Sullair 250030-377 Safety Circuit Board PCB

The Sullair 250030-377 is a specialized safety circuit board designed for use in Sullair industrial air compressors, particularly in models like the LS series rotary screw compressors. This PCB serves as a critical component in the compressor's control system, monitoring and managing safety functions such as high oil temperature (HOT), low oil pressure (LOP), motor overload (MOL), and other protective relays to prevent equipment damage and ensure operational safety. It integrates transformers, capacitors, ICs, and terminal blocks for seamless connectivity to sensors and controllers. Key benefits include enhanced reliability in harsh industrial environments, quick fault detection to minimize downtime, and compatibility with Sullair's robust compressor lineup, offering advantages over generic boards through OEM-specific calibration and durability. Drawbacks may include limited availability of parts for older models and the need for professional installation to avoid voiding warranties. Applications span manufacturing, construction, and energy sectors where compressed air systems require fail-safe operations. Compared to similar products from competitors like Ingersoll Rand, the Sullair board provides superior integration with proprietary systems, reducing integration issues and improving overall efficiency. Condition analysis from images indicates it is used, with visible dust and wear but no apparent damage to components; faceplate shows part number 250030-377, code 987, and terminals like SDP, COM, AFD. No parent/child assets visible. Estimated market price range for used units: $150-300 USD, based on recent online listings for comparable Sullair PCBs. Relevant resources: Sullair LS Series Manual (summary: installation and troubleshooting guide; link: https://www.sullair.com/sites/default/files/2020-07/LS_Series_User_Manual.pdf); Sullair Parts Catalog (summary: part number decoder and specs; link: https://www.sullair.com/en/parts-service).