The SeaI/O-450U-OEM is a USB-based I/O module featuring 16 SPDT Form C relays for industrial control applications. The Form C relays allow for DC switching of up to 60VDC @ 2A, ideal for devices like HVAC systems, security controls, and alarm systems. The relays are grouped into four-bit segments for easy wiring, and the module is powered via 9–30VDC input.
Communication with the control system is done via USB using the Modbus RTU protocol, simplifying integration. The module supports up to 246 additional SeaI/O N-series modules for expansion and uses the SeaLATCH USB port for a secure, metal-to-metal connection, preventing accidental disconnections.