The alphanumeric part code (BNN 550 R381-S00) breaks down into the following specific mechanical and electrical traits:
Manufacturer: Balluff GmbH (Made in Germany)
Series Type: BNN Line (Heavy-duty profile housing designed for absolute, high-precision linear position tracking in harsh manufacturing environments).
Measurement Length: 550 mm (Approx. 21.6 inches) active measuring stroke length. The actual physical length of the aluminum extrusion housing will be slightly longer to accommodate the dead zones and end-cap electronics on either side.
Design Configuration (R381-S00): Specifies the profile geometry, connector interface orientation, and internal sensor module characteristics (typically outputting a high-speed analog signal or a synchronous serial digital loop back to a central PLC card).
Environmental Protection: Typically rated at IP67 or higher, meaning the rail is fully sealed against high-pressure washdowns, cutting oils, coolant mist, and abrasive metal dust
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