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Distribution electrical appliances
WHKW1-2000/3200/6300 Circuit Breaker
The WHKW1 series universal circuit breaker (hereinafter referred to as the "circuit breaker") is applicable to power distribution networks with an alternating current of 50Hz, rated voltage up to 69V and below, and rated current ranging from 200A to 6300A. It is used to distribute electrical energy and protect lines and power equipment from hazards such as overload, undervoltage, short circuit, and single-phase grounding. The circuit breaker has intelligent protection functions, precise selective protection, and can improve power supply reliability and avoid unnecessary power outages. It also has an open communication interface that can perform four remote functions to meet the requirements of control centers and automation systems. The circuit breaker complies with GB/T 14048.2 (Low-voltage switchgear and control equipment - Low-voltage circuit breakers) and IEC 60947-2 (Low-voltage switchgear and control equipment - Circuit breakers and other standards).
Product Details
Model and Meaning
Technical Specifications
Appearance and dimensions
Other
The WHKW1 series universal circuit breakers (hereinafter referred to as the circuit breakers) are suitable for distribution networks with an AC freency of 50Hz, rated voltages up to and including 690V, and rated currents ranging from 200A to 6300A. They ed for power distribution and to protect circuits and power supply equipment from hazards caused by faults such as overload, undervoltage, short circuits, and single-phase grounding.
The circuit breakers featuret protection functions and precise selective protection, which can improve power supply reliability and avoid unnecessary power outages. They are also equipped with open communication interfaces to support the "four remoteons, meeting the requirements of control centers and automation systems.
The circuit breaker complies with GB/T 14048.2 (low-voltage switchgear and control equipment low-voltage circuit breaker) and IEC 60947-2 (low-voltage switchgear and control equipment circuit breaker standards).
Model and What It Means
| WHK | W | 1 | — | ☐ | / | ☐ | / | ☐ |
|---|---|---|---|---|---|---|---|---|
| Enterprise code |
Universal type Circuit breaker |
Design serial number |
Shell frame of circuit breaker Class rated current |
Number of poles (quadrupole product label 4; Three poles do not need to be marked) |
Rated operating current |
Description:
Standard configuration: the intelligent controller is M-type, the auxiliary switch is four groups of conversion contacts, and the connection mode is horizontal rear;
Intelligent controller, shunt release device, undervoltage release device and closing electromagnet electric operating mechanism indicate the voltage value.
◆Breaker rated current
|
Rated current of the enclosure rating Inm（A） |
Rated current （A） |
||
|---|---|---|---|
| 2000 | 200、250、315、350、400、500、630、800、1000、1250、1600、2000 | ||
| 3200 | 2000、2500、2900、3200 | ||
| 4000 | 2500、2900、3150、3200、3600、3900、4000 | ||
| 6300 | 4000、5000、6300 | ||
◆The rated short-circuit breaking capacity, short-term withstand current and lifespan of the circuit breaker
| Frame rating rated current Inm (A) | 2000 | 3200 | 4000 | 6300 | |
|---|---|---|---|---|---|
|
Rated short-circuit breaking capacity Icu(kA) 0-C0 |
400V | 85 | 100 | 100 | 120 |
| 690V | 55 | 65 | 65 | 85 | |
|
Rated short-circuit closing capacity n x Icu(kA) /cosΦ |
400V | 176/0.2 | 220/0.2 | 220/0.2 | 264/0.2 |
| 690V | 105/0.25 | 143/0.2 | 143/0.2 | 187/0.2 | |
|
Rated short-circuit breaking capacity for operation Ics(kA) 0-C0-C0 |
400V | 65 | 80 | 80 | 100 |
| 690V | 55 | 65 | 65 | 85 | |
|
Rated short-circuit withstand current Icw(kA) /1s 0-C0 |
400V | 65 | 80 | 80 | 100 |
| 690V | 45 | 65 | 50 | 75 | |
| Electrical lifespan (number of cycles) | 400V | 7000 | 7000 | 7000 | 7000 |
| 690V | 6000 | 6000 | 6000 | 6000 | |
| Mechanical life (times) | Maintenance-free | 10000 | 10000 | 10000 | 10000 |
| Maintenance is in place | 20000 | 20000 | 20000 | 20000 | |
Normal working and installation conditions
◆ Ambient air temperature: the upper limit is not more than + 40 ℃, the lower limit is not less than-5 ℃, and the 24-hour average is not more than + 35 ℃. When the upper limit exceeds + 40 ℃ or the lower limit is lower than-10 ℃, users should negotiate with our company.
◆ Elevation of installation site: not more than 2000m.
◆ Atmospheric conditions: The relative humidity of the atmosphere does not exceed 50% when the ambient air is +40 "C, higher relative humidity can be achieved at lower temperatures, the monthly average maximum relative humidity of the wettest month is 90%, and the average minimum temperature of the month is +25" C, taking into account the condensation occurring on the product surface due to temperature changes. Users should negotiate with our company if they exceed the regulations.
◆ Protection Level (IP): 30
◆ Pollution level: III.
◆ Category of use: Category B.
◆ Installation category: Circuit breakers and undervoltage releases with rated working voltage of 90V and below, and primary coils of power transformers are used for installation category IV; The installation category of auxiliary circuit and control circuit is III.
◆ Installation conditions: The circuit breaker shall be installed according to the instructions, and the vertical inclination of the circuit breaker shall not exceed 5 degrees (the mine inclination shall not exceed 15 degrees).
Circuit breaker secondary circuit wiring diagram
