Wuhan Feite Electric Co.,Ltd

We offer vacuum interrupter for contactor rated voltage 3.6kv rated current 250400630a rated frequency 50hz rated short-time power frequency withstand voltage (1min) 21kv rated lightring impulse withstand voltage (1 min) 40kv rate making current 2.54.06.3ka rate breaking current, max 2.03.25.0ka rate breaking current, min 5080125a rated making current, limit 2.54.06.3ka rated short-time withstand current 2.54.06.3ka rated duration of short-circuit 4s mechanical life 30*104 times electricity life ac-3 25*104 times electricity life ac-4 10*104 times rated contact stroke 3±0.5mm contact closing force due to bellows and atmosphere 70±30n conterforce at rated contact stroke 110±40n circuit resistance at rated contact atmosphere force ≤60μω shelf life 20 years contact erosion limit 3mm weight of moving parts ≤0.4kg mechanical data required for matched vacuum switchgear added contact force 110±10n average opening speed 0.6±0.2ms average closing speed 0.3±0.1s contact bouncing duration at closing operation ≤2ms contact bouncing bank amplitude of opening operation ≤2mm three-pole simultaneity ≤1ms note:rated characteristics can be customised on requirment.

Low and high voltage ceramic vacuum interrupter for outdoor circuit breaker main technical data rated voltage kv 40.5 rated current a 16002000 rated frequency hz 50 rated short-time power frequency withstand voltage(1min) kv 95 rated lighting impulse withstand voltage kv 185 rated short-circuit breaking current ka 2531.5 rated short-circuit making current(peak) ka 6380 rated operations of short-circuit breaking current interruption times 20 rated single capacitor bank breaking current a 400 rated short-time withstand current ka 2531.5 rated peak withstand current ka 6380 rated duration of short-circuit s 4 mechanical life times 10000 contact closing force due to bellows and atmosphere n 250±50 counterforce at rated contact stroke n 330±60 circuit resistance at rated contact force μω ≤20 shelf life years 20 contact erosion limit mm 3 weight of moving parts kg ≤4 mechanical data required for matched vacuum switchgear rated contact stroke mm 22±2 average opening speed ms 1.6±0.2 average closing speed ms 0.75±0.2 added contact force n 3100±200 contact bouncing duration at closing operation ms ≤2 contact bouncing bank amplitude of opening operation ms ≤4 three-pole simultaneity ms ≤2 note:rated characteristics can be given on requirment.