額定電壓 Rated voltage kV 12 24 額定頻率 Rated frequency Hz 50/60 50/60 額定短時(shí)工頻耐壓 Rated power-frequency withstand voltage kV 42 65 額定雷電沖擊耐壓 Rated lightning impulse withstand voltage kV 75 125 額定峰值耐受電流 Rated peak withstand current up to kA 63 50 額定短路關(guān)合電流 Rated short-circuit making current up to kA 63 50 額定短時(shí)耐受電流 Rated short-time withstand current 2 s up to kA 25 20 4 s up to kA 20 20 額定短路開斷電流 Rated short-circuit breaking current up to kA 25 20 額定母線電流 Rated normal current for busbar up to A 630 環(huán)境溫度 Ambient air temperature 不帶二次設(shè)備 Without secondary equipment °C -25/-40* to +70 帶二次設(shè)備 With secondary equipment °C -5/-15*/-25* to +55 存儲(chǔ) / 運(yùn)輸 Storage/transport °C -40 to +70 防護(hù)等級(jí) Degree of protection 一次部分 Primary part IP67 柜體外殼 Switchgear IP2X / IP3X 二次部分 Secondary part IP3X / IP4X 內(nèi)部燃弧等級(jí)* IAC* 靠墻安裝 Wall-standing arrangement A FL up to 21kA (1s) 自由安裝* Free-standing arrangement* A FLR up to 21kA (1s)