DESCRIPTION

The 99772717 is a 48 x 48 mm hour counter (CHM48) designed for AC and DC applications with high counting capacity and reliable operation. It features a counting capacity of 99,999.99 hours for AC operation (100,000 hrs) and 999,999.99 hours for DC operation (1,000,000 hrs), with read accuracy of 1/100 hour and digit height of 4 mm for excellent visibility. The counter operates at 60 Hz with voltages ranging from 360–440 VAC, offers IP52 protection, and includes an operation indicator (rotating red lines for AC, 1/100 hr digit advancement for DC). It is highly resistant to shocks and impacts, operates across a temperature range of -15°C to +50°C, and can be mounted on panels or on DIN rails with an optional connector base accessory. This counter is ideal for industrial applications requiring accurate hour tracking, equipment monitoring, and maintenance scheduling in harsh environments.