3-channel relay module, high-voltage board with isolated optocoupler, 12V 3.3V-12V low-level trigger

Features: 1. Meets needs: The relay module can define high or low level triggers, meeting the needs of various triggering applications. 2. Direct connection: With a user-friendly interface design, all interfaces can be directly connected via terminal wiring, which is very convenient. 3. Fault-tolerant design: This 3-way relay module adopts a fault-tolerant design; even if the control line is damaged, the relay cannot operate. 4. Stable performance: This high-voltage relay module, with optocoupler isolation, has strong driving capability and stable performance. 5. Easy to use: This high-voltage relay module features high efficiency, a beautiful design, simple operation, and wide application. Specifications: Item Type: 3-Channel Relay Module Dimensions: 49 x 42 x 20 mm Trigger Current: 5mA (e.g., 3.3V microcontroller control; requires an I/O pull-up output function) Control Voltage: AC0-250V or DC0-30V Control Current: 0-7A Material: Electronic components How to use: 1. This module is high-level triggered. The pin header label on the board is GND (RGND). 2. 5V is the negative and positive terminals of the 5V relay power supply. CH1, CH2, and CH3 are the control ports. 3. Package List: 1 x 3-Channel Relay Module