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M54133 - EARTH LEAKAGE CURRENT DETECTOR

General Description

The UTC M54133 is a semiconductor integrated circuit developed for use in high-speed earth leakage breakers incorporating functions to protect against voltage surges and inverter noise.

Key Features

  • S.
  • Improvement of ability against unwanted tripping by lightning-surge and lightning impulse. Two times counting system adopted.
  • Improvement of ability against unwanted tripping by inverter-noise. Built-in operational amplifier (of low current dissipation) for active low-pass filter. Improved high-frequency, high harmonic superposition performance.
  • Internal time delay function.
  • An external capacitor is used to set the delay time.
  • High input sensitivity: VT=11.5mVrms T.

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UNISONIC TECHNOLOGIES CO., LTD M54133 LINEAR INTEGRATED CIRCUIT EARTH LEAKAGE CURRENT DETECTOR  DESCRIPTION The UTC M54133 is a semiconductor integrated circuit developed for use in high-speed earth leakage breakers incorporating functions to protect against voltage surges and inverter noise.  FEATURES * Improvement of ability against unwanted tripping by lightning-surge and lightning impulse. Two times counting system adopted. * Improvement of ability against unwanted tripping by inverter-noise. Built-in operational amplifier (of low current dissipation) for active low-pass filter. Improved high-frequency, high harmonic superposition performance * Internal time delay function * An external capacitor is used to set the delay time. * High input sensitivity: VT=11.5mVrms Typ.