Description
Product Description
The 8-Channel Opto-Isolated 12V Relay Module is a professional, high-density interface designed for complex industrial control systems, sophisticated automation, and applications where managing multiple circuits with absolute electrical integrity is critical. This advanced module provides eight completely independent, optically isolated channels, allowing you to safely interface 12V control systems—such as PLCs, industrial controllers, or 12V logic—with a wide array of high-power AC or DC loads. Each channel is fortified with its own optocoupler, establishing a robust 2500V isolation barrier that completely separates the sensitive control side from potentially noisy and hazardous load circuits, preventing ground loops, voltage spikes, and electrical interference.
Engineered for maximum flexibility, the module features selectable high or low-level trigger logic for each channel via convenient jumpers, ensuring seamless compatibility with any 12V sinking or sourcing control logic. The integration of dual status LEDs per channel provides unparalleled diagnostic clarity, indicating both the opto-isolator activation and the physical relay state. With its eight high-current relays, secure screw terminals, and industrial-grade construction, this module is the definitive solution for building reliable control panels, machine interfaces, and multi-zone automation systems where safety, noise immunity, and high channel count are non-negotiable.
Key Features
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High-Density 8-Channel Control: Manage up to eight completely independent electrical circuits from a single, integrated module, maximizing control capability in complex systems.
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Full Optical Isolation per Channel: Each channel features an independent optocoupler providing 2500Vrms of isolation, ensuring total protection for your 12V controller from load-side transients and noise.
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Selectable Trigger Logic: Individual jumper selection for each channel allows configuration as either High-Level (active-HIGH) or Low-Level (active-LOW) trigger, for perfect compatibility with any 12V control system (PLC, microcontroller, etc.).
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Industrial 12V Compatibility: Designed specifically for 12V DC control systems commonly used in industrial automation, automotive, and PLC environments.
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High-Current Relay Outputs: Eight industrial-grade electromagnetic relays with SPDT contacts, each capable of switching up to 10A loads, suitable for motors, solenoids, heaters, and lighting.
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Comprehensive Diagnostic Indicators: Dual LEDs per channel provide clear visual feedback: one for opto-isolator input status and one for relay coil/output status, simplifying installation and troubleshooting.
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Robust & Secure Connections: All high-power load and control power connections utilize heavy-duty screw terminals for reliable, vibration-resistant wiring in demanding environments.
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Integrated Protection Circuits: Includes flyback diodes across each relay coil to suppress inductive voltage spikes and protect the driving circuitry.
Main Parameters
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Number of Channels: 8 Independent Relays
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Control & Logic Voltage: 12V DC
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Trigger Mode: High or Low Level (Jumper Selectable per channel)
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Isolation Rating: 2500V RMS (Optocoupler)
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Relay Contact Rating: 10A @ 250VAC / 10A @ 30VDC
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Relay Type: Electromagnetic, SPDT (Single Pole Double Throw)
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Input Current (per channel): ~5-10mA (to activate optocoupler)
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Dimensions: Approx. 145mm x 100mm x 25mm
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