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  • Split core current transformer KBR

  • Current transformers

  • Split core current transformers of the KBR series for primary nominal currents from 50 A up to 1000 A are ideal for subsequent installation into existing systems. The special “click” system enables a “one-handed” quick installation .

    The KBR transformers are available with secondary current of 5 A / 1 A, as current sensor (0…333 mV) or as transformer (4…20 mA DC) and come in three different sizes.

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  • Description
  • Specifications
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Performance characteristics:

  • • Ideal for subsequent installation into existing systems
  • • The special “click” system enables a “one-handed” installation
  • • Available as
  •      • current sensor (0…333 mV),
  •      • transformer  (4…20 mA DC) or with
  •      • secondary current of 5 A / 1 A AC
  • • Primary current: 50 - 1000 A
  • • Auxiliary voltage supply via output circuit (two-strand wire technology)
  • • Three different designs
  • • Unbreakable plastic housing made of grey
    polyamide, flame resistant
  • • Length of connection lead:
  •      • sec. 1A:        2.5 m, cross-section 2 x 0.75 mm²
  •      • sec. 5A:        0.5 m, cross-section 2 x 1.5 mm²
  •      • 0...333 mV:   2.5 m, cross-section 2 x 0.75 mm²
  •      • 4...20 mA:     2.5 m, cross-section 2 x 0.75 mm²
  •      • (different length on request)
  • • Working temperature range:  -5°C < T < +50°C
  • • Storage temperature range:  -25°C < T < +70°C
  • • Therm. nominal continuous current Icth:  1.2 x IN
  • • Therm. nominal short-time current Ith:  60 x IN, 1 sec.
  • • Operating voltage  Um:  0.72 kV max.
  • • Insulation test voltage:  3 kV, Ueff, 50 Hz, 1 min.
  • • Nominal rated frequency: 50 Hz
  • • Insulation class:  E
  • • Technical standards used:  IEC 61869-1/ 2
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