Search scope:
Shopping cart (0)
Information Well-founded knowledge for your practice: The basic training course on standards - understand, apply, decide with confidence! To the basic training
Standard

IEC 60056:1987 ED4

Replaced
Preview

Existing or new amendments and versions must be purchased separately.

Language
Services

Abstract

Applies to a.c. circuit-breakers designed for indoor or outdoor installation and operation at frequencies up to and including 60 Hz on systems having voltages above 1 000 V. Applies only to three-pole circuit-breakers for use in three-phase systems and single-pole circuit-breakers for use in single-phase systems. Two-pole circuit-breakers for use in single-phase systems are subject to agreement between manufacturer and user. Also applies to the operating devices of circuit-breakers and their auxiliary equipment. However, circuit-breakers with a closing mechanism for dependent manual operation are not covered since a rated short-circuit-making current cannot be specified, and dependent manual operation may be objectionable because of safety considerations. Does not cover circuit-breakers intended for use on motive power units of electrical traction equipment, or circuit-breakers for use with overhead lines which include series capacitors. Replaces IEC 60056-1 to 60056-6.

Products specifications

  • Standard from IEC
  • Published:
  • Withdrawn:
  • Edition: 4
  • Document type: IS
  • Pages
  • Publisher: IEC
  • Distributor: IEC
  • ICS: 29.130.10
  • International TC: TC 17/SC 17A

Product Relations

Product life cycle