DW15 Air Circuit Breaker or called ACB circuit breaker (hereinafter referred to as circuit breaker) is suitable for distribution networks with AC 50Hz, rated current 200A to 4000A and rated operating voltage from 380V to 1140V. The ABC circuit breaker is mainly used for power distribution and circuit protection in distribution networks, overload, under voltage and short circuit protection of power equipment.
Under normal conditions, the circuit breaker can be used as infrequent switching of the circuit and infrequent start of the motor.
TAIXI is a professional air circuit breaker suppliers, DW15 ABC circuit breaker complies with the GB14048.2.
Model and meaning
Model and meaning
● According to the use category
Class A (non-selective, with overcurrent two section protection).
● According to the transmission device
a. The front handle directly drives;
b. Motor drive.
Note: Unless specified by the user, normal supply has two functions of a and b.
● According to the release type
a. Overcurrent release and shunt release;
b. Overcurrent release, undervoltage instantaneous release;
c. Overcurrent release, shunt release and undervoltage instantaneous release.
● According to the type of overcurrent protection
a. Instantaneous operation of overload and short circuit (electromagnetic);
b. overload long delay and short-circuit instantaneous operation (thermal-electromagnetic);
Note: Users can consult with suppliers when they do not need overcurrent release.
● According to the type of undervoltage protection
a. Instantaneous operation;
b. Delay operation.
● According to the pre-energy storage
a. No pre-storage energy (energy storage and closing operations completed once);
b. Pre-stored energy (energy storage and closing operations completed twice).
● According to the way of inlet-outlet
a. Front-panel inlet-outlet (vertical inlet-outlet);
b. Back-panel inlet-outlet (horizontal inlet-outlet);
c. Front-panel inlet, back-panel outlet (vertical inlet, horizontal outlet);
d. Front-panel outlet, back-panel inlet (vertical outlet, horizontal inlet).
Normal working conditions
1. The ambient air temperature is -5°C to +40°C and the average value within 24 hours does not exceed +35°C. 2. The elevation of the installation site does not exceed 2000m.
3. Atmospheric relative humidity does not exceed 50% at ambient air temperature of +40°C; higher relative humidity at lower temperatures; monthly average maximum relative humidity of the wettest month is 90%, at the same time the average temperature of the month is +25°C, and the condensation on the surface of the product due to the temperature change is considered.
4. Pollution level 3
5. Main circuit installation category of circuit breaker is IV. The auxiliary circuit installation category except for the undervoltage release coil, the installation category is the same as the main circuit of the breaker, the others are installation category III.
Main parameters and technical performance
1. The rated insulation voltage of this series of products is equal to the corresponding rated operating voltage.
2. The main parameters of the ABC circuit breaker
| Frame rated current Inm (A) |
630 |
1600 |
2500 |
4000 |
| Conventional thermal current Ith (A) |
200 |
400 |
630 |
1000 |
1600 |
2500 |
4000 |
| Pole |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
| Rated current In (A) |
Thermal electromagnetic |
200 |
315, 400 |
315, 400, 630 |
630, 800, 1000 |
1250, 1600 |
1600, 2000, 2500 |
2500, 3000, 4000 |
| Rated limit short circuit breaking capacity Icu (KA) |
AC 380V |
30 |
30 |
30 |
40 |
40 |
60 |
60 |
Rated operation short circuit breaking capacity
Ics (KA) |
AC 380V |
30 |
30 |
30 |
30 |
30 |
40 |
50 |
| Mechanical life (times) |
10000 |
10000 |
10000 |
5000 |
5000 |
5000 |
4000 |
| Electrical life 1In, 1Ue(times) |
1000 |
1000 |
1000 |
500 |
500 |
500 |
500 |
| Electrical life 1In, 1Ue(times) |
1000 |
1000 |
1000 |
500 |
500 |
500 |
500 |
| AC380V Protection motor life AC-3(times) |
2000 |
2000 |
2000 |
|
|
|
|
| Operating frequency (times/h) |
60 |
60 |
60 |
20 |
20 |
20 |
10 |
| Arc distance (mm) |
280 |
280 |
280 |
350 |
350 |
350 |
400 |
| Operating arm (mm) |
90 |
90 |
90 |
250 |
250 |
250 |
250 |
| Operating force (N) |
200 |
200 |
200 |
200 |
350 |
350 |
350 |
Note:
a. Rated short circuit breaking capacity of DW15 ACB circuit breaker, Inm≤630: the upper line, Inm>630: the same as the upper and lower lines.
b. The basic parameters of air circuit breaker DW15C-200, 400, 630 are the same as those of DW15-200, 400, 630.
3. ACB circuit breaker Release, Releasing Solenoid Coils and Control Box Rated Voltage
| Type |
Rated voltage (V) |
| AC 50Hz |
DC |
| Release |
Shunt release |
Us |
127, 220, 380 |
110, 220 |
| Undervoltage release |
Us |
127, 220, 380 |
- |
| Closing device |
Operating mechanism release energy electromagnet |
Us |
127, 220, 380 |
110, 220 |
| Operating electromagnet control box |
|
