WEW1-4000 air circuit breaker
TECHNICAL DATA
WEW1-4000 Air Circuit Breaker Specifications
The WEW1-4000 air circuit breaker is listed by W9 Group with a 4000 A summary rating, 3-pole or 4-pole options and 400 / 690 V AC operation. Fixed and withdrawable construction are shown. Select the current, fault duty and controller with the switchboard requirements before confirming the order code.
| Model | WEW1-4000 |
|---|---|
| Product category | Air circuit breaker |
| Summary rated current | 4000 A |
| Poles | 3P / 4P |
| Catalog current choices at 40°C | 3200, 3600, 3900, 4000 A |
| Rated operational voltage | 400 / 690 V AC, 50/60 Hz |
| Insulation voltage Ui | 1000 V |
| Impulse withstand voltage Uimp | 12 kV |
| Construction options | Fixed / withdrawable; confirm the selected assembly |
| Icu at 380 / 400 / 415 V AC | M code: 100 kA; H code: 138 kA |
| Icu at 690 V AC | M code: 65 kA; H code: 105 kA |
| Trip controller | Intelligent controller listed; confirm function set and settings |
SELECTION GUIDE
Selecting a 4000A Air Circuit Breaker: Fixed or Withdrawable
Specify the current, 3P or 4P, supply voltage, fault current, fixed or withdrawable construction, controller and accessories when requesting a WEW1-4000 quotation from W9 Group.
Specify current and poles
Reference the 4000 A version and state 3P or 4P. Confirm the current rating, neutral arrangement and permitted controller settings for the order code.
Compare voltage-specific fault duty
The Icu table lists M / H codes at 380 / 400 / 415 V and 690 V. Request the corresponding Ics and Icw data, including withstand duration, for the selected WEW1-4000.
Choose fixed or withdrawable construction
Confirm the assembly, connection drawing, panel clearances and maintenance access. For a withdrawable order, identify the matching cradle and interlocks.
Define control and accessory requirements
Specify controller functions, release supply, indication contacts and any interlock or communication requirements. Confirm the supplied accessory schedule rather than assuming every listed option is included.
ABOUT W9 GROUP
W9 Group 4000A ACB Supply and Technical Support
Zhejiang W9 Group Technology Co., Ltd. supplies low-voltage electrical products. For a WEW1-4000 enquiry, contact W9 Group about configuration and matching product documents.
RELATED RESOURCES
WEW1-4000 ACB Datasheet, Cradle and Wiring Document Requests
Use technical support and related products to specify WEW1-4000. Request a datasheet and wiring diagram matching the selected WEW1-4000 configuration.
RELATED PRODUCTWEW1-6300Compare function and configuration; request separate model ratings
DOCUMENTSW9 Group download centreRequest the current document for your quoted WEW1-4000 variant
BUYER FAQ
WEW1-4000 Air Circuit Breaker FAQs: Fault Duty and Controller Options
Find answers about WEW1-4000 selection, configuration and ordering.
Which current does the WEW1-4000 page identify?
The native summary identifies 4000 A with 3P / 4P options. The catalog current schedule lists 3200, 3600, 3900, 4000 A. These are offered current choices, not a continuous adjustment range for every controller. Confirm the final rating in the quotation.
Can I order WEW1-4000 in fixed or withdrawable form?
Both forms are listed on the source page. Confirm the complete breaker and cradle assembly, installation drawing and accessory schedule for the required form.
Can I use the same breaking capacity at every voltage?
No. The table lists Icu values of 100 / 138 kA for M / H at 380 / 400 / 415 V, and 65 / 105 kA at 690 V. Confirm the voltage and capacity code together.
Are Icu, Ics and Icw interchangeable ratings?
No. Request ultimate breaking capacity, service breaking capacity and short-time withstand current with its duration as separate selection data. Confirm them against the project fault and coordination study.
Does the intelligent controller include every protection or communication function?
An intelligent controller is listed, but the exact function set, settings and interface are not defined by that label. Confirm the controller code and operating documentation.
Which accessories should be specified with the ACB?
The schedule lists operating mechanisms, releases, indication and interlock options. Confirm the control supply, required signals, selected options and the matching connection diagram before panel integration.
What is needed for a WEW1-4000 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 WEW1-4000 Air Circuit Breaker Quotation
Tell W9 Group your current, 3P or 4P, supply voltage, fault current, fixed or withdrawable construction, controller and accessories, quantity and destination market so the selected configuration can be identified.