Industrial YL261001-LL Amplifier Level Detector Board

The ABB/ASEA YL261001-LL Amplifier/Level Detector Board is an industrial control module that combines signal amplification with level-detection capabilities, designed to integrate into legacy ASEA/ABB automation systems. Identified by the YL261001-LL part designation, it is widely described in supplier catalogs as an Amplifier/Level Detector Circuit Board and is associated with ASEA/ABB equipment families. In practice, modules of this type serve to condition raw sensor signals, boosting their strength for processing by downstream controls while providing a monitored level indication that can trigger alarms or control actions. The YL261001-LL designation appears in multiple catalog listings and surplus marketplaces, reflecting its role as a compatible component for maintaining or repairing older ABB/ASEA installations. While exact electrical parameters and connector details vary by installation and chassis, this board is recognized in industry references as a dedicated amplifier and level-detection solution for industrial control panels.