Quality first, customers first. Ji 宁浩博 mining equipment specializing in the production and sales of mining equipment protection switching products, adequate supply, complete model, low price, timely delivery, quality Three Guarantees, welcome to contact to discuss the industry, integrity is priceless, win-win cooperation . ? PIR-400II magnetic starter intelligent integrated protection device for the second generation of intelligent integrated protection device for magnetic starter mine, covering 380V, 660V, 1140V, 3300V voltage rating, 5 ~ 630A rated current, all-digital tuning. With undervoltage | overvoltage | overload | short circuit | Unbalanced | break with | Wind Power | Gas | Temperature protection | leakage lockout protection; with fault memory and query capabilities; with four remote RS485 communication function; with test function menu . Certified by EMC testing and proof testing center. ? 1 ,? measurement technology parameters Rated current: 5 ~ 630A 2 ,? Rated voltage: 10VAC 3 ,? Rated frequency: 50Hz 4 ,? content measurement: U, I, R, temperature, gas 5 ,? Accuracy: ± 5 % 6 ,? switch input methods: optical isolation ,? power level measurement 7: 6 ‰ precision environment an altitude of no more than 2000m, the air pressure is 80kPa ~ 110kPa 2, the ambient temperature is -5 ℃ ~ + 55 ℃ 3, ambient air relative humidity less than 95% (+ 25 ℃ when) 4, no obvious damage to the insulation of 5 atmospheres, to prevent dripping local standard Host a current transformer 3 power a set of connectors that product introduced here, if you have any questions or want to purchase our products, please contact me Tel: 15589715136 Tel: 0537-2782188 QQ: 877995102 Company Website: http: //www.wgangdai.com welcome your calls consultation, we look forward to working with you business, create a more beautiful tomorrow.