China Suppliers CNKA (Company Brand) offers bulk 400 amp automatic transfer switches, which integrate switching functions with logic control for true electromechanical integration. Designed for use in AC50Hz distribution systems with a rated voltage of AC400V and conventional thermal current up to 3200A, these switches are ideal for use in industries such as mining. The 400 amp automatic transfer switch includes features like voltage detection, forced switching off to the “0” position, and manual emergency operation. It is widely used for switching between normal and standby power, managing two loading devices, or performing safe isolation. The control circuit board sends logic commands to the motor, which then drives the main switch’s operating mechanism to quickly open, close, or shift lines. The main switch’s safe isolation is clearly visible.
|
Rated heating current(A) |
100 |
160 |
250 |
400 |
630 |
1000 |
1250 |
1600 |
2000 |
2500 |
3200 |
|
|
Rated insulation voltage Ui (V) |
750 |
|
1000 |
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|
Rated working voltage(Ue) |
AC400V |
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|
Rated impact withstand |
8 |
|
12 |
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|
Rated |
AC-31A |
100 |
160 |
250 |
400 |
630 |
1000 |
1250 |
1600 |
2000 |
2500 |
3200 |
|
AC-35A |
100 |
160 |
250 |
400 |
630 |
1000 |
1250 |
1600 |
2000 |
2500 |
3200 |
|
|
AC-33A |
100 |
160 |
250 |
400 |
630 |
1000 |
1250 |
1600 |
2000 |
2500 |
3200 |
|
|
Rated short-time withstand |
7 |
9 |
13 |
|
50 |
|
55 |
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|
Rated limit short-circuit |
100 |
70 |
100 |
120 |
80 |
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|
Grade |
PC Class |
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|
Standard |
IEC947-6-1 GB14048.11-2008 |
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|
Rated connecting capacity |
10le |
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|
Rated breaking capacity (A |
8le |
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|
Control supply voltage(V) |
DC24V,48V,110V,AC220V |
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|
Convenrsion time(S) |
0.5 |
1 |
1.1 |
1.2 |
1.25 |
2.45 |
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1 Electric Key Lock: Manages the internal control line power of the switch. When the electric lock is engaged, the switch can operate automatically, including forced "0" position operations. When the electric lock is disengaged, the switch can only be operated manually.
2 Operating Handle: To manually operate the switch with the handle, the electric lock must be disengaged.
3 Padlock: For maintenance, first use the operating handle to set the switch to the "0" position, then engage the padlock mechanism. This ensures the switch is secured and can be safely serviced.
4 Indicator: Displays the operational status of the switch.
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Product size and installation size |
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|
In |
A |
A1 |
B |
B1 |
C |
E |
G |
J |
K |
L |
N |
P |
R |
S |
T |
U |
W |
X |
Y |
Y1 |
|
100A/3 |
235 |
232 |
106 |
105 |
134 |
133 |
115 |
221.5 |
84 |
7 |
74.5 |
30 |
14 |
18 |
2.5 |
105 |
126 |
6 |
36 |
86 |
|
100A/4 |
247 |
244 |
106 |
105 |
134 |
133 |
115 |
233.5 |
84 |
7 |
74.5 |
30 |
14 |
18 |
2.5 |
105 |
126 |
6 |
36 |
86 |
|
125A/3 |
292 |
270 |
135 |
128 |
230 |
189 |
145 |
254 |
102 |
7 |
91 |
36 |
20 |
25 |
3.5 |
127 |
158 |
9 |
55 |
125 |
|
125A/4 |
322 |
300 |
135 |
128 |
230 |
189 |
145 |
284 |
102 |
7 |
91 |
36 |
20 |
25 |
3.5 |
127 |
158 |
9 |
55 |
125 |
|
160A/3 |
292 |
270 |
135 |
128 |
230 |
189 |
145 |
254 |
102 |
7 |
91 |
36 |
20 |
25 |
3.5 |
127 |
158 |
9 |
55 |
125 |
|
160A/4 |
322 |
300 |
135 |
128 |
230 |
189 |
145 |
284 |
102 |
7 |
91 |
36 |
20 |
25 |
3.5 |
127 |
158 |
9 |
55 |
125 |
|
250A/3 |
356 |
312 |
170 |
142 |
261 |
208 |
145 |
293 |
102 |
7 |
91 |
50 |
25 |
30 |
3.5 |
142 |
168 |
11 |
60 |
145 |
|
250A/4 |
406 |
362 |
170 |
142 |
261 |
208 |
145 |
343 |
102 |
7 |
91 |
50 |
25 |
30 |
3.5 |
142 |
168 |
11 |
60 |
145 |
|
400A/3 |
487 |
368 |
260 |
222 |
284 |
273 |
189 |
351 |
180 |
9 |
93 |
65 |
32 |
40 |
5 |
222 |
203 |
11 |
83 |
193 |
|
400A/4 |
552 |
433 |
260 |
222 |
284 |
273 |
189 |
416 |
180 |
9 |
93 |
65 |
32 |
40 |
5 |
222 |
203 |
11 |
83 |
193 |
|
630A/3 |
487 |
368 |
260 |
222 |
284 |
273 |
189 |
351 |
180 |
9 |
93 |
65 |
40 |
50 |
6 |
222 |
203 |
12 |
83 |
193 |
|
630A/4 |
552 |
433 |
260 |
222 |
284 |
273 |
189 |
416 |
180 |
9 |
93 |
65 |
40 |
50 |
6 |
222 |
203 |
12 |
83 |
193 |
|
800A/3 |
646 |
519 |
357 |
250 |
363 |
350 |
443 |
499 |
220 |
11 |
87 |
120 |
60 |
69 |
8 |
250 |
207 |
12.5 |
109 |
254 |
|
800A/4 |
760 |
633 |
357 |
250 |
363 |
350 |
443 |
613 |
220 |
11 |
87 |
120 |
60 |
69 |
8 |
250 |
207 |
12.5 |
109 |
254 |
|
1000A/3 |
646 |
519 |
357 |
250 |
363 |
350 |
443 |
499 |
220 |
11 |
87 |
120 |
60 |
69 |
8 |
250 |
207 |
12.5 |
109 |
254 |
|
1000A/4 |
760 |
633 |
357 |
250 |
363 |
350 |
443 |
613 |
220 |
11 |
87 |
120 |
60 |
69 |
8 |
250 |
207 |
12.5 |
109 |
254 |
|
1250A/3 |
646 |
519 |
357 |
250 |
363 |
350 |
443 |
499 |
220 |
11 |
87 |
120 |
80 |
69 |
8 |
250 |
207 |
13 |
110 |
255 |
|
1250A/4 |
760 |
633 |
357 |
250 |
363 |
350 |
443 |
613 |
220 |
11 |
87 |
120 |
80 |
69 |
8 |
250 |
207 |
13 |
110 |
255 |
|
1600A/3 |
646 |
519 |
357 |
250 |
363 |
350 |
443 |
499 |
220 |
11 |
87 |
120 |
80 |
69 |
10 |
250 |
207 |
13 |
110 |
255 |
|
1600A/4 |
760 |
633 |
357 |
250 |
363 |
350 |
443 |
613 |
220 |
11 |
87 |
120 |
80 |
69 |
10 |
250 |
207 |
13 |
110 |
255 |
|
2000A |
800 |
633 |
460 |
|
542 |
|
447 |
610 |
|
|
84.5 |
|
80 |
120 |
10 |
|
|
|
|
169 |
|
2500A |
800 |
633 |
460 |
|
542 |
|
447 |
610 |
|
|
84.5 |
|
80 |
125 |
15 |
|
|
|
|
174 |
|
3200A |
800 |
633 |
460 |
|
542 |
|
447 |
610 |
|
|
84.5 |
|
80 |
130 |
20 |
|
|
|
|
179 |
Address
Jingtai Testing Equipment, Xiangyang Industrial Zone, Liushi Town, Leqing City, Wenzhou City, Zhejiang Province
Tel
