What this MCCB carries and what it means for your panel
The Siemens 3VA2116-4JQ42-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for 160 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling, per the datasheet. Four-pole construction with line protection design and integral ground-fault monitoring via summation current formation on L+N conductors. The interrupting ratings climb to 121 kA at 240 V, 75.6 kA at 415 V and 440 V, 52.5 kA at 500 V, and 3.7 kA at 690 V — the 690 V figure is low, so verify available fault current at that voltage before specifying. Rated insulation voltage is 800 V. The unit includes a communication function for integration into a monitored distribution system. No undervoltage release or trip indicator fitted on this variant.
Physical fit and panel integration
Dimensions: 181 mm height, 140 mm width, 86 mm depth. Fits standard SENTRON 3VA mounting footprint for 160 A frame. Verify panel cut-out and busbar spacing against the 140 mm width before ordering.