Description
Product Description
The 2 Channel 12V Relay Module with Optocoupler is a versatile and professional-grade interface designed for reliable, isolated control in 12V-based systems. This module acts as a secure and intelligent bridge between 12V logic signals from controllers, Programmable Logic Controllers (PLCs), or automotive systems and various high-power AC or DC loads. Its core innovation is the integration of advanced optocouplers for both channels, creating a critical 2500V electrical isolation barrier. This barrier completely separates your sensitive 12V control electronics from the potentially noisy and hazardous high-voltage/current load side, ensuring immunity from damaging voltage spikes, ground loops, and electromagnetic interference.
Engineered for maximum flexibility, the module features selectable high-level or low-level trigger logic for each channel via simple jumpers. This provides seamless compatibility with any 12V control signal type, whether sourcing (PNP) or sinking (NPN). Combining dual high-current relay outputs, clear status indicators, and secure screw terminal connections, this compact module is the ideal solution for applications requiring robust, protected, and flexible dual-circuit switching, from industrial sensors to smart automotive accessories.
Key Features
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Dual-Channel Opto-Isolation: Both independent channels are protected by individual optocouplers, providing 2500Vrms of isolation to shield your 12V controller from load-side electrical noise and transients.
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Selectable Trigger Logic: Each channel can be configured for High-Level (active on +12V) or Low-Level (active on 0V) trigger via a jumper, ensuring compatibility with all 12V control outputs.
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Industrial 12V DC Compatibility: Designed for direct integration into standard 12V control environments common in industrial, automotive, and automation applications.
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High-Current Relay Outputs: Features two robust electromagnetic relays with SPDT contacts, each rated to switch loads up to 10A at 250VAC or 30VDC.
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Clear Visual Feedback: Dual LEDs per channel provide immediate status: one indicates opto-isolator input activation, and the other confirms physical relay switching.
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Secure & Reliable Connections: All high-power load and DC power inputs use reliable screw terminals for safe, vibration-resistant installations.
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Integrated Voltage Spike Protection: Each relay coil includes a flyback diode to suppress inductive kickback, protecting the driving circuitry and ensuring longevity.
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Compact & Versatile Design: A small footprint makes it easy to integrate into control panels, enclosures, or space-constrained projects.
Main Parameters
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Channels: 2 Independent Relays
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Control Voltage: 12V DC
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Trigger Mode: High or Low Level (Jumper Selectable)
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Isolation Voltage: 2500V RMS
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Relay Contact Rating: 10A @ 250VAC / 10A @ 30VDC
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Relay Type: Electromagnetic, SPDT
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Input Current (per channel): ~5-10mA
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Dimensions: Approx. 80mm x 55mm x 20mm
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