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The WEV463B-030 is a 63A, 30mA, four-pole Type B RCD for three-phase circuits where Type B residual current protection is specified. It detects AC, pulsating DC and smooth DC residual currents, with manufacturer-stated AC residual current response up to 1,000Hz.
Its four-module format and 72 × 87 × 79.5mm dimensions make the space requirement clear before you order. The manufacturer lists applications including EV charging, solar PV, UPS equipment and frequency converters; selection must match the connected equipment’s instructions and the circuit design.
Check the details that determine the right RCD
- 63A rated current: the current rating of the RCD, distinct from its residual current sensitivity.
- 30mA residual current rating: the specified leakage sensitivity for this model.
- Four poles, four modules: for the specified three-phase arrangement; the manufacturer gives a 400/415V working voltage for the four-pole range.
- Type B residual current detection: covers AC, pulsating DC and smooth DC; this is unrelated to an MCB’s B trip curve.
- Documented product standards: IEC/EN 61008-1 and IEC/EN 62423, with the manufacturer datasheet available below.
This is an RCD/RCCB, so separate overcurrent protection is required. It does not provide the overload and short-circuit protection of an MCB or RCBO. A Type B RCD also does not provide open-PEN fault detection.
Image reference: the current photograph is labelled WEV4100B-030, 100A. This listing is for WEV463B-030, 63A; use the product code and specification when ordering.
Compare Type B RCD variants
| Product | Configuration | Choose when |
|---|---|---|
| WEV463B-030 — this product | 4 pole · 63A · 30mA · 4 modules | The specified three-phase circuit needs a 63A, four-pole Type B RCD. |
| WEV263B-030 | 2 pole · 63A · 30mA · 3 modules | The installation requires a two-pole Type B device rather than a four-pole model. |
| WEV4100B-030 | 4 pole · 100A · 30mA | The design specifies a higher current rating. Check this model’s availability and full data separately. |
Select pole count, rated current and sensitivity from the installation specification rather than choosing a higher rating as an automatic upgrade. For EV equipment, check the charger’s built-in protection and manufacturer instructions before deciding on the external RCD arrangement.
Download the WEV Type B RCD datasheet (PDF) or compare the RCD range. Add WEV463B-030 to your basket when the 63A four-pole specification matches your project. For a specification check, contact Power & Data UK with the equipment model, supply arrangement and required quantity.
