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Current Transformers

API Technologies offers a wide range of current sense transformers that measure electrical current (AC & DC) and can transform current from high to low measurable values.

API series 5300 current sense transformers are available with current ranges from 3.5 to 800 amps in six subcategories of current sense transformers. 

  • Measures electrical current by transforming current from high to low measurable values
  • Wide primary current range of 3.5 to 800 amps
  • Applications include advanced fault-tolerant computers and workstations, control panels reading current flowing to transformers, telecom and communications systems
  • 50 Hz to 100 kHz operating frequency
  • Available totally encapsulated, with or without wound primary turns and loading resistor
  • Built to meet UL, MIL, VDE, CE specs. EMRL current transformers meet UL1244
  • Ideal for ampmeters, wattmeters, relays and cross current compensation
  • Innovative Snap-On load detectors mount on pre-wired systems without disrupting existing connections
  • Broad frequency response of 30Hz to 15 kHz
  • Measure currents up to 40 Amps RMS continuous and 120 Amps intermittent
  • Excellent for economical energy management and automation control
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  • Advanced fault tolerant computers and workstations
  • Control panels reading current flowing to electric transformer
  • Telecom and secure communications