LF305-S LEM | Alldatasheet

Document overview

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  • PDF pages: 2

Technical content

Features

  • Closed loop (compensated) current transducer using the Hall effect
  • Insulated plastic case recognized according to UL 94-V0. Advantages
  • Excellent accuracy
  • Very good linearity
  • Low temperature drift
  • Optimized response time
  • Wide frequency bandwidth
  • No insertion losses
  • High immunity to external interference
  • Current overload capability.

Applications

  • AC variable speed drives and servo motor drives
  • Static converters for DC motor drives
  • Battery supplied applications
  • Uninterruptible Power Supplies (UPS)
  • Switched Mode Power Supplies (SMPS)
  • Power supplies for welding applications. IPN = 300 A LEM Components www .lem.com Preliminary
  • IS is positive when IP flows in the direction of the arrow.
  • Temperature of the primary conductor should not exceed 100°C.
  • Dynamic performances (di/dt and response time) are best with a single bar completely filling the primary hole.
  • This is a standard model. For different versions (supply voltages, turns ratios, unidirectional measurements...), please contact us. Mechanical characteristics
  • General tolerance ± 0.5 mm
  • Fastening see drawing
  • Primary through-hole ∅ 20 mm
  • Connection of secondary Molex 5045-03/AG Dimensions LF 305-S (in mm. 1 mm = 0.0394 inch) Right view Back viewTop view Secondary terminals Pin + : supply voltage + 12 .. 20 V Pin M : measure Pin - : supply voltage - 12 .. 20 V Bottom view Connection LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.