Product pictures Product Overview: Emerson EAU01 Parameter Specification Manufacturer Emerson Order Number EAU01 Product Type Monitoring & control module — not a rectifier/charging module, not a battery, not a main monitor Core Function Collects AC input signals and drives AC input contactors, enabling automatic changeover between two independent AC supplies Application & Fault Scenarios Typical Uses: Installed in substation and telecom DC power screens to monitor two