Relay Module 2 Channel 12V (high/low) level trigger

🔑 Key Features

✅ 2 Independent SPDT Relays – Control two circuits separately. ✅ 12V DC Control Voltage – Works with car electronics, PLCs, and 12V microcontrollers. ✅ Optocoupler Isolation – Prevents damage to control circuits. ✅ High/Low Level Trigger Selectable – Jumper-configurable for flexibility. ✅ LED Status Indicators – Visual feedback for relay activation. ✅ Screw Terminal Connectors – Secure wiring for high-power loads. ✅ Wide Compatibility – Supports AC (250V/10A) and DC (30V/10A) loads.

📊 Technical Specifications

• Control Voltage: 12V DC

• Trigger Current: ~15-20mA per channel

• Max Load per Relay:

  • AC Loads: 250V / 10A

  • DC Loads: 30V / 10A

• Relay Type: Electromechanical (SPDT – Normally Open + Normally Closed + Common)

• Optical Isolation: Yes (PC817 or similar optocoupler)

• Trigger Mode: High or Low level (jumper-selectable)

• Dimensions: ~50mm × 45mm × 20mm

🔌 Wiring & Usage

1. Control Connections (12V Logic)

• VCC: Connect to 12V power supply (for relay coil).

• GND: Common ground (shared with control signal).

• IN1, IN2: Signal pins (activate with 12V HIGH or LOW, depending on jumper setting).

2. Load Connections (Screw Terminals)

• NO (Normally Open): Circuit closes when relay is ON.

• COM (Common): Central contact.

• NC (Normally Closed): Circuit opens when relay is ON.

⚠ Warning:

• Do not exceed 250V AC / 10A per channel.

• Keep high-voltage wiring separate from control circuits.

🛠 Applications

• Automotive systems (12V car electronics, lights, fans).

• Industrial machine control (PLC interfacing).

• Home automation (appliance control via 12V triggers).

• DIY power distribution panels.

• Safety cutoffs & emergency switches.

📦 Package Includes

• 1× 2-Channel 12V Relay Module.

• (Optional) Jumper caps & mounting screws.

⚡ Why Choose This Relay Module?

✔ 12V-Compatible – Perfect for automotive & industrial use. ✔ Dual Trigger Modes – Works with active HIGH or LOW signals. ✔ Optical Isolation – Protects control circuits from surges. ✔ LED Indicators – Easy troubleshooting.

🔧 Trigger Mode Selection

• HIGH-Level Trigger (Default): Relay activates when IN = 12V.

• LOW-Level Trigger: Relay activates when IN = 0V (set jumper).

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