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  2. Utilization categories - Wikipedia

    en.wikipedia.org/wiki/Utilization_categories

    60947-4-3 AC-55b Switching incandescent lamps 60947-4-3 AC-56a Switching transformers 60947-4-3 AC-56b Switching of capacitor batteries 60947-4-3 AC-58a Control of a hermetically sealed refrigeration compressor motor with automatic reset of overload releases: 8-hour operation with starting currents for starting, maneuvering, operation 60947-4-2

  3. Disconnector - Wikipedia

    en.wikipedia.org/wiki/Disconnector

    IEC standard 62271-102 defines the functionality and features of a disconnector. Disconnectors have provisions for a lockout-tagout so that inadvertent operation is not possible. In high-voltage or complex systems, these locks may be part of a trapped-key interlock system to ensure proper sequence of operation.

  4. Contactor - Wikipedia

    en.wikipedia.org/wiki/Contactor

    Example IEC categories in standard 60947 are described as: AC-1 - Non-inductive or slightly inductive loads, resistance furnaces; AC-2 - Starting of slip-ring motors: starting, switching-off; AC-3 - Starting of squirrel-cage motors and switching-off only after the motor is up to speed. (Make Locked Rotor Amps (LRA), Break Full Load Amps (FLA))

  5. IO-Link - Wikipedia

    en.wikipedia.org/wiki/IO-Link

    At the master pin 1 to pin 3 provides 24V DC power with max. 200 mA for an optional power supply of the IO-Link device. Pin 4 is used as a digital input (DI) or digital output (DO) according to the IEC 61131-2 specification to allow backward compatibility to proximity sensors according to IEC60947-5-2 or other sensors or electrical switches.

  6. IEC connectors - Wikipedia

    en.wikipedia.org/wiki/IEC_connectors

    IEC 60906-2, up to 125 V AC; IEC 60906-3, safety extra-low voltage, 6 V, 12 V, 24 V, 48 V AC and DC This page was last edited on 18 October 2021, at 19 ...

  7. List of IEC standards - Wikipedia

    en.wikipedia.org/wiki/List_of_IEC_standards

    IEC 60724 Short-circuit temperature limits of electric cables with rated voltages of 1 kV (U m = 1,2 kV) and 3 kV (U m = 3,6 kV) IEC TR 60725 Consideration of reference impedances and public supply network impedances for use in determining the disturbance characteristics of electrical equipment having a rated current ≤75 A per phase