🔑 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).

🚀 Upgrade Your 12V Control System – Order Today!

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ATMEGA8A

ATMEGA8A

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