What the ratings mean for fit
The Siemens 3VA2116-6HN32-0KL0 is a SENTRON molded case circuit breaker rated for 160 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed as the panel warms up. Its 242 kA interrupting capacity at 240 V and 187 kA at 415 V mean it can clear high-fault currents on large transformers or busway feeds without cascading upstream. At 690 V the interrupting drops to 3.7 kA, so verify the available fault current if this lands on a 690 V system. The 3-pole design and line-protection profile suit it for main incoming or feeder duty in a distribution panel. Power loss is 25.5 W maximum, which matters for enclosure thermal calculations — a sealed stainless cabinet with this breaker at full load needs ventilation or a larger volume to stay below the 70 °C operating limit.
Integration and accessories
Dimensions are 86 mm deep, 105 mm wide, 181 mm high — fits standard MCCB panel cutouts and DIN-rail adapters. The basic switch supplied is 3VA21166HN320AA0. Auxiliary switch configuration includes 2 auxiliary switches, 1 trip alarm switch, and 1 electrical alarm switch HQ. A shunt trip (STL) release is built in for remote tripping. No undervoltage release or ground-fault monitoring on this variant.