BES Q40KFU-PAC20A-S04G-W01, identified by Balluff as BES0457, is a 40×40×62 mm square inductive sensor designed for magnetic-field-resistant applications. Its 20 mm sensing range and flush-mountable housing let it detect metal targets in tight spaces, while the PNP switching output supports NO/NC configurations for straightforward integration with DC control circuits. As part of Balluff’s BES Q40KFU family, this factor-1 sensor emphasizes reliable metal detection in industrial environments where magnetic fields may be present, making it suitable for end-of-travel and proximity sensing on metal components in automation equipment.
