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| 3VL Mould Case Circuit Breaker (MCCB) |
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| Application |
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3VL series MCCB is one of our new product developed and manufactured by adopting international advanced technology.It is supplied with rated insnlating voltage 690V and used for circuit of A.C.50/60Hz,rated operating voltage A.C. 415V or below,rated operating current from 16A to 250A.It is designed for protection of electric circuit,motors,transformers and other eguipments.The products conforms to GB14048.4,IEC60947-1,IEC60947-2 & VDE0660 standards. |
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| Trip Charactristic Of |
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The thermodynamic release of the breaker has the advantages of inverse time-delay while the instantaneous operation as shown on table 1 (distribution circuit breaker) and table 2 (motor protection circuit breaker). |
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Table 1 |
Rate current of release
(A) |
Thermodynamic release(ambient temp+40℃)
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operaed current of magnetic release(A) |
| 1.05In(cold state )inoperative time(h) |
1.30In(heat state) operative time(h) |
| In≤63 |
≥1 |
<1 |
10In±20% |
| 63<In≤100 |
≥2 |
<2 |
10In±20% |
| 100<In≤630 |
≥2 |
<2 |
5-10In±20% | |
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Table 2 |
Rated Current of
release(A) |
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Operaed 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% | |
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| Main Technical Specifications |
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| Type |
Rated Current
(A) |
Pole
number |
Ultimate Short Circuit
Breaking capacity(KA) |
Servies Short Circuit
Breaking Capacity(KA) |
Operation
performance |
| ON |
OFF |
| 3VL-160D |
16,20,25,32,
40,50,63,80,
100,125,160 |
Three Pole,
four pole |
25 |
25 |
4500 |
10000 |
| 3VL-160N |
30 |
30 |
| 3VL-160H |
70 |
70 |
| 3VL-160L |
100 |
100 |
| 3VL-250N |
200,225,250 |
35 |
35 |
4000 |
8000 |
| 3VL-250H |
70 |
70 |
| 3VL-250L |
100 |
100 | |
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Rated InsulationVoltage:690V
Rated Opreating Voltage:380/415V
Arcing-Over Distance:100mm | |
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