IEC 61810-4:2020

Overview

IEC 61810-4:2020 is an international standard issued by the International Electrotechnical Commission (IEC) focusing on electromechanical elementary relays, specifically those that utilize reed switches (reed contacts). This part of the IEC 61810 series outlines the general and safety requirements applicable to reed relays used in a wide range of general control circuits. It establishes functional and safety benchmarks aligned with the broader IEC 61810 series and IEC 62246 series, serving various fields including electrical engineering and electronics.

This standard supplements IEC 61810-1 by specifying technical deviations and additional provisions necessary for reed relays. It defines testing protocols-covering type tests, routine tests, special tests, and environmental tests-to ensure reed relays meet rigorous service conditions in diverse applications.

Key Topics

• Scope and Application
  IEC 61810-4:2020 applies to reed relays integrated into general control circuits, reflecting their use in multifunctional environments. The document supplements primary relay standards with requirements unique to reed switch technology.

• Functional and Safety Requirements
  The standard details basic operational functions and essential safety criteria safeguarding performance and reliability in different electrical and electronic contexts.

• Testing Procedures
  Comprehensive testing is mandated, including:

  • Type tests to validate design compliance.
  • Routine tests for manufacturing quality assurance.
  • Special tests addressing specific relay categories or environments.
  • Environmental tests ensuring relay operation under varied temperature, vibration, and shock scenarios.

• Documentation and Marking
  Requirements ensure clear relay identification and traceability, assisting manufacturers, installers, and users to verify compliance and technical data.

• Electrical and Mechanical Endurance
  Standards for endurance testing confirm that reed relays sustain intended lifecycle demands without compromising performance or safety.

• Dielectric Strength and Insulation
  Defined criteria ensure electrical insulation and dielectric resistance comply with operational safety standards.

• Heat, Fire, and Short Circuit Resistance
  The standard enforces provisions to withstand thermal stress, flame propagation, and short circuit events.

• Environmental Influence
  Specific recommendations cover vibration and shock resistance to assure relay integrity in transportation, industrial, and other demanding use cases.

• Special Considerations for Railway Applications
  Annexes include targeted requirements and tests for reed relays used in railway rolling stock, emphasizing robustness and reliability.

Applications

IEC 61810-4:2020 reed relays are broadly employed in sectors requiring reliable switching elements such as:

• Household Appliances: Controls in devices ensuring consistent electrical performance.
• Security Systems: Reliable operation in monitoring and protective equipment.
• Measuring Instruments: Precision switching for test and measurement reliability.
• Medical Equipment: High safety standards for critical healthcare devices.
• Semiconductor and Chip Testing: Fast and accurate switching in automated test equipment.
• Information and Communication Technologies: Integration in network and telecom systems.
• Power Distribution: Safe and dependable relay functions in electrical grids.
• Transit and Railway Systems: Specialized relay applications ensuring operational safety in rolling stock.

This standard supports manufacturers and users to achieve compliance with international safety and functional expectations, thereby enhancing the reliability and lifespan of reed relays in vital control systems.

Related Standards

• IEC 61810-1: Electromechanical elementary relays - Part 1: General and safety requirements. IEC 61810-4 extends and modifies requirements defined here for reed relays.

• IEC 62246 Series: Standards governing reed contacts themselves, whose requirements are complementary to those in IEC 61810-4 for reed-type relay contacts.

• IEC Technical Vocabulary (IEV): Provides terminology critical for understanding and applying electrotechnical standards.

• ISO/IEC Directives, Part 2: Governs the rules and processes for drafting international standards followed in developing IEC 61810-4.

Keywords: IEC 61810-4, reed relays, electromechanical elementary relays, reed switches, relay safety requirements, relay testing, electrical standards, electrotechnical standards, relay endurance, dielectric strength, relay environmental testing, railway relay standards.