Overview:
This 2-Channel Optocoupler Relay Module offers versatile, dual-circuit load switching for microcontrollers, automation systems, and DIY electronics. Featuring independent jumper selection (S1/S2) for High or Low trigger modes per channel, it provides total flexibility for both positive and negative control logic.
Equipped with SMD optocoupler chips, the board ensures complete electrical isolation between your sensitive control board and connected high-power equipment.
Key Features:
- Dual Independent Control: Channels IN1 and IN2 operate independently with custom trigger levels.
- Flexible Voltage Options: Available in 5V, 9V, 12V, and 24V operating options.
- Fail-Safe Operation: Fault-tolerant control design prevents accidental relay activation on signal loss.
- Optical Isolation: SMD optocouplers provide noise suppression and component protection.
- Industrial Layout: 4× M3 mounting holes for secure enclosure installation.
Specifications:
- Available Supply Voltages (DC+ / DC-): 5V, 9V, 12V, 24V DC
- Trigger Current: 5mA per channel
- Maximum Load Capacity: AC 250V / 10A | DC 30V / 10A
- Output Contacts per Channel: NO (Normally Open), COM (Common), NC (Normally Closed)
- Board Dimensions: 50 mm × 41 mm × 18.5 mm (L × W × H)
- Mounting Hole Dimensions: 3.1 mm diameter (44.5 mm × 35.5 mm pitch)
| Terminal & Jumper Pinout Guide: |
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Terminal / Jumper
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Function Description |
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DC+
DC-
IN1 / IN2
COM (S1/S2) to LOW
COM (S1/S2) to HIGH
NO1 / NO2
COM1 / COM2
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Positive Power Supply (VCC)
Negative Power Supply (GND)
Signal Trigger Input Pins (Channel 1 / Channel 2)
Configures channel for Low-Level Trigger
Configures channel for High-Level Trigger
Normally Open Relay Contacts
Common Relay Contacts
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What you Get:
1 x Relay Board 2-Channel, Optocoupler Isolated 10A, Selectable High/Low Trigger (S1/S2)
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ELECTRONICS 
