The quality of survival, reputation and development, PIR-250 intelligent integrated protection and cheap, product quality and safety of your relationship with me, PIR-250 intelligent integrated protection safety first, quality first, buy PIR-250 Intelligent Integrated Look Shandong Haobo protection, not expensive, only buy! 186 * 1368 * 7339 PIR-250 Smart Protector is designed for coal mine 380V, integrated power system protection devices 660V.1140V flameproof magnetic starter design and development, as well as to meet the state flameproof vacuum magnetic starter digitization transformation of specially designed, can completely replace the JDB and other analog protection switching function more perfect, more accurate protection action. The device is used to mine magnetic starter, covering 380V, 660V, 1140V voltage rating, 5 ~ 250A rated current, all-digital tuning and calibration. With undervoltage | overvoltage | overload | short circuit | Unbalanced | leakage lockout protection; with fault memory and inquiries; with test functions via the menu. Mainly used to replace JDB-80/120/225 and similar analog protection. Functional, well-targeted, long-term stable and reliable operation. EMC tested and certified by the explosion center. Measurement parameters 1, Rated current: 5 ~ 250A 2, Rated voltage: 36VAC 3, Rated frequency: 50Hz 4, measuring content: U, I, R 5, Accuracy: ± 3% 6, the switch input methods: optical isolation Use of the environment 1, 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 The atmosphere in 5 places to prevent dripping These are the details PIR-250 intelligent protector, if you PIR-250 intelligent protection, price, manufacturer, model, pictures have any questions, please contact us at: 18613687339 Jining Haobo company has been adhering to: quality of life, integrity and personal behavior. Haobo people have always believed: Innovation is fundamental, quality of life, pragmatism is the purpose of efficiency is the goal. The company product range, low prices. Mainly sold in Beijing, Tianjin, Hebei, Shanxi, Inner Mongolia, Liaoning, Jilin, Heilongjiang, Shanghai, Jiangsu, Zhejiang, Anhui, Fujian, Jiangxi, Shandong, Henan, Zhengzhou, Hubei, Hunan, Guangdong, Guangxi, Hainan, Chongqing, Sichuan Guizhou, Yunnan, Tibet, Shaanxi, Gansu, Qinghai, Ningxia and Xinjiang. PIR-250 intelligent integrated protection quality good price, your needs is our driving force, fast dial 186-1368-7339 consulting business negotiations and look forward to your call economic 宁浩博 various types of protection by users throughout the country use and recognition, low prices, excellent products, is your choice consistently.