ZN28-12
Serial number
item
unit
parameter
01
Rated voltage
KV
24
02
Rated short-term frequency voltage
KV
65
03
Lighting impluse withstand voltage
KV
125
04
Rated frequency
HZ
50/60
05
Rated current
A
630,1250 630,1250 1600,2000,3150
06
Rated short-circuit breake current
KA
20 25 31.5
07
Rated short-time withstand current
KA
20 25 31.5
08
Rated peak withstand current
KA
50 63 80
09
Rated short-circuit close current
KA
50 63 80
10
Rated sigle/back to back capacator breaking current
A
630/400
11
Rated short-circuit current duration
s
4
12
Rated short-circuit current break and close time
times
50
13
Rated operation order
O-t-Co-180s-CO
14
Rated operation voltage
220/110
15
Mechanical life
times
20000
16
Swithing distance of the contact
mm
17
Ultra journey
mm
18
Time of contactor closing bounce
ms
19
Three-phase breaking into shut floodgate sex of the same period
ms
20
Average speed o fbreaking brake
m/s
1.1~1.7
21
Speed of closing brake
M/s
0.6~1.1
22
Time of breaking brak
MS
20~50
23
Time of closing brake
Ms
35~70
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