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Insulated Case Circuit Breakers -  Micrologic Trip Units

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Overview

 

The new Micrologic® trip units make adding functionality, literally, a snap. They plug directly into Masterpact® NW/NT power circuit breakers and can be installed easily on site. This family of trip units includes four models with varying levels of functionality:

  • Micrologic 3.0 and 5.0 -- basic overcurrent protection including long-time, instantaneous and optional short-time adjustments for overloads and short circuits.
  • Micrologic 3.0A and 5.0A and 6.0A -- long-time, instantaneous and optional short-time adjustments, integrated ammeter and phase loading bar graph, LED trip indicator, zone selective interlocking with downstream breakers, optional ground-fault protection, optional Modbus® communication interface.
  • Micrologic 5.0P and 6.0P -- long-time, instantaneous and short-time adjustments, advanced relay functions, inverse definite minimum time lag (Idmtl) long-time delay curve shaping for improved coordination, basic power monitoring and metering functions, standard Modbus communication interface compatible with PowerLogic® product installations, GF alarm standard, 6.0P adds ground-fault protection for equipment.
  • Micrologic 5.0H and 6.0H -- includes all 5.0P and 6.0P functions, enhanced monitoring and metering capabilities, basic power quality (harmonic) measurement, waveform capture.
  
 
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