Features： 1、Visual Window: The visual window of this surge protector indicates the working conditions, so that you can monitor the actual situation in time. 2、Multi Protection: This surge protector possesses multi protection, like overcurrent, overheating protection and temperature control and shirt circuit technology. 3、 Performance: This surge protector features low leakage current, quick response, low residual voltage and gap discharge electrode (N PE), you can choose it with confidence! 4、PC Material: The shell of the surge protector is made of PC material, which is flame retardant and corrosion resistant, it can effectively defend the protector. 5、Modular Design: This surge protector adopts modular design, which make it simple to install and portable. Specification： Item Type: DC Surge Protector Maximum Continuous Working Voltage: 1000VDC Discharge Current: 20KA(8/20μs) Maximum Discharge Current: 40KA(8/20μs) Limiting Voltage at Nominal Discharge Current: Less than or equal to 3.8KV Shell Material: Fireproof and flame retardant PC Installation: 35 Standard guide rail Protection Grade: IP20 Commodity Description: 1. This series of surge protector is applicable to TT and IT with AC 50, 60Hz, 1000V and below The IT S, TN CS and other power supply systems can be used as the equipotential connection at the interface between LPZ1, LPZ2 and LPZ3. The design basis is in accordance with for IEC61643 1 and for GB8802.1. The shell is designed to be installed on 35mm electrical guide rail. 2. The product has a built in failure release device. When the surge protector fails due to over current overheating and breakdown, the failure release device can automatically disconnect it from the power grid, and the visual warning indicator module changes from green (normal) to red (fault). The module with the protector can be replaced under working voltage. Package List： 1 x DC Surge Protector