1/2/4/8 Channel Solid State Relay Module SSR Low Level 5V 2A Arduino

$7.95$26.95 Inc. GST

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Introducing our versatile Solid State Relay (SSR) Modules, available in 1, 2, 4, and 8-channel configurations, designed to provide seamless control and reliability for your projects. Engineered for efficiency and compatibility with Arduino and other microcontrollers, these SSR Modules offer a superior solution for a range of applications.

Key Features:

  1. High-Quality Performance: Each 5V solid state relay boasts a remarkable 240V 2A capacity, complemented by an integrated resistive fuse for enhanced safety and durability.
  2. Flexible Sizing Options: Choose the perfect fit for your setup:
    • 1-channel: 25 * 34 * 25 (L * W * H)
    • 2-channel: 55 * 33 * 25 (L * W * H)
    • 4-channel: 57 * 55 * 25 (L * W * H)
    • 8-channel: 106 * 56 * 25 (L * W * H)
  3. Effortless Integration: Powered by a 5V DC input (160mA), these modules facilitate easy compatibility with various systems.
  4. Precise Control Signal: Tailor your control with high and low-level trigger options:
    • High-Level: Relay ON with 0-2.5V signal, OFF with 3.3-5V signal
    • Low-Level: Relay OFF with 0-2.5V signal, ON with 3.3-5V signal
  5. User-Friendly Design: Experience seamless connectivity with 2.54CM pins and the convenient blue KF301 terminal control lines.

Input Section:

  • DC +: Connect to positive power supply (matching relay voltage)
  • DC -: Connect to negative power supply
  • CH1/CH2/CH3/CH4: Signal trigger terminals for each relay module (low-level trigger active)

High and Low Trigger Explanation:

  • High-Level Trigger: Voltage between signal trigger side (IN) and negative power supply is positive, resulting in relay activation upon reaching trigger voltage.
  • Low-Level Trigger: Voltage between signal trigger terminal and negative terminal of power supply is ≤0V, or lower than positive terminal voltage. Relay activates when trigger voltage is sufficiently low.

Electrical Parameters:

Channels Voltage Quiescent Current Operating Current Trigger Voltage Trigger Current
1 5V 0mA 12.5mA 0-2.5V 2mA
2 5V 0mA 22.5mA 0-2.5V 2mA
4 5V 0mA 48mA 0-2.5V 2mA
8 5V 0mA 102mA 0-2.5V 2mA

Product Manual:

  1. Module Power Supply: Ensure a matching DC voltage for the power supply and relay voltage.
  2. Wiring Method: Activate the relay by providing the appropriate signal trigger level. The device will then energize and perform its intended function.


  1. Module Power Supply: Exclusive use of 5V DC power supply is mandatory.
  2. Module Control Terminal Voltage: These modules are optimized for AC current control and cannot regulate DC currents.

Elevate your project with our feature-rich Solid State Relay Modules, offering optimal control and precision. Choose the configuration that aligns with your needs and experience enhanced performance like never before.

Additional information

Weight 100 g
Dimensions 260 × 160 × 50 mm

1, 2, 4, 8


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