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CT-009-500-50 | Current transformer 50A/333mV - for UMG 96-PQ-L-LP & 800-CT8-LP

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Product description

The CT series low power (333mV) current transformers from Janitza is a series of current transformers specially designed for the UMG 96-PQ-L-LP power analyser and the 800-CT8-LP expansion module (associated with the UMG 801 power analyser). The current transformers are available with a primary current of 50 to 250 A and have a cable length of 5 meters. The entire series has a class 0.5 accuracy.

Conductor Diameter
It is obviously important for a current transformer to fit the conductor to be measured. For the CT series current transformers, the following conductor diameters are available:
  • CT-009-500-50: 9 mm
  • CT-012-500-100: 12,3 mm
  • CT-019-500-250: 19,3 mm

Main Features of the CT Series Low Power Current Transformers:

  • Suitable for connection to the UMG 96-PQ-L-LP and 800-CT8-LP
  • Output voltage: 333mV
  • Available with a primary current of 50, 100, or 250 A
  • Suitable for conductors with a max. diameter of 19 mm
  • Equipped with a 5 m cable (24 AWG)
  • Compliant with ANSI C57.13 and IEC 61869-2 standards
  • Non-divisible



TypeCurrent transformer
Primary current50 A
Secondary current333mV
Transformation ratio

The transformation ratio indicates how the current from the primary circuit is proportionally reduced in the secondary circuit. This allows for the measurement of high currents with more manageable, lower current values in the secondary circuit, contributing to both the accuracy of the measurements and the safety of the measuring system.

Transformation ratio50/333mV
For connection toUMG 96-PQ-L-LP
UMG 800-CT8-LP

The class of a current transformer indicates the accuracy of the output current. There are different classes, with class 0.1 offering the highest accuracy and class 5 the lowest.

ClassClass 0,5
Spur length

The length of the connected cable.

Spur length5 m
CategoryCurrent transformers
Product codeJA901984
Supplier code1503344

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