This Multi9 product is a cartridge for PRD1 75r surge protection device. The Imax maximum discharge current is 75kA. The In nominal discharge current is 20kA. The Uc maximum continuous operating voltage is 320VAC. The maximum Up voltage protection level is 1000V. It can be plugged into a surge protecting device module. Its width is 2 pitches of 9mm. The product color is light grey (RAL 7035). The dimensions are (W) 17.5mm x (H) 45mm x (D) 68.5mm. The degree of protection is NEMA 1. The operating temperature is -25°C to 60°C. The storage temperature is -40°C to 85°C. It is compliant withUL 1449 standard.