The Omron K3HB-PNB 24VAC/VDC is a panel-mount time counter from the K3HB-P series, designed for production lines where you need to track elapsed time or count events at high speed. It accepts both no-voltage and voltage input signals, counts up at a 50kHz rate, and resets externally via a dedicated signal. The dual-color LCD with backlight shows two rows of five characters each — the main display at 14.2mm height and a smaller sub-display at 4.9mm for secondary data like preset values or batch totals.
The 50kHz count rate means this counter can catch fast events like a sensor on a high-speed packaging line or a rotary encoder on a servo-driven conveyor — it won't miss pulses at typical production speeds. The external reset is a hard-wired input, so you can tie it to a PLC output or a pushbutton for remote clearing without opening the panel. The IP66 rating means the front face is dust-tight and protected against hose-directed water — let me show you why that matters: you can mount this on a panel that gets washed down in food, beverage, or pharmaceutical lines without worrying about moisture getting into the display or the screw terminals.
Mounts in a rectangular panel cutout of 92.00mm x 45.00mm — that's a standard DIN-size opening for 1/8 DIN instruments, so it fits existing punch patterns without rework. The screw terminals on the back accept solid or stranded wire; strip length and torque follow standard panel practice.