This product is an 8-way high-current relay module controlled by an industrial RS485 interface. It adopts the Modbus RTU protocol, has built-in power isolation, magnetic coupling isolation, self-recovery fuse and protection circuits, and an ABS rail housing design. This product is easy to operate and has the characteristics of fast, stable, reliable and safe communication. It can be applied to various industrial control equipment or applications with high communication requirements., Weight: 1.43080008038 Pounds, Manufacturer: Awwertse