MCCB for line protection with high interrupting capacity
The Siemens SENTRON 3VA2116-5HL32-0AC0 is a 3-pole molded case circuit breaker (MCCB) rated for 160 A continuous current, designed for line protection in distribution panels. Its interrupting capacity hits 187 kA at 240 V and 121 kA at 415 V — enough to handle high-fault scenarios without cascading upstream. The 800 V rated insulation voltage gives headroom for 480 V or 600 V class systems. Dimensions are 181 mm high, 105 mm wide, 86 mm deep — fits standard MCCB panel cutouts. Comes with 2 auxiliary switches HQ for status feedback to a PLC or indicator lamp.
Current rating holds across temperature range
Unlike many MCCBs that derate above 40 °C, this unit holds its 160 A rating all the way to 70 °C ambient (–). That means no oversizing needed for a hot panel — useful in a crowded enclosure or near a heat source. Power loss at full load is 25.5 W, manageable for thermal budgeting.
