Schneider Electric 9050B AC Timing Relay

Schneider Electric's 9050B AC Timing Relay (Square D Class 9050, Type B) is an AC-operated timing relay designed to inject a precise time delay into control circuits. In the Type B variant, the device includes a single instantaneous contact in addition to its timing function, enabling a controlled sequence of events in automation circuits. This timing relay is used to delay activation or deactivation of downstream equipment, supporting applications such as motor starters, interlocks, and sequencing in industrial controls. The 9050 family covers multiple coil voltages and timing ranges across 9050B variants, so exact specifications like coil voltage and delay period depend on the specific model number and configuration. As part of Schneider Electric's legacy Square D line, it is designed for robust performance in electrical control panels where reliable, repeatable timing is required.