The Fuji Electric PXF5ACR2-JBCA1 is a self-tuning 1/8 DIN (48 x 96 mm) compact temperature and process controller with a 50 ms sampling speed. That sampling rate means it can catch fast thermal transients in processes like injection molding or small-zone reflow ovens where a standard 100–200 ms controller would lag behind the setpoint.
The 1/8 DIN (48 x 96 mm) panel cutout is the standard footprint for this controller class — it drops into the same hole as older Fuji PXR or PXG units without panel rework. The 50 ms sampling speed is a genuine upgrade over the 100 ms typical of earlier PXG-series controllers, so you can tighten loop response on an existing thermocouple or RTD input without rewiring the sensor.