Research-Cottrell 111300D Industrial Relay Controller

Research-Cottrell 111300D is an industrial relay controller designed for monitor-and-control tasks within precipitator systems. Identified by part number 111300-D and built by Research-Cottrell Inc., the compact module weighs 1.10 lb and is listed in the Data Control System and Monitor/Control categories. The unit is described as discontinued by the manufacturer, signaling its status as a legacy component intended for maintenance or restoration of existing precipitator installations rather than new builds. In typical precipitator-control architectures, the 111300D functions as a relay-control interface that coordinates discrete relay signals within the plant’s emission-control subsystem. Retailer notes tie the model to precipitator-current contexts, underscoring its role in power and signal management within high-voltage precipitator equipment. Because this is a discontinued item, potential buyers should verify compatibility with existing hardware and consider the availability of suitable substitutes or repair options. Some listings also indicate Prop65 warnings associated with the product, reflecting standard regulatory disclosures for electronic components.