MCCB with 160 A frame and 187 kA interrupting rating
The Siemens SENTRON 3VA2116-5JQ32-0HL0 is a 3-pole molded case circuit breaker rated for 160 A continuous current with a breaking capacity of 187 kA at 240 V AC. That interrupting rating drops to 121 kA at 415 V and 440 V, 79 kA at 500 V, and 4.25 kA at 690 V — so the voltage class of your distribution panel determines which fault current spec governs the application. The ETU560 electronic trip unit handles the overcurrent protection logic, and the auxiliary contact configuration includes 2 auxiliary switches plus 1 trip alarm and 1 electrical alarm switch.
What the ratings mean for panel fit
This MCCB carries a rated insulation voltage of 800 V, so it's suited for 480 V and 600 V class systems with headroom. The 160 A frame is thermally rated with a current derating curve: it holds 160 A all the way up to 50 °C ambient, then steps down to 154 A at 55 °C, 148 A at 60 °C, 142 A at 65 °C, and 136 A at 70 °C (–). If your panel runs hot near the top of the enclosure, that derating matters — you may need to upsize the frame or improve ventilation. The maximum power loss is 25.5 W, which adds to the enclosure's thermal load. Physical dimensions are 181 mm high, 105 mm wide, and 86 mm deep — fits standard MCCB panel mounting footprints.
Trip unit and auxiliary features
The ETU560 electronic trip unit provides adjustable overload and short-circuit protection curves — it's the mid-range electronic trip in the 3VA platform, giving you more flexibility than a thermal-magnetic but without the full communications suite of the ETU600 series. The breaker includes a shunt trip release (STL) and a voltage trigger, plus a trip indicator. The integrated auxiliary trip accessory is order code 3VA9688-0BL30, and the basic switch version of this breaker is 3VA2116-5JQ32-0AA0 — the -0HL0 suffix adds the communication function and the specific auxiliary contact arrangement. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. Latching endurance is rated at 20,000 operations.