Ji Ning Haobo Quality is an eternal theme. The market is the sea, the quality of the ship, the brand is a fan. Today, the quality of tomorrow's market. Build quality Great Wall, Hing Chinese economy. For your business to provide multi-faceted services. PIR-4008Z combination switch intelligent integrated protection device can be used to mine for 2 to 8 loops magnetic starter combination switch, covering 3.3kV, 1140V, 660V, 380V voltage, 10 ~ 500A rated current, all-digital tuning and calibration. With undervoltage | overvoltage | overload | short circuit | equilibrium | leakage lockout protection; with RS485 four remote communication functions; with calendar clock; with fault memory and inquiries; with test functions via the menu. Have joint control | multiple control modes Single, etc. | sequencer | dual speed circuits. Functional, targeted, long-term stable and reliable. By EMC testing and proof testing center. Measurement parameters 1, Rated current: 10 ~ 500A ?? 2, rated voltage: 127VAC 3, rated frequency: 50Hz ?? 4, measurement content: U, I, R 5, Accuracy: ± 3% 6, digital input : optically isolated environment requirements 1, altitude of not more than 2000m, the air pressure is 80kPa ~ 110kPa 2, ambient temperature of -5 ℃ ~ + 55 ℃ 3, ambient air relative humidity less than 95% (+ 25 ℃ when) 4, in the absence of significant damage to the insulation of gas environment 5, can prevent dripping Standard Host a place to display a current transformer 3 / per 1 data line drive circuit board 1 / every 2 loop power a set of connectors