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About This Item

 

Full Description

Hand operated and automatic types used with a.c. and d.c. motors of rated voltages up to 11 kV a.c. and 650 V d.c. Resistors, auto-transformers and similar associated equipment. Ratings, sizes, design and construction, temperature rise limits, type and routine tests, resistor duty ratings. Appendices on temperature measurement, clearance and creepage distances, resistor duty cycles, maximum starting times.

All current amendments available at time of purchase are included with the purchase of this document.
 

Document History

  1. BS EN IEC 60947-4-1:2019


    Low-voltage switchgear and controlgear-Contactors and motor-starters. Electromechanical contactors and motor-starters

    • Most Recent
  2. BS EN 60947-4-1:2010+A1:2012


    Low-voltage switchgear and controlgear-Contactors and motor-starters. Electromechanical contactors and motor-starters

    • Historical Version
  3. BS EN 60947-4-1:2010


    Low-voltage switchgear and controlgear. Contactors and motor-starters. Electromechanical contactors and motor-starters

    • Historical Version
  4. BS EN 60947-5-1:2004+A1:2009


    Low-voltage switchgear and controlgear-Control/circuit devices and switching elements. Electromechanical control circuit devices

    • Historical Version
  5. BS EN 60947-4-1:2001


    Low-voltage switchgear and controlgear-Contactors and motor-starters. Electromechanical contactors and motor-starters

    • Historical Version
  6. BS EN 60947-5-1:2004


    Specification for low-voltage switchgear and controlgear. Control circuit devices and switching elements. Electromechanical control circuit devices

    • Historical Version
  7. BS EN 60947-5-1:1998


    Specification for low-voltage switchgear and controlgear. Control circuit devices and switching elements-Electromechanical control circuit devices

    • Historical Version
  8. BS EN 60947-5-1:1997


    Specification for Low-Voltage Switchgear and Controlgear - Part 5: Control Circuit Devices and Switching Elements - Section 1: Electromechanical Control Circuit Devices

    • Historical Version
  9. BS EN 60947-4-1:1992


    Specification for low-voltage switchgear and controlgear. Contactors and motor-starters-Electromechanical contactors and motor-starters

    • Historical Version
  10. BS EN 60947-5-1:1992


    Specification for low-voltage switchgear and controlgear. Control circuit devices and switching elements-Electromechanical control circuit devices

    • Historical Version
  11. BS 5424-1:1977


    Specification for controlgear for voltages up to and including 1000 V a.c. and 1200 V d.c.-Contactors

    • Historical Version
  12. BS 4941-1:1979


    Specification for motor starters for voltages up to and including 1000 V a.c. and 1200 V d.c.-Direct-on-line (full voltage) a.c. starters

    • Historical Version
  13. BS 4794-2-2.20:1982


    Specification for control switches (switching devices, including contactor relays, for control and auxiliary circuits, for voltages up to and including 1000 V a.c. and 1200 V d.c.)-Position switches with positive opening operation

    • Historical Version
  14. BS 4794-1:1979


    Specification for control switches (switching devices, including contactor relays, for control and auxiliary circuits, for voltages up to and including 1000 V a.c. and 1200 V d.c.)-General requirements

    • Historical Version
  15. BS 4794-2 SECTIONS 2.5+AND 2.6:1978


    Specification for control switches (switching devices, including contactor relays, for control and auxiliary circuits, for voltages up to and including 1000 V a.c. and 1200 V d.c.)-Indicator lights. Standardization of fixing hole of single hole mounted push-buttons and indicator lights

    • Historical Version
  16. BS 4941-4:1977


    Specification for motor starters for voltages up to and including 1000 V a.c. and 1200 V d.c.-Reduced voltage a.c. starters, two-step auto-transformer starters

    • Historical Version
  17. BS 4794-2 SECTIONS 2.3+AND 2.4:1977


    Specification for control switches (switching devices, including contactor relays, for control and auxiliary circuits, for voltages up to and including 1000 V a.c. and 1200 V d.c.)-Contactor relays. Pilot switches

    • Historical Version
  18. BS 4941-2:1977


    Specification for motor starters for voltages up to and including 1000 V a.c. and 1200 V d.c.-Reduced voltage a.c. starters, star delta starters

    • Historical Version
  19. BS 4941-3:1977


    Specification for motor starters for voltages up to and including 1000 V a.c. and 1200 V d.c.-Rheostatic rotor starters

    • Historical Version
  20. BS 4794-2-2.2:1977


    Specification for control switches (switching devices, including contactor relays, for control and auxiliary circuits, for voltages up to and including 1000 V a.c. and 1200 V d.c.)-Additional requirements for rotary control switches

    • Historical Version
  21. BS 4794-2-2.1:1977


    Specification for control switches (switching devices, including contactor relays, for control and auxiliary circuits, for voltages up to and including 1000 V a.c. and 1200 V d.c.)-Push-buttons and related control switches

    • Historical Version
  22. BS 587:1957

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    Specification. Motor starters and controllers

    • Historical Version