The Siemens SENTRON 3VA2116-5HN32-0BA0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current of 160 A across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. Interrupting capacity hits 187 kA at 240 V AC, dropping to 121 kA at 415/440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. That 187 kA figure at 240 V tells you it's built for high-fault service-entrance or distribution panels where available short-circuit current is substantial.
Dimensions and panel fit
The breaker measures 105 mm wide, 181 mm tall, and 86 mm deep. That 105 mm width for a 3-pole 160 A frame is standard for SENTRON 3VA2 — it slots into existing panel layouts without re-drilling the mounting plate. Depth of 86 mm leaves room for rear bus connections and cable bends in a typical 600 mm deep enclosure.
Undervoltage release and auxiliary options
This variant includes an undervoltage release (UVR) as the auxiliary release — it trips the breaker when supply voltage drops below a set threshold, protecting downstream loads from brownout conditions. The UVR is factory-fitted; there is no voltage trigger or communication function on this order code. The base switch module is 3VA21165HN320AA0. Rated insulation voltage is 800 V. Power loss at rated current is 28 W maximum.