Description Place of Origin : China Brand Name : Chint Model Number : NXA Breaking Capacity : 20kA – 100kA Rated Voltage : 380V – 690V Rated Current : 400A – 6300A Number of Pole : 3P, 4P Protection : Other Type : Air Chint original NXA ACB 3P 4P NXA16 NXA20 NXA32 NXA40 NXA63 1600A 2000A 2500A 3200A 4000A 6300A CHNT Chint Air Circuit Breaker   China NXA Air Circuit Breaker   Frame size (A): 1600, 2000, 3200, 4000Breaking capacity: N,S,HRated operational voltage Ue (VAC): 380/400/415, 440/525/690Number of poles: 3P, 4PInstallation method: draw-out type, fixed type   Operation temperature:     The electrical and mechanical characteristics are applicable to the ambient temperature of -5℃- 40℃. NXA can also operated in the ambient temperature of -45℃- 70℃ (M type, A type), -20℃- 70℃ (P type, H type, CD-1).Storage conditions: apply to -45℃~ 70℃NXA can resist the following electromagnetic interference     Overvoltage generated by electromagnetic interference     Overvoltage caused by environment interference or a power distributing system     Electrostatic discharge of radio waves (radio, intercom, radar and the like)NXA has successfully passed the test for electromagnetic compatibility specified according to the following standards (EMC)  IEC/EN 60947-2 Annex F The test can guarantee no false tripping and no interference on tripping timeProtection grade: Front IP 20, other side IP 00