National New Year folks Hello everyone, I 宁浩博 mining company Ji Machinery Co., Ltd. with its strong technology, excellent product quality, satisfactory service, in the market enjoy a high reputation. Intelligent integrated protection with excellent quality, trusted by the user. First-class products, good service is our consistent aim! The company is willing to friends and the community work together for common development! The staff warmly welcome the global community of companies and individuals to negotiate business for a better future! You have any questions about the company and products need advice, you can call the telephone company and we look forward to your sincere cooperation. Let me take you to understand this product: This device can be used to mine high voltage distribution switchgear and high-voltage magnetic starter, covering 6kV, 10 kV voltage level, 5 ~ 630A rated operating current; all-digital tuning and calibration; with undervoltage | overvoltage | overload | short circuit | Equilibrium | leakage protection (ground fault protection) | Protection insulation surveillance; with RS485 or CAN bus in the form of four remote communication functions; with calendar clock; with fault memory and query capabilities; have Test menu functions. Functional, well-targeted, long-term stable and reliable operation. Certified by EMC testing and proof testing center. Measurement parameters 1, Rated current: 5 ~ 630A 2, Rated voltage: 100VAC 3, Rated frequency: 50Hz 4, measuring content: U, I, R, U0, I0 5, Accuracy: ± 5% 6, switch input way: 1 optically isolated environment, altitude not exceeding 2000m, pressure is 80kPa ~ 110kPa 2, the ambient temperature is -5 ℃ ~ + 55 ℃ 3, ambient air relative humidity less than 95% (+ 25 ℃ when) 4, No significant damage to the insulation of 5 atmospheres, to prevent dripping place 6, installed in 6kV or 10kV distribution equipment explosion chamber for explosive gas (methane mixture) in the standard configuration mine PIR-III-RK PIR-III -RX host a host a zero-sequence current transformer a zero-sequence current transformer a current transformer 2 displays a display a data line two data lines 2 terminal element a terminal one or more elements is the introduction of this product, if you have any questions please contact us, you can also visit to the company site.