The Siemens SENTRON 3VA2116-0KQ32-0AA0 is a 3-pole molded case circuit breaker rated for 160 A continuous current, with a full-scale trip setting of 160 A and an initial pickup of 32 A. That SCCR headroom matters when the transformer feeding the panel is large or when you're retrofitting into an existing high-fault installation.
Thermal derating — it holds flat to 70 °C
No derating curve to calculate for a hot panel — that's unusual for an MCCB in this frame size. If your enclosure sits near a furnace line or a roof under summer sun, this breaker won't force a downsized main. Power loss peaks at 19.7 W, which is manageable for natural convection in a standard IP40 enclosure.
The 105 mm width is a 3-pole frame; it fits standard SENTRON 3VA mounting accessories and busbar systems.
Communication and monitoring capability
This MCCB includes a communication function and an 'other measurement function' — the ETU860 supports optional communication modules for power metering and remote trip indication. If you need to feed a PLC or BMS with breaker status and load current, this frame is wired for it.