WLM6LY-630 earth leakage MCCB
TECHNICAL DATA
WLM6LY-630 Earth Leakage MCCB Specifications
The WLM6LY-630 earth leakage MCCB is listed by W9 Group with a 630 A summary rating and 3P / 4P options. Its table identifies a thermal overcurrent release and an electronic leakage release. Specify the required residual-current response, pole arrangement and fault duty for the exact supplied version.
| Model | WLM6LY-630 |
|---|---|
| Product category | Earth leakage molded case circuit breaker |
| Summary rated current | 630 A |
| Catalog current choices | 400, 500, 630 A |
| Summary pole options | 3P / 4P; confirm the complete order code |
| Voltage selection | 400 V AC appears in the summary and table; confirm voltage for the selected configuration |
| Overcurrent release listed | Thermal |
| Leakage release listed | Electronic |
| Residual-current type listed | AC; confirm suitability for the expected waveform |
| Insulation voltage Ui | 1000 V |
| Impulse withstand voltage Uimp | 8 kV |
| Leakage alarm without tripping | Shown as an option; confirm availability and intended alarm / trip mode |
| Standard listed | IEC / EN 60947-2; request applicable model documents |
SELECTION GUIDE
Selecting a 630A Earth Leakage MCCB by Sensitivity and Poles
Specify the selected current, poles, leakage sensitivity and delay, waveform requirement, voltage, fault duty and alarm mode when requesting a WLM6LY-630 quotation from W9 Group.
Choose the ordered current
The 630 A page lists 400, 500, 630 A. Confirm the selected current and full model suffix, including the pole arrangement.
Specify leakage protection
Provide the required sensitivity, waveform response and delay. Confirm the actual available settings; residual-current making capacity is not the sensitivity setting.
Check voltage and fault duty
Use the selected configuration’s operational-voltage and breaking-capacity data. Confirm the capacity code and do not substitute insulation voltage for operating voltage.
Define alarm, mounting and wiring
Confirm tripping versus alarm-only behavior, mounting form, neutral routing and the connection drawing. Request the required test and commissioning instructions.
ABOUT W9 GROUP
W9 Group 630A Earth Leakage MCCB Supply and Support
Zhejiang W9 Group Technology Co., Ltd. supplies low-voltage electrical products. For a WLM6LY-630 enquiry, contact W9 Group about configuration and matching product documents.

RELATED RESOURCES
WLM6LY-630 Residual-Current MCCB Datasheet and Wiring Requests
Use technical support and related products to specify WLM6LY-630. Request a datasheet and wiring diagram matching the selected WLM6LY-630 configuration.
RELATED PRODUCTWLM6LY-1250Compare function and configuration; request separate model ratings
DOCUMENTSW9 Group download centreRequest the current document for your quoted WLM6LY-630 variant
BUYER FAQ
WLM6LY-630 Earth Leakage MCCB FAQs: Sensitivity, Alarm and Fault Duty
Find answers about WLM6LY-630 selection, configuration and ordering.
Which current choices are listed for WLM6LY-630?
The summary identifies 630 A. The frame schedule lists 400, 500, 630 A. Confirm the selected current and complete order code; the schedule is not a guaranteed adjustment range.
Is this an RCCB without overcurrent protection?
The target table describes a molded-case device with overcurrent and leakage releases. Confirm the complete protection functions in the matching datasheet; generic RCCB text is insufficient to classify the ordered unit.
What leakage sensitivity can I order?
A definitive sensitivity schedule is not established by the available page. State your required residual-current pickup and delay, then confirm the available combination with W9 Group.
Does the listed residual-current type cover every waveform?
The table lists AC residual-current response. Confirm the expected leakage waveform and required device type; do not assume support for other waveforms from the electronic release description.
Can the breaker signal leakage without tripping?
A leakage-alarm non-tripping function is marked as an option. Confirm whether it is available, which mode is supplied and how the alarm is wired for the exact order code.
How should I select voltage and breaking capacity?
Request the operational-voltage and Icu / Ics data for the pole arrangement and capacity code. Confirm discrepancies between the summary and table before installation; no universal fault rating is assigned here.
PRODUCT ENQUIRY
Request a WLM6LY-630 Earth Leakage MCCB Quotation
Tell W9 Group your selected current, poles, leakage sensitivity and delay, waveform requirement, voltage, fault duty and alarm mode, quantity and destination market so the selected configuration can be identified.





































