What this 3VA2116-6HL32-0KC0 brings to the panel
The Siemens SENTRON 3VA2116-6HL32-0KC0 is a 3-pole molded case circuit breaker (MCCB) built for line protection, carrying a rated continuous current Iu of 160 A with an ETU320 electronic trip unit. Its interrupting capacity hits 242 kA at 240 V and 187 kA at 415 V, so it handles serious fault currents without letting the arc climb upstream — that's the kind of headroom that keeps a selectivity study simple. The 160 A rating holds steady from 40 °C up to 50 °C, then derates to 154 A at 55 °C and 136 A at 70 °C — a curve you'll want to check if the panel sits near a hot motor or a sunny wall. It comes fitted with a shunt trip (STL) release and two high-quality auxiliary switches, plus the undervoltage release is absent here — so if you need UV protection on the line, that's a separate add.
Physical fit and integration
The breaker measures 105 mm wide, 181 mm tall, and 86 mm deep — that 86 mm depth is the dimension to watch when you're sliding it into a tight enclosure or a panel with a shallow backpan. It's a 3-pole unit rated for 800 V insulation voltage, so it fits standard 3-phase distribution panels up to 690 V line-to-line. The ETU320 release gives you adjustable thermal-magnetic protection, and the shunt trip allows remote tripping — handy for emergency-stop circuits or automated shutdown sequences.