SIST EN IEC 62626-1:2025 PDF

Overview

EN IEC 62626-1:2025 (aligned with IEC 62626-1:2023 RLV) specifies additional requirements for enclosed switch-disconnectors used to provide isolation of electrical equipment during repair, cleaning and maintenance in specific applications. The standard applies to devices with rated voltages up to 1 000 V AC and covers enclosed, locally mounted switch-disconnectors that comply with IEC 60947-3. These devices are intended for isolation (often called “maintenance switches” or “safety switches”) and are not designed for remote control, automatic switching, or operational switching tasks such as quick start/stop or jogging. This edition (2025/2023) supersedes the 2014 version and updates requirements in line with IEC 60947-1:2020.

Key Topics and Requirements

The standard focuses on practical safety and performance characteristics. Key technical topics include:

• Scope and classification of enclosed switch-disconnectors for maintenance isolation.
• Constructional requirements: enclosure design, locking arrangements and protection against environmental influences.
• Marking and product information: front-marking, additional markings and required documentation for safe use.
• Mechanical and electrical performance: mechanical strength, degree of protection (IP/IK considerations), and switching capacity requirements consistent with IEC 60947 series.
• Operation/actuation requirements to prevent unintended operation during maintenance.
• Testing: type tests and performance verification procedures to demonstrate conformity.
• Emphasis that devices are not fitted for remote or automatic switching to avoid unexpected starts and that isolation may not prevent re-energization from non-electrical energy sources.

Applications and Who Uses It

EN IEC 62626-1 is essential for:

• Manufacturers of low-voltage enclosed switch-disconnectors and maintenance switches.
• Test laboratories and certification bodies validating compliance and safety.
• Electrical designers, specifiers and OEMs selecting isolation devices for motor circuits and equipment.
• Installation and maintenance teams, safety managers and procurement professionals**-to ensure correct selection and safe installation of isolation devices near the equipment being serviced.

Common applications: motor starter panels, machine tool isolation, local equipment isolation for cleaning or repair where reliable manual isolation is required.

Related Standards

• IEC 60947-3 (switches, disconnectors, switch-disconnectors)
• IEC 60947-1 (general rules) - update referenced in this edition
• Other referenced standards: IEC 60204-1, IEC 60529, IEC 62262, ISO 13850

Keywords: EN IEC 62626-1:2025, IEC 62626-1:2023, enclosed switch-disconnectors, low-voltage switchgear, isolation, maintenance switches, IEC 60947-3, low-voltage switchgear and controlgear.