Model# 3CTR

3 in 1 RMS Current Transducer

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Detailed Model Specs

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Frequency Range: 48 to 420Hz
Burden: 0.4VA F.S.
Current Overload:
– 1-10A Range: 2 X F.S.(cont.)
– 15-20A Range: 1.25 X F.S.(cont.)
– 1A Range: 10A (10 sec. transient)
– All other Ranges: 50A (10 sec. transient)
– 250A (1 sec. transient)
Dielectric Test: (Input/Output/Case) 2500Vac

Output Ripple: 
<1.0% F.S.
Response (90%): 100ms
Output Loading (Ω):
– 0-1mA: 0-10K
– 0-10Vdc, 0-5Vdc: 2K min.
– 4-20mA: 0-500
Field Adjustable Cal: ± 10%

ACCURACY – (Includes effects of linearity and repeatability.)
– ± 0.25% F.S. at 60Hz
– ± 0.5% F.S. over frequency range
Temperature Effect: (-20°C to +60°C) ± 1.0% Rdg.
Instrument Power:
– (Std.) 85-265Vac, 5VA
– (Std.) 48-420Hz, 5VA
– or 110-370Vdc, 5VA
Weight: 2.5Lbs.

  • Designed for use in applications where measurement of non-sinusoidal waveforms is required.
  • Designed for use on three-phase systems, but may also be used to monitor three single phase circuits where panel space is limited.
  • Use with current transformers for high current applications.
  • Accurate measurement of the true RMS value of input signals over a wide frequency range.
  • Accurate to 0.25% Full Scale
  • Designed to withstand motor start-up transients.
  • Input/output isolation.