UL 61810-1
Standard for Electromechanical Elementary Relays - Part 1: General Requirements

DETAILS
Edition Number:1SCC Approved:--
Edition Date:2015-07-31DOD Approved: --
Price Code:EANSI Approved: 2015-07-30
Type:uleciaiec

  • SCOPE

    1 Scope

    This part of IEC 61810 applies to electromechanical elementary relays (non-specified time all-or-nothing relays) for incorporation into low voltage equipment (circuits up to 1000 V alternate current or 1500 V direct current). It defines the basic functional and safety requirements and safety-related aspects for applications in all areas of electrical engineering or electronics, such as:

    •    general industrial equipment,

    •    electrical facilities,

    •    electrical machines,

    •    electrical appliances for household and similar use,

    •    information technology and business equipment,

    •    building automation equipment,

    •    automation equipment,

    •    electrical installation equipment,

    •    medical equipment,

    •    control equipment,

    •    telecommunications,

    •    vehicles,

    •    transportation (e.g. railways).

    Compliance with the requirements of this standard is verified by the type tests indicated.

    In case the application of a relay determines additional requirements exceeding those specified in this standard, the relay should be assessed in line with this application in accordance with the relevant IEC standard(s) (e.g. IEC 60730-1, IEC 60335-1, IEC 60950-1).

  • TABLE OF CONTENTS
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    • Cover
    • Transmittal
    • UL Harmonized Standard Title Page
    • Table of Contents
    • Deviations
    • IEC Foreword
      • ELECTROMECHANICAL ELEMENTARY RELAYS – Part 1: General requirements
        • 1 Scope
        • 2 Normative references
        • 3 Terms and definitions
          • 3.1 Definitions related to general terms
          • 3.2 Terms and definitions of relay types
          • 3.3 Terms and definitions related to conditions and operations
          • 3.4 Terms and definitions of operating values
          • 3.5 Terms and definitions related to contacts
          • 3.6 Terms and definitions related to accessories
          • 3.7 Terms and definitions related to insulation
        • 4 Influence quantities
        • 5 Rated values
          • 5.1 General
          • 5.2 Rated coil voltage/rated coil voltage range
          • 5.3 Operative range
          • 5.4 Release
          • 5.5 Reset
          • 5.6 Electrical endurance
          • 5.7 Frequency of operation
          • 5.8 Contact loads
          • 5.9 Ambient temperature
          • 5.10 Categories of environmental protection
          • 5.11 Duty factor
        • 6 General provisions for testing
        • 7 Documentation and marking
          • 7.1 Data
          • 7.2 Additional data
          • 7.3 Marking
          • 7.4 Symbols
        • 8 Heating
          • 8.1 Requirements
          • 8.2 Test set-up
          • 8.3 Test procedure
          • 8.4 Terminals
        • 9 Basic operating function
          • 9.1 General test conditions
          • 9.2 Operate (monostable relays)
          • 9.3 Operate/reset (bistable relays)
        • 10 Dielectric strength
          • 10.1 Preconditioning
          • 10.2 Dielectric strength
          • 10.3 Special cases for test procedure B
        • 11 Electrical endurance
          • 11.1 General
          • 11.2 Overload and endurance test
          • 11.3 Failure and malfunction criteria
          • 11.4 Final dielectric test
        • 12 Mechanical endurance
        • 13 Clearances, creepage distances and solid insulation
          • 13.1 General provisions
          • 13.2 Clearances and creepage distances
          • 13.3 Solid insulation
          • 13.4 Accessible surfaces
          • 13.5 Solid insulation in the coil assembly as part of the insulation coordination
        • 14 Terminations
          • 14.2 Screw terminals and screwless terminals
          • 14.3 Flat quick-connect terminations
          • 14.4 Solder terminals
          • 14.5 Sockets
          • 14.6 Alternative termination types
        • 15 Sealing
        • 16 Heat and fire resistance
    • Annex A(normative)Explanations regarding relays
    • Annex B(informative)Inductive contact loads
    • Annex C(normative)Test set-up
    • Annex D(informative)Special loads
    • Annex E(normative)Heating test arrangement
    • Annex F(normative)Measurement of clearances and creepage distances
    • Annex G(normative)Relation between rated impulse voltage, nominal voltage and overvoltage category
    • Annex H(normative)Pollution degrees
    • ANNEX I(normative)Proof tracking test
    • ANNEX J(informative)Schematic diagram of families of terminations
    • ANNEX K(normative)Glow-wire test
    • ANNEX L(normative)Ball pressure test
    • ANNEX M(informative)Needle flame test
    • ANNEX N(informative)Resistance for standard soldering processes
    • ANNEX O(informative)Risk assessment
    • Annex DVA (normative)Standard references
    • Annex DVB(normative)
    • ANNEX DVC(normative)Insulating material requirements
    • Alphabetical list of terms
    • Bibliography