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OPTO current transformers

Current transformer with integrated trip threshold detection capa-bility. When the pre-set trip current is reached or exceeded, light pulses will be emitted. A fibre optic cable is used to transmit light pulses from the CT to the evaluation unit in the housing.

Opto F+E 3.0: The mechanical dimension of the earth fault CT must be large enough to fit around all three phases.


Product

Note Item Number

Short-circuit current transformer

  • For short-circuit and earth fault indicators type Opto F 3.0, Opto F+E 3.0
  • Trip currents 400, 600, 800 or 1.000 A
  • For conductor Ø 22 – 42 mm
Item Number49-0101-202

Short-circuit current transformer

  • For short-circuit and earth fault indicators type Opto F 3.0, Opto F+E 3.0
  • Trip currents 400, 600, 800 or 1.000 A
  • For conductor Ø 40 – 60 mm
Item Number49-0101-203

Short-circuit current transformer

  • For short-circuit and earth fault indicators type Opto F 3.0, Opto F+E 3.0
  • Trip currents 400, 600, 800 or 1.000 A
  • For conductor 20 x 4 – 40 x 10 mm
Item Number49-0101-206

Earth fault current transformers

  • For short-circuit and earth fault current transformer  Opto F+E 3.0
  • Trip current: 40, 80, 120 or 160 A
  • For conductor up to 115 mm
Item Number49-6014-009

Earth fault current transformer

  • For short-circuit and earth fault current transformer  Opto F+E 3.0
  • Trip current: (10), (20), 40 or 80 A
  • For conductor up to 115 mm
Item Number49-6014-007

Earth fault current transformer

  • For short-circuit and earth fault current transformer  Opto F+E 3.0
  • Trip current: 80, 120, 160 or 200 A
  • For conductor Ø 280 x 50 mm, oval summation CT  for SF6 gas-insulated switch-gears
Item Number49-6014-022

Earth fault current transformer

  • For short-circuit and earth fault current transformer  Opto F+E 3.0
  • Trip current: 80, 120, 160 or 200 A
  • For conductor Ø 350 x 50 mm, oval summation CT for air-insulated switchgears
Item Number49-6014-021


Accessories

Other

Fibre optic cable

Fibre optic cable: 3 m (standard length for short-circuit current transformers)

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49-0602-009
Fibre optic cable

Fibre optic cable: 4 m (standard length for earth fault current transformers)

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49-0602-001
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