The relay module is a versatile switching relay designed for alternating current applications. It operates with an input voltage of 115 volts and provides an output voltage of 120 volts, supporting a maximum output current of 5 amperes. With a width of 31 millimeters and a configuration of four poles, this module is compact and suitable for various installations. It is important to note that this relay module is not compatible with smart home systems. The product is delivered as a complete relay module and is available under the manufacturer designation 858-517. This relay module is ideal for applications that require reliable switching of electrical loads and offers a robust solution for controlling devices in industrial or commercial environments.