Relay Module 2-Channel with Optocoupler Isolation (High/Low Level Trigger, 10A, 5V/9V/12V/24V)

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)

What you Get:
1 x Relay Board 2-Channel, Optocoupler Isolated 10A, Selectable High/Low Trigger (S1/S2)