ASCO RD30A11 Pneumatic Switch

ASCO RD30A11 is the transducer component of ASCO’s P-Series Pressure and Temperature Switches, intended to be paired with a separate switch unit to create a complete factory-assembled pneumatic pressure switch. In the P-Series architecture, the system comprises two primary components: a switch unit and a transducer unit, and factory-assembled combinations are ordered by linking their catalog numbers (for example PA36A/RD30A11). The RD30A11 transducer works with various switch units to deliver a configured PA–RD or PB–RD/PC–RD assembly, with the exact operating range and electrical behavior defined by the companion switch unit chosen. This family (including RD30A11 and related transducers such as RD30A71, RD30A21, and RD30A42) is designed for industrial pneumatic control, converting sensed pressure into a signal that drives the corresponding switch action in automated systems. Typical applications include industrial automation and process control where precise pressure monitoring is essential to actuate or interlock equipment within hydraulic and pneumatic circuits. By selecting the appropriate switch unit, engineers tailor the overall performance to the desired setpoint, deadband, and switch type for their specific application, while preserving ASCO’s documented two-component concept: a dedicated transducer paired with a suitable switch module to form a complete pressure-switch solution.