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 , Moulded case breaker >> HM3(ABB-S,HSM1)

HM3(ABB-S, HSM1, HM3)Series Moulded Case Circuit Breakers

Product Features
HM3(ABB-S, HSM1,HM3)Series moulded case circuit breaker, It's applicable circuit of AC 50Hz(or 60Hz),rated insulation voltage 660V, rated operating voltage under AC 660V, 250V(DC), rated operating current 10A-800A,for distribute energy of electricity and infrequent making and breaking circuit. In normal conditions , the MCCB rated current under 400A they are provided with the function of the protection against overload and short circuit and undervoltage. The MCCB complies with standard of IEC947-2, GB14048.2, GB14048.4 and so on.
Type and meanings
Note: #8226;  No code for distribution breakers; "2" represents motor protection circuitbreakers.
         #8226;  No code for direct handle operation; "P" represents electrical operation,and "Z"  represents- rotary- operated- handles.
         #8226;  Rated breaking capacity grade of MCCB: E-Economical type S-Stan-dard type M-High breaking capacity type              H- Highest breaking capacity type.
Classification of MCCB
#8226;   Installation type of MCCB: MCCB are suiable for vertical or harizontal installation.
#8226;  According to use of MCCB: distribution circuit protection type, motor protection type
#8226;  According to connection way : front panel connection, back panel connection plug-in connection;
#8226;  According to operation way: for direct handle operation for external rotary handle operating, formotor operating;
#8226;  According to overload release type: magnetic release (only instantaneous) the modynamic magnetictype (dual), electronical release;
#8226;  According to number of poles: two poles, there poles, four poles.
#8226;  The neutral poles (N poles) of four poles MCCB has for types:
#8226;  Type A: no overload release on N pole, which is making at the time ; not closing and opening withthe other three poles.
#8226;  Type B: no overload release on N pole, which closing and opening with the other three poles
#8226;  Type C: with overload release on N pole, which closing and opening with the other three poles.
#8226;  Type D: with overload release on N pole, which making all time; not closing and opening with theother three poles.
#8226;  Type E: with a neutral pole interruption protector on N pole that closing or opening with other threepoles.
Main technical Specifications
Type
Rated
Cureent(A)
Pole No.
Rated
opreating voltage (V)
Ultimate short circuit breaking capacity(KA)
Short circuit breaking capacity(KA)
Operation
performance
(endurance)
Operation
performance
AC380V
(400)
AC660V
(690)
DC250
AC380V
(400)
Load
Unload
L
W(3P/4P)
H
HM3-125E
12.5,16,20,
25,32,40,50,
63,80,100,125

2P

3P

4P

】30
15
-
-
7.5
3000
7000
120
76/101
70
HM3-125S
25
-
20
16
HM3-160S
16,20,32,
40,50,63,80,
100,125,160
380V
660V
35
8
20
18
4000
6000
120
90/120
70
HM3-160H
50
10
40
25
HM3-250S
100,125,
160,180,200,
225,250
35
10
40
18
2000
6000
170
105/140
103.5
HM3-250M
50
16
40
30
HM3-250H
200,225,250
315,350,400
65
18
40
48
1000
4000
254
140/184
103.5
HM3-400S
35
16
40
18
HM3-400M
50
20
40
20
HM3-400H
65
25
40
48
HM3-630S
400,500,630
50
20
40
30
1000
4000
268
210/280
103.5
HM3-630M
65
25
40
48
HM3-630H
80
30
40
60
HM3-800S
500,630
700,800
50
20
40
30
1000
4000
268
210/280
103.5
HM3-800M
65
25
40
48
HM3-800H
80
30
40
60
Motion 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 circuit breaker) and table 3 (motor protection circuit breakers).
Table2
Rated current of release(A)

Thermodynamic Release
(ambient templand +40 ≧ marine +45≧)

Operational current of
magnetic release(A)
1.05In(cold state)
inoperative time(h)
1.30In(heat state)
operative time(h)
In+ 63
−1
< 1
10-50In\20%
63<In+ 250
−2
< 2
10In\20%
5-10In\20%
250<In+ 800
−2
< 2
Table3
Rated current of release(A)

Thermodynamic Release
(ambient templand +40≧ marine +45≧)

Operational current of
magnetic release(A)
1.0In(cold state)
inoperative time(h)
1.20In(heat state)
operative time(h)
1.50In(heat state)
operative time(h)
7.2In(cold state)
operative time(h)
12.5+In+ 400
2
2
+ 4min
2s<Tp+ 10s
12In\20%
Rotation handle operated mechanism
The rotation handle operated mechanism used in AM3 series MCCB ,meet the requirements(drawer chambers, distributor panel and power supply boxes )of set swithgear It can ensures the safety of equipment when the MCCB aare close .i.e it with panel door with handle in ON position ,may turn the Red release button in Rotation handle pedestal side


Shown in above fig. Hinge of panel door to handle centre R and breaker cover to cabinet panel H isminimum distances.
Motor operators
Motor operator are used to make or break the MCCB automatically in thedistance
Lock device
#8226;  With padlock front panel type is used by MCCB of fumish operating mecha-nism. (Applicable MCCB type: AM3-250~AM3-800) (MCCB) is "OFF" posi-tion when the locked device operated may avoid making of MCCB. It's rationthree unit padlock of diameter 6mm (user provide for oneself ). It's selectionunder following
#8226;  One "OFF" position lockTwo or more than two, "OFF" position lock of MCCB (MCCB group use thesame kind key).
Name of accessories
without accessories
alarm contact
shunt release
sht and alt
auxilary contact
aux and alt
undervoltage release
instantaneous release(Mag)
200
208
210
218
220
228
230
thermo-mag release
300
308
310
318
320
328
330

Name of accessories
UVT and alt
sht and aux
sht aux and alt
two auxilary contact
aux and one aux
aux and one alt
unx and one aux and alt
instantaneous release(Mag)
238
240
248
260
268
270
278
thermo-mag release
338
340
348
360
368
370
378

*  Alt i.e. Alarm contact Sht i.e.Shunt release UVT i.e. Undervoltage release AUX i.e. Auxilarycontact
*   Two auxiliary contact and alarm contact only supply by inm 630A and 800A
Working environment
The MCCB can be reliably operated under the following conditions
1. The altitude not exceeding 2000m;
2. The ambient temperature is from +40oC to -5oC;
3. Ambient envirohment freeing from explosive danger and air or dustwhich may cause corrosion of metal or weakness of insulation;
4. Ambient environment freeing from erosion of rain or snow;
5. Pollution degree 3;6. Installation category III.
Outline and installation dimensions

Front panel connection            Back panel connection


Plug-in connection front panel connection     Plug-in connection front panel connection

Plug-in connection back panel connection    
 

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