BS EN 61095:1993

INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
  3.1 General terms
  3.2 Switching devices
  3.3 Parts of switching devices
  3.4 Operation of switching devices
  3.5 Characteristic quantities
4 Classification
5 Characteristics of contactors
  5.1 Summary of characteristics
  5.2 Type of contactor
      5.2.1 Number of poles
      5.2.2 Method of control
  5.3 Rated and limiting values for main circuits
      5.3.1 General
      5.3.2 Rated voltages
      5.3.3 Currents or powers
      5.3.4 Rated frequency
      5.3.5 Rated duties
      5.3.6 Normal load and overload characteristics
      5.3.7 Rated conditional short-circuit current
6 Product information
  6.1 Nature of information
      6.1.1 Identification
      6.1.2 Characteristics, basic rated values and
             utilization
  6.2 Marking
  6.3 Instructions for installation, operation and
      maintenance
7 Normal service, mounting and transport conditions
  7.1 Normal service conditions
      7.1.1 Ambient air temperature
      7.1.2 Altitude
      7.1.3 Atmospheric conditions
      7.1.4 Normal electromagnetic environmental
             conditions
  7.2 Conditions during transport and storage
  7.3 Mounting
8 Constructional and performance requirements
  8.1 Constructional requirements
      8.1.1 General
      8.1.2 Materials
      8.1.3 Strength of screws or nuts other than
             those on terminals which are intended to
             be operated during installation or
             maintenance
      8.1.4 Vacant
      8.1.5 Actuator
      8.1.6 Indication of the OFF and ON positions
      8.1.7 Terminals
      8.1.8 Additional requirements for contactors
             provided with a neutral pole
      8.1.9 Provisions for earthing
      8.1.10 Enclosures
      8.1.11 Degrees of protection of enclosed contactors
      8.1.12 Resistance to impact
      8.1.13 Durability of markings
  8.2 Performance requirements
      8.2.1 Operating conditions
      8.2.2 Temperature-rise
      8.2.3 Dielectric properties
      8.2.4 Normal load and overload performance
             requirements
      8.2.5 Co-ordination with short-circuit protective
             devices
  8.3 Electromagnetic compatibility
      8.3.1 Immunity
      8.3.2 Emission
9 Tests
  9.1 Types of test
      9.1.1 General
      9.1.2 Type tests
      9.1.3 Routine tests
      9.1.4 Sampling tests for clearance verification
  9.2 Compliance with constructional requirements
      9.2.1 General
      9.2.2 Materials
      9.2.3 Test on screws or nuts other than those
             on terminals which are intended to be
             operated during installation or maintenance
      9.2.4 Verification of the degrees of protection of
             enclosed contactors
      9.2.5 Mechanical properties of terminals
      9.2.6 Test of resistance to impact
      9.2.7 Test of durability of marking
  9.3 Compliance with performance requirements
      9.3.1 Test sequences
      9.3.2 General test conditions
      9.3.3 Performance under no load, normal load
             and overload conditions
      9.3.4 Performance under short-circuit conditions
      9.3.5 Overload current withstand capability
      9.3.6 Routine tests
Annex A (normative) - Terminal marking and distinctive
        number
Annex B (normative) - Test sequences and number of
        samples
Annex C (normative) - Description of a method for
        adjusting the load circuit
Annex D (normative) - Determination of short-circuit
        power-factor
Annex E (normative) - Measurement of creepage
        distances and clearances
Annex F (normative) - Correlation between the nominal
        voltage of the supply system and the rated impulse
        withstand voltage of a contactor
Annex G (normative) - Hot wire ignition test
Annex H (normative) - Degrees of protection of enclosed
        contactor
Annex I (normative) - Requirements and tests for equipment
        with protective separation
Annex ZA (normative) - Normative references to international
         publications with their corresponding European
         publications

Defines the specific utilization category, conditions, requirements, tests and methods of test, for electromechanical air break contactors with main contacts intended for connection to circuits of 440 V a.c. maximum rated voltage.