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| Home >>> Products >>> Earth Leakage Circuit Breaker >>> CDSM3 Series Moulded Case Circuit Breakers |
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INTRODUCTION AND APPLICATIONS
CDSM3 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,
CLASSIFICATION OF MCCB
Installation type of MCCB:MCCB are suitable for vertical or horizontal Installation.
According to use of MMC:distribution circuit protection type motor protection type;
According to connection way:Front panel connection,Back panel connection,Plug-in connection;
According to operation way:for direct handle operating.for external ro tary handle op erating;fo r
motor operating.
According to overload release type:magnetic release(only instantanous)the modynamic
magnetic type(dual)
According to number of poles:Two poles,Three ploes,Four ploes;
The neutral pole(N pole)of four pole MCCB has five type;
Type A:No overload release on N pole,which is making at all time;not closing and opening with
the other three poles.
Type B:No overload release on N pole.which closing and opening with the other three poles.
Type C:with overload release on N pole.which closing and opening with the other three poles.
Type D:with overload release on N pole.which making all time;not closin g and opening wi th
the other three poles.
Type E:with a neutral pole interruption protector on N pole that closing or opening with other
three poles. |
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| MAIN TECHNICAL SPECIFICATIONS: |
| Type |
Rated
Current(A)
|
Pole
number |
Rated
insula
-ting
Voltage
(V) |
Rated
Opera
-ting
Voltage
(V) |
Arcing
-Over
Distance
(mm) |
Ultimate Short Circuit
Breaking Capacity(KA) |
Servies Short
Circuit Breaking
Capacity(KA) |
Operation
performance
(Endurance) |
Overall dimensions |
AC380
V
(400) |
AC660
v
(690) |
DC250 |
AC380
v
(400)
|
AC660
v
(690) |
Load |
Unload |
L |
W
(3P/4P) |
H |
| CDSM3-125E |
1,2.5,16,
20,25,32,
40,50,63,
80,100,125 |
Two
Three
four
pole |
660V |
380V
660V |
】30 |
15 |
！ |
！ |
7.5 |
！ |
3000 |
7000 |
120 |
76/101 |
70 |
| CDSM3-125S |
|
25 |
！ |
20 |
16 |
！ |
| CDSM3-160S |
16,20,25,32,
40,50,63,80,
100,125,160 |
35 |
8 |
20 |
18 |
！ |
4000 |
6000 |
120 |
90/120 |
70 |
| CDSM3-160H |
50 |
10 |
40 |
25 |
！ |
| CDSM3-250S |
100,125,
160,180,
200,225,
250 |
35 |
10 |
40 |
18 |
！ |
2000 |
6000 |
170 |
105/140 |
130.5 |
| CDSM3-250N |
50 |
16 |
40 |
30 |
！ |
| CDSM3-250H |
65 |
18 |
40 |
48 |
！ |
| CDSM3-400S |
200,225,
250,315,
350,400 |
35 |
16 |
40 |
18 |
！ |
1000 |
4000 |
254 |
140/184 |
130.5 |
| CDSM3-400M |
50 |
20 |
40 |
30 |
！ |
| CDSM3-250H |
65 |
25 |
40 |
48 |
！ |
| CDSM3-630S |
400,
500,
630 |
50 |
20 |
40 |
30 |
！ |
1000 |
4000 |
268 |
210/280 |
130.5 |
| CDSM3-630M |
65 |
25 |
40 |
48 |
！ |
| CDSM3-630H |
80 |
30 |
40 |
60 |
！ |
| CDSM3-800S |
500,
630,
700,
800 |
50 |
20 |
40 |
30 |
！ |
1000 |
4000 |
268 |
210/280 |
130.5 |
| CDSM3-800M |
65 |
25 |
40 |
48 |
！ |
| CDSM3-800H |
80 |
30 |
40 |
60 |
！ |
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TRIP CHARACTRISTIC OF MCCB
The thermodynamic release of the breaker has the advantages of inverse time-delay while the
instantaneous operation as shown on table 2(distribution circuit breaker)and table 3(motor
portection circuit breaker).
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