 AM3-125L/3P
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1. Application
AM3 series moulded case circuit breaker, it's applicable circuit of AC 50Hz(or 60Hz),rated insulation voltage 690V(AM3-125 500V),rated operating voltage AC 690V or below,rated oper-ating current 12.5-1600A, for distribute energy of electric and infrequent making and breaking circuit in normal condition. The circuit-breakers are provided with the function of the protection against overload and short circuit and under-voltage. The circuit breakers comply with standard of IEC60947-2.The circuit-breakers are double insulating (Inm=250A or above), the control circuit of the accessories is set apart with the main circuit, and doesn't need to open the cover of the circuit-breaker when install the accessories.
2. Specification Table 1
| Type |
Pole number |
Rated insulating voltage (V) |
Rated operating voltage (V) |
Ultimate short circuit breaking capacity Icu(KA) |
Rated short-circuit serrice breaking capocity Ics(%icu) |
Utilization category |
| AC380V (400) |
AC660V (690) |
| AM3-125L |
1,2,3,4 |
500 |
500 |
25 |
- |
50% |
A |
| AM3-160L |
3,4 |
690 |
690
and
below |
35 |
8 |
75% |
| AM3-160M |
50 |
10 |
75% |
| AM3-250L |
800 |
35 |
14 |
100% |
| AM3-250M |
65 |
18 |
75% |
| AM3-250H |
85 |
20 |
75% |
| AM3-400L |
35 |
18 |
100% |
| AM3-400M |
65 |
22 |
100% |
| AM3-400H |
100 |
30 |
75% |
| AM3-630L |
35 |
20 |
100% |
| AM3-630M |
50 |
22 |
100% |
| AM3-630H |
65 |
25 |
100% |
| AM3-800L |
35 |
20 |
100% |
| AM3-800M |
50 |
22 |
100% |
| AM3-800H |
65 |
25 |
100% |
| AM31250/1600L |
3 |
50 |
20 |
100% |
3. Trip units main technical parameter (see table 2)
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