KNM3 Series moulded-case circuit-breakers guarantee an extremely high performance level while being progressively smaller in size, simple to install and able to provide increasingly better safety guarantees for the operator.
KNM3 Series Moulded-case circuit-breakers can be used in low voltage civil and industrial installations with 1 to 3200 A operating current.
Since assembly instructions are simple, trip units can quickly and easily be replaced; even in the field.
All this makes the circuit-breakers very easy to operate with considerable savings due to rationalized stock management.
This product complies with standard IEC60947-2, GB14048.2
Molded Case Circuit Breaker
Small Size Molded Case Circuit Breaker
Electrical Molded Case Circuit Breaker
Automatic Molded Case Circuit Breaker
MCCB
| NO. | testing current name
| I/In | Assumed time | Starting
situation |
| 1 | Assumed un-
tripping current | 1.05 | 2h(In>63A),
1h(In≤63A) | Cold state |
| 2 | Assumed tripping
current | 1.30 | 2h(In>63A),
1h(In≤63A) | Start right |
| Type | KNM3-125N | KNM3-160N | KNM3-250N | KNM3-400N | KNM3-630N | KNM3-800N |
| Rated current In(A) | 125A | 160A | 250A | 400A | 630A | 800A |
| Rated insulation voltage(V) | 500 | 690 | 800 | 800 | 800 | 800 |
| Rated pulse voltage(KV) | 6 | 6 | 8 | 8 | 8 | 8 |
| Rated working voltage ue (V) | AC500 | AC690 | AC690 | AC690 | AC690 | AC690 |
| DC250 | DC500 | DC750 | DC750 | DC750 | DC750 |
Ultimate
short-circuit
breaking
capacity
lcu(KA)
AC 50/60Hz | 220/240V | 40 | 50 | 65 | 65 | 65 | 65 |
| 380/415V | 25 | 35 | 35 | 35 | 35 | 35 |
| 440V | 16 | 20 | 30 | 30 | 30 | 30 |
| 500V | 12 | 12 | 25 | 25 | 25 | 25 |
| 690V | - | 8 | 14 | 20 | 20 | 20 |
| Operative short-circuit Breaking capacity | . | . | . | . | . | . |
| Isolation function | A | A | A | A | B | B |
| Usage category | . | . |
|
|
|
|
Mode
of
tripping
unit | Unadjustable |
|
|
|
|
|
|
Adjustable thermal trip
Unadjustable electromagetic trip |
|
| . | . |
|
|
| Unadjustable |
|
| . | . | . | . |
| Machanical life | 25000 | 25000 | 25000 | 20000 | 20000 | 20000 |
| Electrical life | 8000 | 8000 | 8000 | 7000 | 5000 | 5000 |
| L | 78 | 90 | 105 | 140 | 210 | 210 |
| D | 70 | 70 | 103.5 | 103.5 | 103.5 | 103.5 |
Production Capacity: we have more than 1500 workers and 100 expert engineers who can produce one container of our products in less than 5 days. Annual production is as follows; MCB 15 million poles, RCCB (thermal type) 2 million poles, (magnetic type) 800 thousand pole. Production of other products is also in the range of not less than thousands of poles annually.
Pricing: we offer the best price to meet the requirement of all customers depending on the quality and the number of quantity demanded.
Product Categories : Molded Case Circuit Breaker > KNM3 Series Moulded Case Circuit Breaker
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