Precise and user friendly LCD tripping units

Simplify your work

Besides their easy mounting and connection, strength and good continuity of operation, 3 types of electronic units allow precise adjustment of different limits for current values and time delay. The result is an efficient protection against electrical faults while maintaining total discrimination with downstream breakers.
The LCD display lets you monitor the measured current values and informs you on fault adjustement and log (the cause of last trip and maintenance operations)

  • MP4 LI ELECTRONIC PROTECTION UNIT CAT.  N°     288 00

    The following settings are adjusted using rotary selector switches:
    • Long time delay protection against overloads: Ir
    • Long delay protection operation time: tr
    • Short time delay protection against short circuits: Im
    • Neutral protection: IN

  • MP4 LSI ELECTRONIC PROTECTION UNIT CAT. N° 288 01

    The following settings are adjusted using rotary selector switches:
    • Long time delay protection against overloads: Ir
    • Long delay protection operation time: tr
    • Short time delay protection against short circuits: Im
    • Short time delay protection operation time: tm
    • Instantaneous protection against very high short circuits: Ii
    • Neutral protection: IN

  • MP4 LSIG ELECTRONIC PROTECTION UNIT CAT. N° 288 02

    The following settings are adjusted using rotary selector switches:
    • Long time delay protection against overloads: Ir
    • Long delay protection operation time: tr
    • Short time delay protection against short circuits: Im
    • Short time delay protection operation time: tm
    • Instantaneous protection against very high short circuits: Ii
    • Earth fault current: Ig
    • Time delay on earth fault tripping: tg
    • Neutral protection: IN

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    MP6 LSI TOUCH SCREEN PROTECTION UNIT CAT. N° 0 288 03

    The following settings are adjusted using rotary selector switches:
    • Long time delay protection against overloads: Ir
    • Long delay protection operation time: tr
    • Short time delay protection against short circuits: Im
    • Short time delay protection operation time: tm
    • Instantaneous protection against very high short circuits: Ii
    • Neutral protection: IN
     
     

 

  • LEGRAND ADVANTAGE : OPTIMIZED SPACE INSIDE ENCLOSURE

    All protection units are equipped with batteries so you can monitor the parameters even when the breaker is not connected.