For this wallbox, the RCD requirement is decided on the circuit side, not read off the product page. The EV-ACT3204E‘s listing states no built-in RCD and no DC fault detection, so an installer specifies the protective device for its dedicated circuit under local wiring rules. The Type A or Type B choice turns on one question: where smooth DC fault current is detected — in the charger, or in the RCD itself.
Key Takeaways
- This model’s listing claims no built-in RCD or DC detection — plan on circuit-side protection until confirmed otherwise.
- Type A sees AC and pulsating DC; Type B adds smooth DC; 6 mA DC detection can cover the DC gap beside a Type A.
- On a hardwired install the RCD is selected when the dedicated circuit is designed — by your installer, under your local rules.
- If the installer specifies a device or board work, that answer outranks any datasheet assumption.
The Three Terms, in Brief
An RCD disconnects the supply when current leaks to earth. EV charging complicates that job: a car’s onboard charger can produce smooth DC fault current, which can blind an ordinary RCD. Our explainer on RCD protection, Type A, Type B and 6 mA DC detection works through the three terms in full.
| Device | What it detects | Its place in an EV circuit |
|---|---|---|
| Type A RCD | AC and pulsating DC residual current | Sufficient for EV charging only when smooth DC is dealt with separately |
| Type B RCD | AC, pulsating DC and smooth DC residual current | Covers the DC fault case in the RCD itself |
| 6 mA DC detection | Smooth DC residual current at the 6 mA threshold, disconnecting the supply | A detection function, often built into a charger, covering the DC gap beside a Type A |
Read This Model’s Listing Literally
Product listings are claims documents: what is not written is not promised. The written claims here are the 22 kW three-phase output, Type 2 cable or socket, RFID and app control, IP65/IP66 housing and CE mark. No RCD type and no DC detection appears among them. Two consequences follow:
- Plan as if DC detection is not built in. Until the manual — or the manufacturer in writing — states a detection function, assume the circuit must provide the whole answer.
- The manual is an installation document. On a hardwired wallbox, the manual’s required upstream protection is what your installer works to — get it before the circuit is designed.
The Decision Your Installer Actually Makes
A hardwired wallbox differs from a portable on an existing socket: nothing is inherited, and the installer selects the protective device as part of the new circuit’s design:
| Question | If the answer is yes | If the answer is no |
|---|---|---|
| Is 6 mA DC detection confirmed in the manual or in writing? | A Type A RCD upstream is the usual pairing | The RCD itself must cover smooth DC — the Type B route |
| Do local wiring rules specify a device for EV circuits? | The installer’s specification follows them | |
| Is the home’s earthing or board unusual? | The installer adjusts the design | |
One rule outranks the table: if your installer specifies a device or board work, that stands — over any assumption from a forum, a video, or another charger’s manual. The same protection job carries the GFCI name in North America; see our explainer on whether an EV charger needs GFCI protection.
The Charger Behind the Question
The EV-ACT3204PE is a 22 kW wallbox for three-phase supplies — 32 A per phase at 380–400 V — hardwired, with a tethered Type 2 cable, RFID and app control, an IP66 housing and a CE mark, backed by EVDANCE’s 3-year standard warranty. Nothing in that specification is a protection claim: the RCD conversation belongs before installation, between you, the manual and a licensed electrician. If the manual is unclear on the required upstream device, ask EVDANCE through the contact page and keep the answer.
Frequently Asked Questions
Does the EV-ACT3204E have a built-in RCD?
Not stated. Neither the listing nor the specification claims an RCD or DC fault detection for this model. Treat both as circuit-side until the manual or the manufacturer confirms otherwise in writing.
So which do I need — Type A or Type B?
It depends on where DC detection lives and on local rules — the installer’s specification, not a product-page answer. Confirmed DC detection points to Type A; without it, the RCD must cover smooth DC: Type B.
My consumer unit already has a Type A RCD. Can the installer just use that?
Possibly, but do not assume it: whether an existing device can serve a new dedicated circuit — and the DC detection question — is the installer’s call under local rules. Ask at the design stage.
Related Reading
- RCD Protection for EV Chargers: Type A, Type B and 6 mA DC Detection Explained
- Does an EV Charger Need GFCI Protection?
- What Size EV Charger Can I Have at Home? Panel Capacity Explained
