Baumer Electric BHF 165A1000 K555 1000PPR Hollow Shaft Encoder

Baumer BHF 165A1000 K555 is an incremental hollow-shaft encoder from Baumer’s BHF family, delivering 1000 pulses per revolution for precise speed and position feedback on rotating equipment. The unit features a 58 mm flange (ø58 mm) and a hollow shaft with a 12 mm bore configured as a blind hollow shaft, using optical sensing with outputs A and B plus a reference N signal (90° width) for reliable indexing. It supports multiple supply options (5 VDC ±10%, 10–30 VDC, or 4.5–30 VDC variants depending on config) and provides push-pull, short-circuit‑proof output stages with an overall output frequency up to 750 kHz. The housing is aluminum with a 12‑pin M23 connector (or cable options) and a typical 2 m cable length, with a weight around 300 g. Protective ratings vary by variant, commonly IP42 or IP65, and operating speeds range up to 12,000 rpm (IP42) or 6,000 rpm (IP65). The encoder carries UL approval (E217823) and uses Baumer’s optical sensing method for robust performance in industrial environments. This specific BHF model designation, 165A1000 K555, denotes the 1000 PPR variant within the Baumer BHF series.