BESTEP 1-way electromagnetic relay module with dual optocoupler isolation supports high and low trigger 24V

Description

Product Overview

The BESTEP 1-Way Electromagnetic Relay Module is a high-performance, industrial-grade control module designed to provide a safe and reliable interface between low-voltage logic circuits and high-power devices. Operating at 24V DC, this module is ideally suited for PLC automation systems, industrial control panels, building automation, and 24V industrial equipment .

Featuring dual optocoupler isolation, this module creates a robust physical and electrical barrier between your sensitive microcontroller (such as Arduino, STM32, or ESP32) and the high-voltage load side. This effectively eliminates electrical noise, protects against back-EMF spikes from motors and solenoids, and ensures system stability in demanding industrial environments .

This versatile module supports both High-Level and Low-Level Trigger modes, selectable via an onboard jumper, making it compatible with virtually any digital logic system without the need for external level shifters. With a relay contact rating of 30A at 250V AC or 30A at 30V DC, it can handle substantial loads, including heavy-duty motors, industrial pumps, compressors, and high-power lighting systems .

Key Features

• 30A High-Power Switching: Relay contacts rated for 30A at 250V AC or 30A at 30V DC, suitable for heavy-duty industrial equipment, motors, and high-power appliances .

• Dual Optocoupler Isolation: Features two optocouplers providing enhanced electrical isolation between the control side and the high-voltage load side, ensuring superior noise immunity and protection against voltage spikes .

• 24V DC Operation: Designed for 24V industrial control systems, making it ideal for PLC automation, building management systems, and industrial controllers .

• Universal Trigger Modes: Supports both High Level (Active HIGH) and Low Level (Active LOW) trigger modes, selectable via an onboard jumper, allowing compatibility with any microcontroller or PLC logic system .

• SPDT Contact Configuration: Provides Common (COM), Normally Open (NO), and Normally Closed (NC) terminals for maximum wiring flexibility .

• Fault-Tolerant Design: Even if the control line is disconnected or broken, the relay will not operate unintentionally, ensuring fail-safe behavior in critical applications .

• Clear Status Indicators: Onboard LEDs provide visual feedback: a green power LED illuminates when 24V power is applied, and a red relay status LED illuminates when the relay is activated .

• Compact and Mountable: Small form factor with four 3.1mm mounting holes (44.5mm × 27.5mm spacing) for secure installation in control cabinets or on DIN rails .

Technical Specifications