ZN63A-12 12kv high voltage indoor vacuum circuit breaker 1250A
Basic Info
Model No.: ZN63A-12
Product Description
ZN63A-12 12kv high voltage indoor Vacuum Circuit Breaker
$1$
TECHNICAL DATA:
NO. | Item | Unit | data | |||
1 | Rated voltage | KV | 12 | |||
2 | Highest working voltage | KV | 12 | |||
3 | Rated lighting implus withstand voltage(peak) | KV | 75 | |||
4 | Rated frequency | HZ | 50 | |||
5 | Rated current | A | 630 1250 | 630 1250 1600 2000 2500 3150 | 1250 1600 2000 2500 3150 4000 | |
6 | Rated short-circuit breaking current(Rated thermal stability current - RMS) | KA | 20/25 | 31.5 | 40 | |
7 | Rated short-circuit making current(peak) | KA | 50/63 | 80 | 100 | |
8 | Rated Peak withstand current(Rated dynamic current - peak) | KA | 50/63 | 80 | 100 | |
9 | Rated short-time withstand current(4s) | KA | 20/25 | 31.5 | 40 | |
10 | Overtravel | mm | 3.5±1.05 | |||
11 | Dominant loop resistance | To the ground 75(Breaker fracture85) | ||||
12 | Rated thermal stability time | s | 4 | |||
13 | Rated operation ranking | O-0.3SNO-180S-NO,O-180S-NO-180S-NO(50KA_ | ||||
14 | Rated short circuit breaking current breaking times | times | 50(40ka 30,50ka 20) | |||
15 | Rated single/back-to-back capacitor bank breaking current | A | 40KA(630/400) 50KA(800/400) | |||
16 | Mechnical life | times | 20000 | |||
17 | Operating mechanism rated closing voltage(DC) | v | DC110/220 AC110/220 | |||
18 | Operating mechanism rated opening voltage(DC) | v | DC110/220 AC110/220 | |||
19 | Rated contact stroke | mm | 11±1 | |||
20 | overtravel(Contact spring compression length) | mm | 3.5±0.5 | |||
21 | three pole closing opening bouncing operation | ms | ≤2 | |||
22 | Contact bouncing duration at closing contact | ms | ≤2 | |||
23 | Average opening speed | m/s | 0.9~1.3 | |||
24 | Average closing speed | m/s | 0.4~0.8 | |||
25 | Closing contact contact pressure | N | 25KA | 31.5KA | ||
26 | 2200±200 | 3200±200 | ||||
27 | contact ersion limit | mm | 3 |
DRAWING:
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2. According to the customer's requirement ,different specifications of the items can be mixed shipments and lower freight.
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Product Categories : Vacuum Circuit Breaker
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