ZW8-12 is H.V outdoor switch equipment main used in used in breaking load Oved-load.Short-circuit current of city networkand Min,Power system The key strycures is three phase vacuum arc chamber.Lie in the matal carton. with the material of SMCandZW8A-12 is made up of ZW8-12 breaker and isolation blade With switchThe product’s operating mechanism ie CT23 spring energy-storing mechanism have handle and motor

Technical parameterNumber Name UnitParameter6.3KA 12.5KA 20KA1 Rated voltage KV 122 Max.working voltage KV 123 Rated current A 6304 Rated short-circuit load switch-off current KA 6.3 12.5 205 Rated peak withstand current KA 16 31.5 506 Rated peak withstand current KA 16 31.5 507 Rated short-tie 1min withstand current KA 6.3 12.5 208 Rated insulatorPower frequency with stand voltageKV42Lighting impulseresistingvoltage(peak)759 Rated operating oreder KV off-0.3S-on-off-180S-on-off10 Mechanical life 1000011 Breaking times of rated short-circuit swich-off curret 2012 Operating mechanism rated switch-on voltage V 110,22013 Operating mechanism rated switch-on current V 110,22014 Contact distance mm 11±1

2013-01-05

Circuit Breaker, switch