Protector, also known as residual current protective devices, electrical safety protection for electrical devices, anti-high-pressure device built-in intelligence, in exceptional circumstances Electric suffered high transient voltages, will be smart to start the internal protection devices, to ensure that after end with the electrical safety of electrical appliances. The device for the first generation of intelligent integrated protection device for mine magnetic starter, covering 380V, 660V, 1140V voltage level, 40 to 500A Rated operating current, all-digital tuning. With undervoltage | overvoltage | Overload | Short | three-phase unbalanced | off | leakage lockout protection; with fault memory and query capabilities; the menu test function. Protection device is the first smart magnetic starter. Note: The applicable side shell mining magnetic switch protection, also known as residual current protective devices, electrical safety protection for electrical devices, anti-high-pressure device built-in intelligence, high transient voltages in electrical suffered exceptional circumstances , will be smart to start the internal protection devices to ensure the safety of the back-end with electrical power. Measurement of technical parameters: 1, rated current: 40 ~ 500A 2, Rated voltage: 15VAC 3, Rated frequency: 50Hz 4, measuring content: U, I, R 5, measurement accuracy: ± 5% 6, the switch input methods: Optical isolation, power metering: Accuracy 6% the company also produces other types of protection, such as: PIR-400 PIR-800 ZLDB-5T ZLDB-5X ZLZB-7T ZBT-11 JL-200 welcome to inquire and field trips Contact by: Construction Contact mefo Telephone: 13165376735 fixed telephone 0537 -2789995 Fax :0537-2789995 QQ: 2367327479 Want: haobogongkuangtian E-mail: 2367327479@qq.com Name: economic Ninghao Bo Mining Machinery Co., Ltd. Note: website images are for reference only kind or consult our sales staff