatibility

Certifications and Compliance:

• Certifications:
  • CE Mark (European Conformity)
  • UL Listed (Underwriters Laboratories for safety compliance)
  • RoHS Compliant (Restriction of Hazardous Substances)
  • EN/IEC 61810-1 (Switching devices)
• Standards:
  • Conforms to IEC 60947-5-1 (Low-voltage switchgear and controlgear)
  • Meets EN 50205 (Guidelines for relays with forcibly guided contacts)

Applications:

• Industrial Automation: Widely used in control panels, programmable logic controllers (PLCs), and machine automation
• Process Control: Controls industrial devices like motors, pumps, heaters, and lighting systems
• Building Automation: Used in HVAC systems, lighting control, and energy management systems
• Home Automation: Can be used in smart home systems for controlling electrical devices
• Signal Switching: Ideal for signal switching, alarms, and safety systems in electrical circuits
• Power Distribution: Suitable for switching circuits in distribution panels and low-voltage power systems
• Telecommunication Equipment: Relays used in signal processing or communication systems
• Lighting Systems: Relay modules used for lighting automation in industrial and commercial setups
• Temperature Control Systems: Used in systems with temperature-controlled relays for industrial ovens, furnaces, or other heating applications

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HF 41F 5V/12V/24V Slim DIN Rail Relay Module
darazsales

24v Relay 4 Channel Module

Specifications:

• Number of Channels: 4
• Relay Type: Electromechanical relay
• Control Voltage: 24V DC
• Relay Contact Rating:
  • AC: 250V AC at 10A
  • DC: 30V DC at 10A
• Isolation: Optocoupler isolation between control circuit and relay

Input Specifications:

• Input Voltage: 24V DC (to control the relays)
• Trigger Current: Typically around 20mA to 30mA per channel
• Trigger Type: Active Low (relays are triggered by grounding the input)
• Optocoupler Isolation: Each relay channel is isolated using an optocoupler for better noise immunity.

Output Specifications:

• Relay Contact Type: Normally Open (NO) and Normally Closed (NC)
• Max Switching Voltage: 250V AC, 30V DC
• Max Switching Current: 10A per channel
• Contact Material: Silver alloy for high durability

Mechanical Specifications:

• Board Dimensions: Typically around 75mm x 55mm x 20mm (may vary by manufacturer)
• Mounting Holes: Provided for screw mounting
• Connector Type:
  • Input: 4-pin terminal block for control signals (VCC, GND, IN1, IN2, IN3, IN4)
  • Output: 3-pin terminal block per relay (Common, Normally Open, Normally Closed)

Environmental Specifications:

• Operating Temperature: -40°C to +85°C
• Storage Temperature: -55°C to +125°C
• Humidity Range: 5% to 95% RH (non-condensing)

Features:

• LED Indicators: Each relay channel has an LED indicator to show the status of the relay (ON/OFF).
• Optocoupler Isolation: Provides isolation between the control signal and the relay for protection against voltage spikes and noise.
• High-Quality Relay: Ensures reliable switching with a long operational lifespan.

Power Specifications:

• Power Supply for Relay Board: 24V DC
• Power Consumption: Typically 75mA to 100mA per active relay

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24v Relay 4 Channel Module
darazsales

4 Channel 5V High-Level Solid State Relay Module

A 4 Channel 5V High-Level Solid-State Relay (SSR) Module is commonly used for controlling high-voltage AC loads with a low-voltage digital signal, typically from a microcontroller like an Arduino or Raspberry Pi.

Specifications:

• Relay Type: Solid State Relay (SSR)
• Number of Channels: 4
• Input Voltage (Control Side): 5V DC (high-level trigger)
• Output Voltage (Load Side): 240V AC (maximum)
• Output Current (Load Side): Up to 2A per channel
• Trigger Voltage: 3.3V to 5V DC

Input Specifications:

• Control Voltage: 3.3V to 5V DC
• Control Current: 2mA to 20mA per channel (depending on the input voltage)
• Trigger Type: High-level trigger (the relay is activated when the input signal is high, usually at 5V)
• Input Indicators: LED indicators for each channel showing when the relay is active

Output Specifications:

• Load Voltage: 75V to 240V AC
• Load Current: 0.1A to 2A per channel (depending on the load and cooling)
• Maximum Load: 500W per channel (with appropriate heat dissipation)
• Zero-Crossing Detection: Typically included, ensuring the relay switches when the AC load voltage crosses zero to reduce noise and inrush current

Electrical Characteristics:

• Isolation Voltage: 2500V between the input and output (optically isolated)
• On-State Voltage Drop: Typically around 1.5V AC
• Off-State Leakage Current: Less than 2mA
• Switching Time:
  • Turn-On Time: Less than 10 ms
  • Turn-Off Time: Less than 10 ms

Environmental Specifications:

• Operating Temperature: -30°C to +80°C
• Storage Temperature: -40°C to +85°C
• Humidity: 20% to 85% RH (non-condensing)

Connection Pins:

• Input Side:
  • VCC: 5V DC input
  • GND: Ground
  • IN1 to IN4: Control signals for each relay channel
• Output Side:
  • AC1, AC2, AC3, AC4: Normally open (NO) connections for each relay channel
  • AC Load: Connected in series with the AC load

Protection Features:

• Optical Isolation: Ensures that the control side is electrically isolated from the load side, protecting the microcontroller or other control circuits.
• Overvoltage Protection: Built-in protection against high voltage spikes.

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4 Channel 5V Relay Module High Level Solid State
darazsales

Wireless Remote Control Relay 1 Channel Alexa Googole Home Voice Control

Overview:

This product is a wireless switch that supports inching/self-locking modes

The relays is passive output(Dry contact), No matter the power you supply in the input, it only can make the pcb board work.
The output don’t have any voltage, you also need to supply power in output.so the connectted home appliance can work,

Two Working Mode

1.Self-locking :
Each channel could be switched on/off seperately.You can turn on/turn off all channel at the same time.

2.Inching mode :
Switch on one channel,the channel will be automatically closed after 0.5 seconds .Other channel is same as the channel.

If you need to change the mode,you need to change it in APP

Features

【Two Input Ports】
You could choose USB 5V port or the screw terminal port to supply power in the input to make the pcb board board work.
【Dry Contact/Passive Output】
No matter the power you supply in the input, the output don’t have any voltage
If you do not supply power in output port, the connectted home appliance can’t work, you also need to supply power in output.
【Timer】
The connectted home appliances can be automatically turned on/off according to the time schedule.
Each channel can set different time schedule.

Different Ways to Control the WIFI Module

【APP Remote Control】
You can control the connectted home appliance in eWeLink APP anywhere and anytime.Such as light, electric kettle, electric rice cooker, electric curtain, etc.
【RF433 Control】
The WIFI Module support RF433 Frequency,and you can control the WIFI module by RF433mhz remote controller.
【Mobile Phone Control】
When you go outside,you could control the device in your smart phone by 2G/3G/4G Mobile Network or WIFI.
(Note:The router need to online The WIFI module need to keep a close distance with the router and online in the app)
【Voice Control 】
Compatible with Alexa and Google Assistant, you can use the voice control to turn on/off the connectted home appliances .
【Share Control】
One device can control by Multiple phones,you can share the wifi module with your family.
【Group Control】
one phone can control Multiple smart device.You can add the wifi module and other smart device in a group,and then you can turn on/off all smart device at the same time.

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Wireless Remote Control Relay 1 Channel Alexa Googole
lahiru Dhananjaya

DC 5V Relay 2 Channel Module with Optocoupler Low-Level Trigger

Description:

• PCB Color: Black
• Weight: 31g
• Size: 50.5mm  x 38.5mm x 18.5m
• 5V 2-Channel Relay interface board and each one needs a 15-20mA Driver Current
• Equipped with high-current relay, AC250V 10A; DC30V 10A
• Indication LED’s for Relay output status
• Size: 50.5mm(L) x 38.5mm(W) x 18.5mm(H)(1.99inch x 1.54inch x 0.73inch)

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DC 5V Relay 2 Channel Module with Optocoupler Low-Level Trigger
darazsales