Circuit Breaker>>Mould Case Circuit Breaker>>AM1 Series
1. Application
AM1 series moulded case circuit breaker is one of products developed and manufactured byadopting international advanced technology. It is supplied with rated insulating voltage 800Vand used for circuit of A.C. 50Hz, rated operating voltage AC 400V (or below), rated operatingcurrent up to 800A for infrequent changing over and starting of the motors.The products con-forms to IEC60947-2 standard.
2. Main Technical Specification
Table1
Type |
Rated current (A) |
Pole |
Ratedinsui-atingvolt-age(V) |
Rated operat-ingvolt-age(V) |
Arcing- over distance (mm) |
Ultimate short circuit breaking capacity (KA) |
Servies short circuit breaking capacity (KA) |
AM1-63L |
(6),10 16,20 25 ,32 40,50 63 |
3, 4 |
500V |
400V |
0 |
25 |
18 |
AM1-63M |
0 |
50 |
35 |
||||
AM1-100L |
(10),16 20,25 32,40 50,63 80,100 |
800V |
0(≤50) |
35 |
22 |
||
AM1-100M |
0(≤50) |
50 |
35 |
||||
AM1-100H |
0(≤50) |
85 |
50 |
||||
AM1-225L |
100,125 160,180 200,225 |
≤50 |
35 |
22 |
|||
AM1-225M |
≤50 |
50 |
35 |
||||
AM1-225H |
≤50 |
85 |
50 |
||||
AM1-400L |
225,250 315,350 400 |
≤50 |
50 |
35 |
|||
AM1-400M |
≤100 |
65 |
42 |
||||
AM1-630L |
400,500 630 |
≤100 |
50 |
35 |
|||
AM1-630M |
≤100 |
65 |
42 |
||||
AM1-630H |
≤100 |
100 |
65 |
||||
AM1-800M |
630,700 800 |
3 |
≤100 |
75 |
50 |
||
AM1-800H |
≤100 |
100 |
65 |
||||
AM1-1250M |
1000,1250 |
≤100 |
100 |
65 |
|||
AM1-1250H |
≤100 |
125 |
5 |
Note: 6A no thermal protection The N-pole of four-poles breaker is sifed at the right side of the product has four types: Type A: No current trip-lease on N pole which making all the time, not closing and opening with the otherthree poles. Type B: No current trip-release on N pole which closing and opening with the other poles. Type C: With current trip-release which closing and opening with the other three poles. Type D: With current frip-release which making all the time not closing and opening with the other threepoles.
3. Protection Characteristic
The thermodynamic release of a circuit breaker provides the feature of inverse time-delay,while the magnetic release is the instantaneous operation as shown on table 2(distribution cir-cuit breaker) and table 3 (motor protection circuit breaker).
Table2
Rated current ofrelease (A) |
Thermodynamic release ( ambient temp ) |
Operationalcurrent ofmagneticrelease (A) |
|
1.05In(cold state) Inoperative time(h) |
1.30In (heat state) Operative time(h) |
||
10≤In≤63 |
≥1 |
< 1 |
10In±20% |
225≤In≤630 |
≥2 |
< 2 |
|
100≤In≤800 |
≥2 |
< 2 |
5In±20% |
Table3
Rated current ofrelease (A) |
Thermodynamic release( ambient temp ) |
Operationalcurrent ofmagneticrelease (A) |
|||
1.0In (cold state) |
1.20In(heat state) Operative time (h) |
1.50In(heat state) Operative time (h) |
7.2In(cold state) Operative time(h) |
||
10≤In≤225 |
≥2 |
<2 |
≤4min ≤8min |
4s< Tp ≤10s 6s< Tp ≤20s |
12In±20% |