ANATEL Enforces IEC 61000-4-20:2026 Class H for DC Fast Chargers in Brazil

On May 4, 2026, Brazil’s National Telecommunications Agency (ANATEL) issued Portaria No. 45/2026, mandating that all new DC fast charging equipment submissions must comply with IEC 61000-4-20:2026 Class H immunity testing—simulating electromagnetic conditions near high-voltage substations—effective June 1, 2026. This update directly impacts manufacturers, importers, and certification service providers active in the EV charging infrastructure sector in Brazil.

Event Overview

On May 4, 2026, ANATEL published Portaria No. 45/2026, stipulating that, as of June 1, 2026, all newly submitted DC fast charging devices must be evaluated against IEC 61000-4-20:2026 at Class H level. Reports based on legacy Class A or Class B testing are no longer accepted for certification. The regulation applies to new applications only; no grandfathering or transition period is specified in the official text.

Industries Affected by Segment

Direct Exporters and Importers of DC Fast Charging Equipment

These entities face immediate compliance risk for shipments scheduled for ANATEL certification after June 1, 2026. Because Class H testing simulates a significantly harsher electromagnetic environment than previous classes, existing test reports—even those recently issued under Class A/B—become invalid upon submission. Over 85% of pending certification projects are reported affected, implying potential delays in market entry or retesting costs.

Original Equipment Manufacturers (OEMs) and Tier-1 Suppliers

OEMs supplying chargers or power modules to Brazilian integrators must verify whether their current designs meet Class H immunity thresholds. Unlike Class A/B, Class H requires validation under coupled field conditions representative of substation proximity—potentially demanding hardware revisions (e.g., shielding, filtering, grounding layout) and additional EMC pre-compliance validation before formal ANATEL testing.

Certification and Testing Service Providers

Third-party labs accredited for ANATEL evaluation must confirm readiness for IEC 61000-4-20:2026 Class H testing—including calibrated field generation systems, validated test setups, and personnel training. Labs lacking Class H capability may refer clients to alternative facilities, introducing scheduling bottlenecks and extended lead times for applicants.

What Stakeholders Should Monitor and Do Now

Confirm test report validity timelines

Verify whether any pending or recently completed Class A/B test reports were submitted to ANATEL before June 1, 2026. Portaria No. 45/2026 does not extend validity for reports generated prior to the effective date but submitted afterward—so submission timing, not test date, governs eligibility.

Identify product families requiring Class H re-evaluation

Map all DC fast charger models intended for Brazilian market launch between June and December 2026. Prioritize units with high-power topologies (e.g., 250 kW+), liquid-cooled designs, or proximity-sensitive control architectures—these are most likely to require design review or component-level mitigation before Class H testing.

Engage accredited labs early to secure Class H test slots

Given the technical complexity and limited global availability of full-spectrum Class H test capabilities, stakeholders should contact ANATEL-accredited laboratories now to assess capacity, required documentation, and estimated turnaround time—especially for products without prior high-field immunity data.

Editorial Perspective / Industry Observation

Observably, this regulatory shift reflects ANATEL’s alignment with evolving grid-integration requirements for distributed energy infrastructure—not merely a routine standard update. Class H represents a de facto elevation in electromagnetic resilience expectations, particularly relevant as Brazil expands high-power charging networks near transmission corridors. Analysis shows this is less a transitional signal and more an operational threshold: it directly constrains time-to-market for non-compliant designs and reshapes pre-certification validation workflows. From an industry perspective, sustained attention is warranted not only for Brazil but also as a potential precedent for other emerging markets adopting stricter grid-coexistence criteria for EV infrastructure.

While the mandate takes effect June 1, 2026, its practical impact extends beyond compliance deadlines—it signals a structural recalibration of electromagnetic compatibility expectations for high-power charging systems in utility-adjacent deployments. Stakeholders are advised to treat this as a fixed technical gate, not a negotiable policy phase-in.

Source Attribution

Primary source: ANATEL Portaria No. 45/2026, published May 4, 2026. No supplementary guidance or implementation FAQs have been issued as of the publication date. Further clarification on enforcement scope (e.g., retrofit units, software updates) remains pending observation.