ZN12-40.5 Product Overview ZN12-40.5-breaker is a three-phase AC 50Hz, rated voltage of 40.5kV indoor unit. The body design and the interrupter circuit breaker system into one dedicated Siemens 3AF type spring operating mechanism, the use of dual-motor DC energy storage operations, can also be used for manual operation. The product design: 350mm, 400mm, 460mm, and other phase distance, users with different types of switchgear easier to use. Can be used in a fixed cabinet XGN17-40.5 can also be used in JYN1-40.5, KYN10-40.5 cabinet. ZN12-40.5 use of environmental conditions: 1, ambient air temperature: up to + 40 ℃, the lower limit of -10 ℃, alpine region -25 ℃ 2, altitude: 1000m; 3, relative humidity: daily average of not more than 95%; monthly average of less greater than 90%; (+ 25 ℃); saturated vapor pressure: daily average of less than 2.2 × 10-3MPa, monthly average of less than 1.8 × 10-3MPa, 4, Zhen Fu: seismic intensity does not exceed 8 degrees; 5, NA flammable, explosion, chemical corrosion and severe vibration. ZN12-40.5 technical parameters: ZN12-40.5-breaker is a three-phase AC 50Hz, rated voltage of 40.5kV indoor unit. The body design and the interrupter circuit breaker system into one dedicated Siemens 3AF type spring operating mechanism, the use of dual-motor DC energy storage operations, can also be used for manual operation. The product design: 350mm, 400mm, 460mm, and other phase distance, users with different types of switchgear easier to use. Can be used in a fixed cabinet XGN17-40.5 can also be used in JYN1-40.5, KYN12-40.5 cabinet. ZN12-40.5 ★★ can be used in a fixed cabinet XGN17-40.5, but also in JYN1-40.5, KYN10-40.5 cabinet Item Unit Parameter 1 Rated voltage kV 40.5 2 Rated current A 1250 1600 2000 3 rated short-circuit breaking current kA 25 31.5 4 dynamic current (peak) kA 63 80 5 4s thermal current kA 25 31.5 6 rated short-circuit current (peak) kA 63 80 7 rated short-circuit current breaking times 208 minutes Rated operating sequence -0.3s- combined nine points -180s- combined points Rated lightning impulse withstand voltage (full wave) kV 185 10 1min power frequency withstand voltage kV 95 11 Closing time ms 50-85 12 Opening time ms 40-85 13 Mechanical life 30,000 times 14 rated short-circuit current breaking times 3015 storage motor rated power W 275 16 time s ≤15 17 storage tank rated motor voltage V ≌110 ≌220 18 points off solenoid rated voltage V ≌110 ≌220 19 missing Pressure Release rated voltage V ≌110 ≌220 20 overcurrent release Rated current A 5 21 shop help switch rated A AC110, DC5 22 contacts allow cumulative thickness of wear mm 3 www.zw20-12f.com.cn