5pcs 5V 1-Channel Low-Level Trigger Relay Module, AC/DC 220V Interface Board for MCU

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Product Description Features Isolation groove separating the control area and load area. Power and relay action indicators light up when connected and turn off when disconnected. S ignal input triggers connectivity between public and common sides. Suitable for microcontroller development board module and home appliance control. Capable of controlling DC or AC signals, including 220V AC loads. Equipped with permanent open and close vent contacts. Easy connection via blue KF301 terminal access control cable. Specification VCC: Power interface, 5V GND: Ground connection IN: Control interface, requires at least 4mA drive current COM: Control circuit ground, connect to GND Dimensions: Approximately 41 x 16 x 16mm (1.61 x 0.62 x 0.62 inches) Weight: Approximately 12g Note High-level flip-flops indicate trigger mode based on voltage between signal input and ground; it's a method of short circuit triggering between signal input and positive VCC. Low-level flip-flops indicate OV trigger mode voltage between signal input and ground; it's a method of short circuit triggering between signal input and negative GND. Allow for 1-3mm variation due to manual measurement. The actual color of the item may vary due to different displays and lighting conditions. Package Included 5 x 1 Channel Relay Module Show more