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Distribution electrical appliances
WHKW1-1600 Circuit Breaker
The WHKW1-1600 series intelligent universal circuit breaker is suitable for power distribution networks with an alternating current of 50Hz, rated voltage up to 690V and below, and rated current ranging from 200 to 1600A.
Product Details
Model and Meaning
Technical Specifications
Appearance and dimensions
Other
WHKW1-1600 series intelligent universal circuit breaker is suitable for distribution networks with AC 50Hz, rated voltage to 690V and below, and rated current of 200 ~ 1600A. It is mainly used to distribute electric energy and protect lines and power equipment from overload, short circuit, undervoltage, single-phase grounding and other faults. Under normal conditions, it can be used for infrequent switching of circuits, and also for infrequent starting and protection of motors.
Model and What It Means
| WHK | W | 1 | — | 1600 | / | ☐ | / | ☐ |
|---|---|---|---|---|---|---|---|---|
| Enterprise code |
Universal type Circuit breaker |
Design serial number |
Circuit breaker housing Class rated current |
Number of poles (3 poles do not need to be written) | Rated operating current |
| Model | WHKW1-1600 | ||||
|---|---|---|---|---|---|
|
Rated current of the enclosure rating Inm（A） |
1600 | ||||
|
Rated current In（A） |
200、250、315、350、400、500、630、800、1000、1250、1600 | ||||
|
Rated operating voltage Ue（V） |
AC400，AC690 | ||||
|
Working frequency （Hz） |
AC50Hz | ||||
|
Rated insulation voltage Ui（V） |
1000 | ||||
|
Rated impulse withstand voltage Uimp（kV） |
12 | ||||
|
Power frequency withstand voltage U（V）1min |
3500 | ||||
| Infinity（P） | 3，4 | ||||
|
Rated current of N pole In（A） |
100%In | ||||
| Usage Categories | GB/T14048.2 | B | |||
| GB/T14048.4 (In≤1000A) | AC-3 | ||||
|
Rated short-circuit breaking capacity Icu(kA) (rms value) |
AC400V | 65 | |||
| AC690V | 42 | ||||
|
Rated short-circuit breaking capacity for operation Ics(kA) (Effective Value) |
AC400V | 50 | |||
| AC690V | 25 | ||||
|
Rated short-circuit closing capacity Icm(kA) (effective value) |
AC400V | 143 | |||
| AC690V | 105 | ||||
|
Rated short-circuit withstand current Icw(kA/1S) (effective value) |
AC400V | 50 | |||
| AC690V | 25 | ||||
| Total disconnection time (without additional delay)(rmns) | 25 | ||||
| Closing time（ms） | Max 70 | ||||
| Electrical lifespan (number of cycles) | AC400V | In=200A~630A | 7000 | ||
| In=800A~1250A | 7000 | ||||
| In=1600A | 7000 | ||||
| AC690V | In=200A~630A | 6000 | |||
| In=800A~1250A | 6000 | ||||
| In=1600A | 6000 | ||||
| Mechanical life (times) | Maintenance-free | 10000 | |||
| Maintenance is in place | 20000 | ||||
|
Overall dimensions (width × height × depth) （mm） |
Fixed type | 3P | 263×310×232 | ||
| 4P | 333×310×232 | ||||
| Drawer-type | 3P | 275×345×330 | |||
| 4P | 343×345×330 | ||||
Comply with: IEC60947-1 and GB/T14048.1-2012 "General Principles for Low Voltage Switchgear and Control Equipment";
IEC60947-2 and GB/T14048.2-2020 Circuit Breakers for Low Voltage Switchgear and Control Equipment;
IEC60947-4-1 and GB/T14048.4 "Electromechanical contactors and motor starters for low-voltage switchgear and control equipment (including motor protectors)"
◆ Class AC-3 Use Class;
◆ Features drawer style and fixed style;
◆ Reversable wire connection;
◆ With isolation function;
◆ It has a variety of intelligent protection functions and accurate selective protection, which can improve power supply reliability and avoid unnecessary power outages.
Normal working conditions
◆ The surrounding air humidity is-5 ℃ + 40 ℃ (it can be used in reduced volume beyond the range);
◆ The altitude of the installation site shall not exceed 2000m;
◆ The relative humidity of the air at the installation site shall not exceed 50% when the maximum temperature is + 40 °C, and may have a higher relative humidity at a lower temperature, such as 90% at 20 °C. Special instructions should be taken for occasional condensation due to temperature changes;
◆ The pollution level is level 3;
◆ The installation category of the main circuit of the circuit breaker is V, and the installation category of other auxiliary circuits and control circuits is II;
◆ Circuit breakers should be installed in places without explosion hazards and conductive dust, which are not sufficient to corrode metal and damage insulation;
◆ Circuit breakers should be installed in places free from rain and snow;
◆ Operable conditions: pass the test requirements of GB/T14048.2, and use with reduced volume at an altitude exceeding 2000m);
◆ Storage conditions: Ambient air temperature is-5 ℃-+ 40 ℃.
Circuit breaker secondary circuit wiring diagram
