This 5V relay module is ideal for single-chip development board module applications and can be used to control DC or AC signals up to 220V AC load. It has a power indicator, control indicator light, normally open and normally closed contacts, and a pull-down circuit to prevent false relay action. Transistor drive increases the relay coil.
This relay module features a wide voltage 6-30V power supply, optocoupler isolation for enhanced anti-interference, and an LCD display for clear control. It supports button trigger control, high and low level trigger, switch control, and UART data upload. The timer ranges from 0.01s-9999min, and all settings are saved after power off. It also has a sleep mode and reverse connection protection.
This 15A current overload protection switch provides real-time monitoring of electricity safety. It has an input voltage of AC 220V and an adjustable output voltage of 0-220V, with a maximum limit power of 4000W. It has a rated current of 9A and a limit current of 18A, offering low-voltage start-up with a trigger module of 10V and 60V without a trigger device.