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
Standards EN/IEC 60947-2
Short circuit breaking capacity ( 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
Selectivity class
Mechanical/electrical endurance 10000/4000
Tropicalisation EN/IEC 60068-2 95%RH at 55°C
Terminal capacity flexible/rigid cable (mm 2 ) 70
Poles 1
Weight (g/pole) 210
CE-marking X
Auxiliary contacts yes
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)