The miniature circuit breakers of the Series Hti are the biggest breakers within our range of MCB’s (210 g/pole). They are meant to be used for heavier applications, their nominal current goes upto 125A and they have a calibration temperature of 40°C (for the other MCB’s within our range this is 30°C, except for the Series GT).
This is also reflected in the terminal capacity for rigid cables, 70mm 2 , while for other miniature circuit breakers this is maximum 16 (C-series) or 35mm 2.
Following add-on devices are available for this product: auxiliary contacts, shunt trip (Tele L) and panel board switch (PBS).
No accessories are available for the Series Hti.
See below the main features for this range.
|Features / Producttypes||Hti|
|Short circuit breaking capacity (Acc.to EN/IEC 60947-2, curves B,C) (kA)||10, 15|
|Tripping characteristics||B, C, D|
|Thermal settings ln (A)||80-100-125|
|Rated voltage AC Un (V)||230/400|
|Minimum operating voltage U B min (V)||12|
|Tropicalisation acc.to EN/IEC 60068-2||95%RH at 55°C|
|Terminal capacity flexible/rigid cable (mm 2 )||70|
|Tele U (Undervoltage release)||–|
|Tele L (Shunt Trip)||yes|
|Tele MP (Motor Operator)||–|
|PBS (Panel board switch)||yes|
|Busbar system pin (top/bottom)||–|
|Busbar system fork (top/bottom)||–|