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4LSF Ratio 100mA Output Current Transformer by Sentran

Manufacturer: Sentran
SKU: 4LSF-100mA
Availability: 15 in stock
Non-Stock Lead Time: 1-2 Weeks
Minimum Order Quantity is 1
Products specifications
Attribute nameAttribute value
Input Rating (A)100, 200, 1200, 1600
Ratio1000:1, 2000:1, 12000:1, 16000:1
Output0.1 A
Error %1
Opening (greatest dim.)0.75 in (19 mm), 1 in (25 mm), 3.5 in (89 mm), 6 in (152 mm)


Sentran Model 4LSF split current transformers are the indoor type for Measurement Category Class IV

  • They are used in energy monitoring and general electrical current sensing for field installations
  • The 4LSF has been designed and manufactured in the US
  • They also meet the requirements of UL2808 and are provided with either internal burden resistors that set the AC output voltage or current ratios for up to 0.333A output
  • Specifications
    • Input Current: AC current max, sine wave, single phase 50/60Hz
    • Voltage Rating: 600VAC, rated CAT IV
    • Bandwidth: 50Hz and 60Hz
    • Standard Accuracy: Class 1 per C57.1301 IEC 61869
    • Optional Accuracies: Class 0.5 per Table 201 IEC 61869
    • Output Resistance: < 100 Ω typical
    • Altitude: Up to 2000 meters
    • Interface Resistance Must be > 100 kΩ
Part NoOpening (in)Input Rating (A)
4LSF-400A:100mA-1.5x1.5(1%) On it's own page1.5400
4LSF-800A:100mA-3.0x3.5(1%) On it's own page3 x 3.5800
4LSF-1200A:100mA-3.0x3.5(1%)3 x 3.51200
4LSF-1600A:100mA-4.0x6.0(1%)4 x 61600