The Siemens SENTRON 3VA1116-3EF32-0CC0 is a 3-pole molded case circuit breaker (MCCB) rated for a continuous current Iu of 160 A at 40 °C, holding that rating up to 50 °C before a gentle derating curve begins — 153.6 A at 55 °C, 150.4 A at 60 °C, 147.2 A at 65 °C, and 144 A at 70 °C. That means for most panel environments below 50 °C, you get full 160 A capacity without headroom calculations; above that, the thermal curve is predictable and published. Breaking capacity is specified across four voltage levels: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 10.5 kA at 690 V. The 415 V figure is the one most often checked for European 400 V distribution — 52.5 kA gives solid selectivity headroom against most upstream transformers in a standard industrial panel. The 690 V rating is lower but still covers the majority of motor-circuit fault currents on 690 V systems. The overcurrent release is a TM240 — a thermal-magnetic unit with a 240 A frame, set here for a 160 A continuous rating. This is a fixed-trip breaker for straightforward line protection where you don't need remote monitoring or adjustable curves.
Dimensions are 70 mm depth, 76.2 mm width, and 130 mm height — a compact 3-pole footprint that fits standard SENTRON mounting plates and busbar systems. The 76.2 mm width is exactly 3 module spaces (each 25.4 mm) on a DIN rail or panel-mount grid, so it aligns with the modular spacing used across the SENTRON family. The storage minimum of -40 °C is relevant for cold warehouses or unheated shipping; the operating minimum of -25 °C covers most outdoor cabinet installations in temperate climates.