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 adjustment and log (the cause of last trip and maintenance operations).


 

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


MP4 LI electronic
protection unit
Cat. N°0 288 00

MP4 L SI electronic
protection unit
Cat. N°0 288 01

MP4 L SIG electronic
protection unit
Cat. N°0 288 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
- Neutral protection: IN

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

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


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

MP6 LSIg TOUCH SCREEN
PROTECTION UNIT
CAT. N° 0 288 04

 

The following settings are adjusted using the touch screen:

- 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

 

The following settings are adjusted using the touch screen: 
- 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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