Features Safe protection: the maximum continuous working voltage of 1000 V DC Uc ensures easier operation of the circuit and higher efficiency. 【Good Durability】: Due to the use of flame retardant PC materials with modular structure, the voltage arrester is very durable for long-term use. 【Easy to install】: standard 36mm rail mounting allows stable working performance in combination with distribution box and circuit breaker. 【Reliable working】: with 20kA rated discharge current In and 40kA maximum discharge current Imaximum to ensure the electrical safety. 【Surge Protection】: When an overvoltage occurs in the system due to lightning strikes or other reasons, the protector immediately opens quickly within nanoseconds and introduces the overvoltage into the ground to protect the electrical equipment Specification: Item Type: Surge Protection Model: LT1 40 Material: flame retardant PC material. Maximum continuous working voltage Uc: 1000V DC Rated Discharge Current In: 20kA (8/20μs) Maximum discharge current Imaximum: 40kA (8/20μs) Voltage protection level higher: ≤2.0 kV Poland: 3P Installation: 36 mm/1.42 inch (approximately) rail. Protection class: IP20 Working temperature: -40°C ~ 80°C, humidity: ≤90% (average 25°C). Package List: 1 x Surge Protector Note: 1. Power must be turned off before installation, and live use is strictly prohibited.2. During installation, connect as shown in the installation diagram, where + is the positive wire, and - the negative wire. Don't make wrong hookups. After the installation is complete, close the switch of the automatic circuit breaker or fuse and check that the working status is normal. Package List 1 x Surge Protective Device