▲适用范围
适用于额定频率50/60Hz，额定电压230/400VAC的主配电柜或分配电柜(LPZ0b-LPZ1区或LPZ1-LPZ2区)，
对电源第I或II级的雷击或浪涌引起的过电压进行保护，减轻过电压对设备造成的损害。
选型依据标准：GB/T18802.11(IEC/61643-11),GB50343
| 型号 | 货号 | 描述 |
| LDY-40B+C/1P-385 | CY603043 | Uc: 385V~,In(8/20μs):40kA,T2,1P |
| LDY-40B+C/2P-385 | CY603044 | Uc: 385V~,In(8/20μs):40kA,T2,2P |
| LDY-40B+C/3P-385 | CY603045 | Uc: 385V~,In(8/20μs):40kA,T2,3P |
| LDY-40B+C/4P-385 | CY603046 | Uc: 385V~,In(8/20μs):40kA,T2,4P |
| LDY-40B+C/1P-385H | CY603090 | Uc:385V~,Iimp(10/350μs):12.5kA,T1+T2,1P |
| LDY-40B+C/2P-385H | CY603091 | Uc:385V~,Iimp(10/350μs):12.5kA,T1+T2,2P |
| LDY-40B+C/3P-385H | CY603092 | Uc:385V~,Iimp(10/350μs):12.5kA,T1+T2,3P |
| LDY-40B+C/4P-385H | CY603093 | Uc:385V~,Iimp(10/350μs):12.5kA,T1+T2,4P |
▲主要技术参数
电网额定电压 (Un): 230V/400V~
额定频率：50/60Hz
zui大持续工作电压 (Uc): 385V~
标称放电电流 (In@8/20μs): 40kA(T2)
zui大放电电流 (Imax@8/20μs): 80kA(T2)
冲击电流 (Iimp@10/350μs): 12.5kA (H型，T1)
电压保护水平 (Up) : 2.2kV
泄漏电流(@75%U1mA): ＜20μA
试验类别: T2/T1+T2(H型)
工作温度: -40°C ~ 80°C
相对湿度(25°C): ≤95%(无凝露)
后备保护断路器: LDYB-80
