WEW3-4000 air circuit breaker
TECHNICAL DATA
WEW3-4000 3 Pole and 4 Pole Air Circuit Breaker Specifications
The WEW3-4000 air circuit breaker is listed by W9 Group with a 4000 A summary rating, 3P / 4P options and fixed or withdrawable configurations. Select the ordered current and controller, then obtain voltage-specific fault ratings and installation data for the exact capacity code.
| WEW3 Air Circuit Breaker | 4000 | ||||||||||||
| Rated operating current In (A),40℃ | 2000-2500-2900-3200-3600-3900-4000 | ||||||||||||
| Rated insulation voltage Ui (V) | 1000 | ||||||||||||
| Rated impulse withstand voltage (kV) | 12 | ||||||||||||
| Rated operational voltage Ue(V),AC 50/60Hz | 400V/690V | ||||||||||||
| Use category | B | ||||||||||||
| Rated operational voltage Ue(V),AC 50/60Hz | 100%In | ||||||||||||
| Breaking capacity code | M | H | |||||||||||
| Number of poles | 3P | ■ | ■ | ||||||||||
| 4P | ■ | ■ | |||||||||||
|
Rated ultimate short-circuit breaking capacity Icu (kA) |
AC380V/400V/415V | 100 | 138 | ||||||||||
| AC690V | 65 | 105 | |||||||||||
| AC800V/1140V | 80 | 138 | |||||||||||
|
Rated service breaking capacity Ics (kA) |
AC380V/400V/415V | 65 | 105 | ||||||||||
| AC690V | 80 | 138 | |||||||||||
| AC800V/1140V | 65 | 105 | |||||||||||
|
Rated short-time withstand current Icw (kA/1s) |
AC380V/400V/415V | 80 | 138 | ||||||||||
| AC690V | 65 | 105 | |||||||||||
| AC800V/1140V | – | – | |||||||||||
|
Mechanical life (CO recycle) |
Maintenance | 20000 | |||||||||||
|
Electrical life (CO recycle) |
AC415V,In | 6000 | |||||||||||
| AC690V,In | 2000 | ||||||||||||
| Standard configuration | Fixed | Drawetry-pe | |||||||||||
| The body of the circuit breaker | ■ | ■ | |||||||||||
| Drawer base | ■ | ■ | |||||||||||
| Intelligent controller | ■ | ■ | |||||||||||
| Upper and lower horizontal connecting wires | ■ | ■ | |||||||||||
| Indicating contact of opening/closing | ■ | ■ | |||||||||||
| Indicating contact of fault tripping | ■ | ■ | |||||||||||
| Auxiliary contact 4NO+4NC | ■ | ■ | |||||||||||
| Electric motor operating mechanism | ■ | ■ | |||||||||||
| Shunt releas | ■ | ■ | |||||||||||
| Optional accessories | |||||||||||||
| Phase partition | □ | □ | |||||||||||
| Instantaneous undervoltage release | □ | □ | |||||||||||
| Time-delay undervoltage release | □ | □ | |||||||||||
| Opening and closing button lock | □ | □ | |||||||||||
| Lock for the drawer base | □ | □ | |||||||||||
| Lock for the separation position of the drawer seat | □ | □ | |||||||||||
| Key lock | □ | □ | |||||||||||
| Door interlock | □ | □ | |||||||||||
| Auxiliary contact 6NO+6NC | □ | □ | |||||||||||
| Electric indications of three positions on the drawer base | □ | □ | |||||||||||
| Steel cable interlock | □ | □ | |||||||||||
| Locking interlock | □ | □ | |||||||||||
| Dual power controller | □ | □ | |||||||||||
| External neutral line transformer | □ | □ | |||||||||||
| Zero-sequence transformer | □ | □ | |||||||||||
| Ground current transformer and its accessories | □ | □ | |||||||||||
| Dimension | |||||||||||||
|
Dimension (mm) W×H×D |
Width (3P/4P) | 66/105 | 66/105 | ||||||||||
| Height | 57/60 | 60/62 | |||||||||||
| Depth | 60/62 | 57/61 | |||||||||||
| Weight | |||||||||||||
| Weight(kg)/Fixed | 3P | 83/83 | |||||||||||
| 4P | 110.2/125.2 | ||||||||||||
| Weight(kg)/Drawer | 3P | 122/150 | |||||||||||
| 4P | 155/175 | ||||||||||||
SELECTION GUIDE
How to Select a 4000A Fixed or Withdrawable Air Circuit Breaker
Specify the ordered current, poles, construction, system voltage, fault level, controller and control-supply requirements when requesting a WEW3-4000 quotation from W9 Group.
Define the current and frame
State WEW3-4000, the ordered current and continuous load. Confirm the selected controller and any derating conditions.
Match the application voltage
Provide system voltage and prospective fault current. Request a matched rating table rather than relying on a generic solar application title.
Choose fixed or withdrawable
Confirm the construction, base, interlocks, terminal arrangement and maintenance access on the installation drawing.
Specify the control package
List required trip functions, operating supply, auxiliary feedback and communication needs. Confirm each item in the supplied bill of materials.
ABOUT W9 GROUP
W9 Group 4000A Air Circuit Breaker Supply and Support
Zhejiang W9 Group Technology Co., Ltd. supplies low-voltage electrical products. For a WEW3-4000 enquiry, contact W9 Group about configuration and matching product documents.
RELATED RESOURCES
WEW3-4000 ACB Wiring, Icu, Ics and Icw Document Requests
Use technical support and related products to specify WEW3-4000. Request a datasheet and wiring diagram matching the selected WEW3-4000 configuration.
RELATED PRODUCTWEW3-7500Compare function and configuration; request separate model ratings
DOCUMENTSW9 Group download centreRequest the current document for your quoted WEW3-4000 variant
BUYER FAQ
WEW3-4000 Air Circuit Breaker FAQs: Fault Ratings and Trip Controllers
Find answers about WEW3-4000 selection, configuration and ordering.
Which current choices are listed for WEW3-4000?
The target table lists 2000, 2500, 2900, 3200, 3600, 3900, 4000 A. Confirm the ordered current, controller range and any enclosure or temperature derating.
Does the listing establish every voltage mentioned in the old title?
Use a matched rating document for the offered device. The summary, title and some table entries differ; no extended-voltage suitability is promised from the title alone.
How do fixed and withdrawable versions differ for ordering?
State the required construction and confirm the supplied base, position indication, interlocks, terminals and installation dimensions for that version.
Are Icu, Ics and Icw interchangeable ratings?
Request all required ratings separately at the project voltage. Confirm the short-time withstand duration and the controller settings used in the coordination study.
Does every controller include ground-fault protection or communication?
A series configuration list does not establish every controller function. Confirm the exact controller code, sensing arrangement, protection functions and communication interface.
Can the breaker be installed outdoors without an enclosure?
The available listing does not establish a complete outdoor enclosure specification. Confirm the switchboard protection, environmental conditions and installation requirements; generic waterproof wording is not a device rating.
What is needed for a WEW3-4000 quotation?
Send the required configuration, quantity, destination market and document requirements. Ask W9 Group to confirm price, minimum order quantity, samples and lead time for the selected configuration.
PRODUCT ENQUIRY
Request a WEW3-4000 Air Circuit Breaker Quotation
Tell W9 Group your ordered current, poles, construction, system voltage, fault level, controller and control-supply requirements, quantity and destination market so the selected configuration can be identified.