April 2026 Electrical Engineering Standards Update: Part 2

The latest wave of international electrical engineering standards released in April 2026 brings essential enhancements in product data exchange, relay testing, e-waste management, insulation coordination, and power quality analysis. This second entry in our ongoing series spotlights five pivotal standards, equipping industry professionals with critical updates, compliance directions, and actionable guidance for navigating these timely changes across global markets.

Overview / Introduction

Electrical engineering underpins modern infrastructure, technology manufacturing, and global energy systems. Standards in this field are pivotal to ensuring interoperability, safety, reliability, and environmental stewardship across products and networks. In April 2026, key international organizations published new and revised standards shaping how companies design, test, install, and manage electrical and electronic products.

This article, Part 2 of 6, unpacks the scope, technical requirements, and compliance impacts of five newly released standards covering:

• Product data and catalogue management for low-voltage switchgear and controlgear
• Advanced relay coil test methods
• Sustainable e-waste management framework
• Insulation coordination protocols for relays
• Harmonic analysis in public electric power networks

Whether you oversee compliance, quality, procurement, or engineering projects, these updates carry practical implications for design, safety, and sustainability across the electrical industry.

Detailed Standards Coverage

IEC 62683-1:2026 – Low-Voltage Switchgear & Controlgear Catalogue Data

Switchgear, controlgear and their assemblies for low-voltage – Product data and properties for information exchange – Part 1: Catalogue data

The newly released second edition of IEC 62683-1:2026 sets a robust reference dictionary for low-voltage switchgear and controlgear — a foundational building block for digital product data exchange in the electrical sector. The standard defines unambiguous product properties and class descriptions, facilitating the seamless sharing of switchgear and controlgear information among manufacturers, suppliers, users, and electronic catalogue providers.

Key requirements and specifications include:

• Standardized property definitions covering dimensions, functions, ratings, and configuration options for low-voltage devices and assemblies.
• Clearly structured classes encompassing circuit breakers, switches, contactors, relays, proximity sensors, and related accessories, alongside expanded class listings in this edition.
• A rigorous nomenclature for terms, formats, units, and value lists, supporting integration with electronic product catalogues and procurement systems.

Who needs to comply?

• Manufacturers of low-voltage switchgear, controlgear, and assemblies.
• Component suppliers, system designers, catalog providers, and procurement organizations dealing with product data exchanges.

Practical implementation:

• Ensures consistent technical specifications across global supply chains, reducing data ambiguity and selection errors.
• Promotes interoperability with electronic procurement and design automation platforms.

Notable changes from the prior edition:

• Addition of new device and assembly classes, aligned with IEC CDD 62683DB updates.
• Inclusion of additional product property definitions and revised class structures for assemblies.

Key highlights:

• Unified dictionary for digital product catalogues
• New device and assembly classes included
• Updated property definitions for improved data quality

Access the full standard:View IEC 62683-1:2026 on iTeh Standards

EN IEC 63522-3:2026 – Relay Coil Properties: Tests and Measurements

Electrical relays – Tests and measurements – Part 3: Relay coil properties

Precision and reliability in relay coil performance are fundamental to the safety and operation of electrical systems. EN IEC 63522-3:2026 details uniform testing procedures for key coil characteristics—crucial for relay manufacturers, system integrators, and quality assurance personnel.

Scope and specifications:

• Defines standardized test methods for coil resistance, impedance, inductance, power consumption, and transient suppression capability.
• Specifies test conditions to evaluate performance under transportation, storage, and operational stresses.
• Outlines reporting protocols to ensure traceable, reproducible results across suppliers and laboratories.

Applicable to:

• Manufacturers of electrical relays (across industrial, automotive, and infrastructure segments)
• Testing and certification organizations ensuring conformity of relay products

Practical implications:

• Supports harmonized procurement specifications and reduces field failure risk from coil-related faults.
• Streamlines design testing and acceptance processes, enabling global supply chain efficiency.

Key highlights:

• Detailed procedures for electrical coil testing
• Ensures operational reliability under diverse conditions
• Facilitates standardized reporting and certification

Access the full standard:View EN IEC 63522-3:2026 on iTeh Standards

FprEN IEC 63395:2025 – Sustainable E-Waste Management

Sustainable management of waste electrical and electronic equipment (e-waste) – Proposed horizontal publication

As e-waste generation soars, organizations face rising regulatory and social expectations for responsible disposal and recycling. FprEN IEC 63395:2025 lays the groundwork for a horizontal, lifecycle-based approach to sustainable e-waste management across all electrical and electronic product sectors.

Scope and key requirements:

• Establishes principles for best environmental outcomes, pollution prevention, and lifecycle perspective in e-waste management.
• Details management system requirements covering quality, environmental, health, and safety (QEHS), with guidance on traceability, performance evaluation, and stakeholder engagement.
• Defines operational processes for collection, handling, sorting, refurbishment, component and material recovery, energy recovery, and final disposal.
• Includes data security considerations for device recycling/refurbishment.

Who is this relevant to?

• Manufacturers, recyclers, refurbishers, retailers, and logistics providers handling end-of-life electrical and electronic equipment.
• Organizations seeking to align operations with circular economy and extended producer responsibility frameworks.

Implementation impact:

• Facilitates transparent and auditable e-waste chains, supporting regulatory compliance and eco-labeling.
• Reduces environmental and health risks associated with hazardous materials and improper disposal.

Key highlights:

• End-to-end QEHS management for e-waste processes
• Methodologies for product/component/material recovery
• Guidance on traceability, monitoring, and data security

Access the full standard:View FprEN IEC 63395:2025 on iTeh Standards

IEC 63522-41:2026 – Relay Insulation Coordination: Tests & Procedures

Electrical relays – Tests and measurements – Part 41: Tests and measurement procedures – Insulation coordination

Electrical insulation is critical for safety and reliability, particularly in relay applications subject to industrial environments and voltage surges. IEC 63522-41:2026 addresses insulation coordination for elementary, solid-state, guided-contact, and hybrid relays, as well as reed contacts.

Scope and technical requirements:

• Offers guidance for evaluating insulation distances, creepage paths, solid insulation, and accessible surfaces.
• Links test procedures with those in related standards (IEC 60664 series), ensuring harmonized requirements for isolation strengths under different pollution and usage conditions.
• Includes protocols for materials selection and testing, accommodating new relay technologies and hybrid switching mechanisms.

Applicable sectors:

• Relay manufacturers for industrial, commercial, rail, and infrastructure applications
• System integrators and designers specifying relays for critical duty

Implementation insights:

• Mitigates safety hazards from dielectric breakdown, fire, or flashover.
• Streamlines conformity assessments for international equipment approval.

Key highlights:

• Comprehensive insulation coordination procedures
• Requirements for solid-state, hybrid, and conventional relays
• Includes evaluation and reporting guidance

Access the full standard:View IEC 63522-41:2026 on iTeh Standards

IEC TS 63222-4:2026 – Harmonic Analysis in Public Electric Power Networks

Power quality management – Part 4: Harmonic analysis on public electric power network

The complexity of today’s public electric power networks, with numerous renewable sources and nonlinear loads, increases concerns about harmonics and power quality disturbances. IEC TS 63222-4:2026 provides a detailed roadmap for harmonic modeling, analysis, and risk mitigation.

Scope and content:

• Sets model requirements and evaluation procedures for harmonic analysis up to the 40th order in power networks (low, medium, and high voltage; 50 Hz or 60 Hz systems).
• Covers component models (lines, cables, transformers, shunt devices, synchronous machines, loads), system equivalence, and practical analysis methods (frequency scanning, modal analysis, harmonic flow calculation).
• Details application scenarios: design, routine assessment, fault investigation, and network upgrades.

Target users:

• Utility engineering teams responsible for network design and power quality
• EPC contractors and grid integrators
• Manufacturers of power quality analysis and monitoring equipment

Implementation impacts:

• Enables analytical assessment of harmonics, supports compliance with power quality codes and grid connection rules.
• Aids the planning of network expansions and integration of distributed generation.

Key highlights:

• Up to 40th order harmonic modeling capabilities
• Techniques for resonance, flow, and quality analysis
• Data gathering and evaluation methodologies

Access the full standard:View IEC TS 63222-4:2026 on iTeh Standards

Industry Impact & Compliance

The introduction and revision of these standards represent more than incremental updates—they reshape how enterprises approach:

• Product design, digital cataloguing, and procurement in low-voltage assemblies
• Testing and certification of relay products for operational robustness
• Responsible e-waste processing, legal compliance, and public trust
• Ensuring fail-safe insulation in critical relay applications
• Ongoing assessment and improvement of power network quality

Compliance considerations & timelines:

• Standards are applicable from their publication or specified effective dates. Transition periods may be defined by national bodies or sector regulators.
• Non-conformance can result in shipment delays, failed certifications, or regulatory penalties, especially concerning safety and environmental standards.

Key benefits:

• Risk reduction (technical, legal, operational)
• Streamlined supply chains and digital procurement
• Improved system reliability and customer satisfaction
• Environmental responsibility and resource efficiency

Technical Insights

Common Technical Requirements

• Data integrity and standardization: For product information and digital catalogues, rigorous property definitions improve selection, traceability, and compatibility across platforms.
• Testing and validation: Harmonized test procedures in relay and insulation standards enable objective, repeatable evaluations and foster global market access.
• Lifecycle and environmental management: Integrating sustainability into processes and documentation is becoming a cornerstone for e-waste and all related equipment.
• Power network analytics: Advanced harmonic analysis methods now allow for higher-order disturbance assessment and better grid planning.

Implementation Best Practices

1. Early alignment: Integrate standard requirements at the specification phase for new products, projects, or supply chain steps.
2. Digital adoption: Utilize electronic catalogues and data exchange interfaces designed to current IEC property dictionaries.
3. Process documentation: Maintain robust testing records, QEHS documents, and traceability across the product lifecycle.
4. Training: Invest in skills/upskilling for relevant teams (engineers, quality, procurement, test labs).
5. Continuous monitoring: Apply updated testing and monitoring methodologies to track reliability/safety in operation and support predictive maintenance.

Testing and Certification

• Leverage accredited labs for conformity assessment.
• Document all procedures and test results as specified to streamline audits and market approvals.
• Implement internal audits to identify and close compliance gaps.

Conclusion / Next Steps

April 2026 marks a pivotal milestone for electrical engineering stakeholders, with these five standards raising the bar for digital product data, relay reliability, sustainability, insulation safety, and grid power quality. Organizations that act now to understand and implement these requirements will ensure continued market relevance, compliance, and performance leadership.

Recommendations:

• Review the standards linked above to evaluate their applicability for your business or technical area.
• Update procurement, design, testing, and compliance processes accordingly.
• Stay tuned for Parts 3–6 of our standards update series on iTeh Standards, and explore the full range of resources at https://standards.iteh.ai.

Stay informed, stay compliant, and ensure your electrical engineering operations meet the highest international benchmarks.