KYN28A-12 Metal-clad and Metal-enclosed Switchgear

KYN28A-12 Metal-clad and Metal-enclosed Switchgear Model . K---------------------------------------metal-clad and metal-enclosed switchgear Y---------------------------------------withdrawable N---------------------------------------Indoor 28A (GZS1-12)--------------------design No. 12--------------------------------------rated voltage (KV) --------------------------------------primary plan No. --------------------------------------operating mechanism characteristic code D: electromagnetism T: spring --------------------------------------rated current (A) --------------------------------------rated short circuit drop-out current (KA) . General . KYN28A-12 central metal-clad and metal-enclosed switchgear is produced independently based on the advanced manufacturing technique from home and abroad. It can be used to replace all sorts of old metal-enclosed switchgears The shell adopts the aluminum-zinc alloy coated steel sheet, processed by CNC machining tool, which ensure the high mechanical strength. The door is anti-corrosion and anti-impact coaedt. And the protection degree is IP4X The main switch can be with the ZN63A (VSI) type of circuit breaker of this company, C3 series of fixed load switch; it is also with the interface communication. The insulation distance is over 125mm, composite insulation is over 60mm. all the circuit breakers have the features of long working life, high parameters, less maintenance, small size and so on.. . Main technical parameters . item Unit Parameters rated voltage KV 12 rated current HZ 50 rated current of circuit breaker A 630\2000 rated current of switch cabinet A 630\2000 rated current of dynamic stability (4S) KA 16\20\25\31.5\40\50 rated current of dynamic stability (peak) KA 40\50\63\80\100\125 rated short circuit drop-out current KA 16\20\25\31.5\40\50 rated short circuit making current (peak) KA 40\50\63\80\100\125 Rated insulation level 1min power frequency withstand voltage KA 24 32 42 lighting impulse withstand voltage KA 40 60 75 protection degree IP2X shell: IP4X, it is IP2X when compartment and circuit breaker room is open