4 Channel 5V Relay Module High Level Solid State

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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