MULLER BW 40 Series Hours Counter

The MULLER BW 40 Series Hours Counter is a robust, non-resettable motor-driven unit designed for the accurate and reliable tracking of equipment runtime. Housed in a durable panel-mounting case constructed from Noryl and Makrolon materials, it offers excellent resistance to impact and environmental factors. With a high-resolution display of 0.01 hours, it provides precise monitoring for maintenance scheduling and operational logging.

The seven-digit display features clear differentiation, with decimal digits shown in red and the others in white for easy at-a-glance reading. For secure installation, the counter is supplied complete with a panel mounting bracket and features a ring seal that provides IP54-rated ingress protection. This seal also effectively seals the front panel cutout, preventing dust and moisture ingress.

Electrical connection is versatile, accommodating either screw terminals or 6.35mm (0.25”) fast-on terminals for convenient wiring. The counter operates across a wide AC supply voltage range from 195.5V to 264.5V, making it suitable for various industrial and commercial power systems. It reliably counts elapsed time from 0 up to a maximum of 99,999 hours, ensuring long-term service life tracking for machinery, generators, compressors, and other critical assets.

Its compact dimensions allow for installation in control panels and equipment dashboards where space is at a premium. The non-resettable function guarantees an auditable, tamper-proof record of total operating hours, which is essential for warranty validation, preventative maintenance planning, and calculating service intervals.