Schneider Electric AS-BDAU-208 Auxiliary Relay

Schneider Electric AS-BDAU-208 Auxiliary Relay is a compact RelayAux accessory that expands a control system’s relay signaling by adding extra contacts for field-device interconnection. Built for tripping and control applications, it helps connect sensors, interlocks, alarms, and other I/O to a controller in industrial cabinets, substations, or process lines. As part of Schneider Electric’s RelayAux family, the AS-BDAU-208 inherits the line’s focus on robust electrical isolation between input and output circuits, high-speed operation, and durable construction designed for demanding environments. The product is designed to simplify installation and integration within Schneider Electric I/O architectures, supporting reliable signaling in protection schemes and automation applications. Typical uses include extending signaling and interlock capabilities in electrical utilities, power generation, manufacturing, and process industries where compact, dependable control interfaces are required. RelayAux relays are designed to meet international standards and bear the CE mark, reflecting broad compatibility across global systems. While specific electrical ratings for the AS-BDAU-208 depend on the exact installation and configuration, it is positioned as a trusted Schneider Electric option for adding auxiliary contacts in control circuits without compromising safety or reliability.