4 Channel 3–24V High-Level Solid State Relay Module (SSR) with Resistive Fuse

The 4 Channel 3–24V Solid State Relay Module is designed for reliable and efficient control of multiple DC loads through low-voltage digital signals. The module features four independently controlled channels, allowing users to operate different loads individually from a microcontroller or other digital control system.

Unlike traditional mechanical relays, this solid-state relay module does not use moving contacts. This provides silent switching, faster response, reduced mechanical wear, and longer operating life, making it suitable for applications that require frequent switching.

The module operates with a 3–24V DC supply/control voltage and supports switching loads up to 50V DC at 2A per channel. Each channel has its own LED indicator to provide a quick visual indication of the relay status.

Key Features
4 independent solid-state relay channels
3–24V DC operating/control voltage
Supports up to 2A load per channel
Switching voltage up to 50V DC
High-level trigger input
Individual LED indicators for each channel
Silent operation with no mechanical contacts
Suitable for frequent switching applications
Directly compatible with microcontroller-based systems
Useful for automation, lighting, embedded systems, and DC load control

Input Connections
DC+ – Positive power supply connection
DC− – Ground connection
IN1 – Channel 1 control input
IN2 – Channel 2 control input
IN3 – Channel 3 control input
IN4 – Channel 4 control input

The channel inputs are activated by a high-level signal.

Technical Specifications
Specification Details
Product Type 4 Channel Solid State Relay Module
Part Number H3MB-052D
Number of Channels 4
Supply Voltage 3–24V DC
Supply Current 160mA
Trigger Voltage 3–24V DC
Switching Rating 50V DC @ 2A
Trigger Type High Level
Status Indicator LED
Relay Type Solid State

Applications
Industrial and equipment automation
Microcontroller projects
DC load switching
Lighting control systems
Embedded control systems
Electronic control panels
DIY and educational electronics projects

Package Includes

1 × 4 Channel 3–24V Solid State Relay Module

Warranty

15 Days Warranty against manufacturing defects from the date of delivery.

Country of Origin

China