160 A MCCB with 220 kA interrupting capacity — what the ratings mean for your panel
The Siemens 3VA1116-6EF42-0AA0 is a 4-pole SENTRON molded case circuit breaker rated for 160 A continuous current at ambient temperatures up to 50 °C, with no derating needed in that range. Above 50 °C the rating steps down gradually — 158 A at 55 °C, 155 A at 60 °C, 153 A at 65 °C, and 150 A at 70 °C — so a panel running warm near the top of its thermal curve still holds a solid margin. The TM240 overcurrent release combines a thermal element for overload protection and a magnetic element for short-circuit response, set for line-protection duty. The headline interrupting rating is 220 kA at 240 V, dropping to 154 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V. That 220 kA figure at 240 V tells you this breaker is sized for high-fault-capacity downstream of a large transformer or generator — it will clear a bolted fault without cascading upstream, which is the deciding factor for selectivity coordination in a distribution board. The 800 V rated insulation voltage confirms it can sit on a 690 V line with full dielectric margin. Physically it measures 70 mm deep by 101.6 mm wide by 130 mm tall, with an IP40 rating on the front — protected against tools and wires larger than 1 mm, but not sealed against moisture, so it belongs inside a cabinet, not in a washdown zone. Maximum power loss is 38 W, which factors into the enclosure's thermal budget if you're packing multiple breakers in a row.
How it compares to the 3VA1112-5EE32-0AA0
The closest functional peer in the 3VA family is the 3VA1112-5EE32-0AA0. The core difference is the frame rating: the 3VA1116-6EF42-0AA0 carries a 160 A continuous rating with a TM240 release, while the 3VA1112-5EE32-0AA0 is a lower-current variant. Both are 4-pole SENTRON MCCBs with the same physical footprint — 70 mm deep, 101.6 mm wide, 130 mm tall — so a panel laid out for the 3VA1112 will accept the 3VA1116 without rewiring or re-drilling the mounting pattern. The interrupting ratings at each voltage level are identical between the two frames; the only spec line that changes is the continuous current and the release setting. If your BOM originally called for the 3VA1112 but the load grew, this is a drop-in upgrade that keeps the same SCCR coordination.