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Rayleigh Instruments

Manufacturer and stockist of an extensive range of energy monitoring products

Three Phase CTs

Current Transformers

Our extensive range of single phase and three phase current transformers includes moulded case, measuring, protection, toroidal, saturation, summation, core balanced, split core and high accuracy transformers, and of course Rayleigh Instruments patented easywire© current transformers.

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TAS250-EW Easywire Three Phase Measuring Current Transformer

  • Ranges: 800 to 1600 A (330 mV Secondary).
  • Cable aperture : 3 @ 54 x 50 mm.
  • Accuracy Class 1.
  • Housing Material Self extinguishing Nylon IEC185 classification VO according to UL-94.
  • Weight : 1200 g.

TAS248-EW Easywire Three Phase Measuring Current Transformer

  • Ranges: 250 to 630 A (330 mV Secondary).
  • Cable aperture : 3 @ 31 x 31 mm.
  • Accuracy Class 1.
  • Housing Material Self extinguishing Nylon IEC185 classification VO according to UL-94.
  • Weight : 680 g.
    Dimensions
    H=90, W=140, D=52 mm

TAS242-EW Easywire Three Phase Measuring Current Transformer

  • Ranges: 60 to 250 A (330 mV Secondary).
  • Cable aperture : 3 @ 21 x 25 mm.
  • Accuracy Class 1.
  • Housing Material Self extinguishing Nylon IEC185 classification VO according to UL-94.
  • Weight: 550 g.

Dimensions
H=80, W=105, D=86mm

TAS240-EW Easywire Three Phase Measuring Current Transformer

  • Ranges: 60 to 160 A (330 mV Secondary).
  • Cable aperture : 3 @ 15.5 x 30 mm.
  • Accuracy Class 1.
  • Housing Material Self extinguishing Nylon IEC185 classification VO according to UL-94.
  • Weight : 500 g.

Dimensions
H=80, W=75, D=75

TAS-250 Three Phase Current Transformer RI-CT250

  • Three Phase Measuring Current Transformers.
  • Primary Current Ratios: 630 to 1600 A.
  • Secondary Current: 5 A.
  • Cable Aperture: 3 @ 54 x 50 mm with a 70 mm Hole Aperture Centre.
  • Class Accuracy: Cl0.5, Cl1 and Cl3.
  • Reference Standards : EN60044–1.
  • Temperature Range : Working –25 to +50˚C, relative humidity 85%.
  • Frequency : 47…63 Hz (400 Hz on request).
  • System Voltage : 720 V max.
  • Test Voltage : 3 kV for 1 minute.
  • Housing Material Self extinguishing Nylon IEC185 classification VO according to UL-94.
  • Secondary terminals M4 Screws.
  • Sealable terminal cover included.
  • Weight : 1200 g.

TAS-248 Three Phase Current Transformer RI-CT248

  • Three Phase Measuring Current Transformers.
  • Primary Current Ratios: 250 to 630 A.
  • Secondary Current: 5 A.
  • Cable aperture : 3 @ 31 x 31 mm with a 45 mm Hole Apeture Centre.
  • Class Accuracy: Cl0.5, Cl1 and Cl3.
  • Reference Standards : EN60044–1.
  • Temperature Range : Working –25 to +50˚C, relative humidity 85%.
  • Frequency : 47…63 Hz (400 Hz on request).
  • System Voltage : 720 V max.
  • Test Voltage : 3 kV for 1 minute.
  • Housing Material Self extinguishing Nylon IEC185 classification VO according to UL-94.
  • Secondary terminals M4 Screws.
  • Sealable terminal cover included.
  • Weight : 680 g.

TAS-242 Three Phase Current Transformer RI-CT242

  • Three Phase Measuring Current Transformers.
  • Primary Current Range: 60 to 250 A.
  • Secondary Current Ratios: 5 A.
  • Cable aperture : 3 @ 21 x 25 mm with a 35 mm Hole Apeture Centre.
  • Class Accuracy: Cl0.5, Cl1 and Cl3.
  • Reference Standards : EN60044–1.
  • Temperature Range : Working –25 to +50˚C, relative humidity 85%.
  • Frequency : 47…63 Hz (400 Hz on request).
  • System Voltage : 720 V max.
  • Test Voltage : 3 kV for 1 minute.
  • Housing Material Self extinguishing Nylon IEC185 classification VO according to UL-94.
  • Secondary terminals M4 Screws.
  • Sealable terminal cover included.
  • Weight : 550 g.

TAS-240 Three Phase Current Transformer RI-CT240

  • Three Phase Measuring Current Transformers.
  • Primary Current Range: 60 to 200 A.
  • Secondary Current Ratios: 5 A.
  • Cable aperture : 3 @ 15.5 x 30 mm with a 25 mm Hole Aperture Centre.
  • Class Accuracy Cl0.5, Cl1 and Cl3.
  • Reference Standards : EN60044–1.
  • Temperature Range : Working –25 to +50˚C, relative humidity 85%.
  • Frequency : 47…63 Hz (400 Hz on request).
  • System Voltage : 720 V max.
  • Test Voltage : 3 kV for 1 minute.
  • Housing Material Self extinguishing Nylon IEC185 classification VO according to UL-94.
  • Secondary terminals M4 Screws.
  • Sealable terminal cover included.
  • Weight : 500 g.
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