What it is and what it does
The Siemens SENTRON 3VA1116-4EE46-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current of 160 A across the ambient range from 40 °C up to 50 °C before the first derate step at 55 °C. That means in a standard 40 °C panel it holds the full 160 A without needing to oversize the frame — useful when you're stacking breakers in a warm enclosure. It's fitted with a TM220 thermal-magnetic release, so the thermal element handles overloads and the magnetic element handles short-circuits — no electronic trip unit to program, which keeps the BOM simple for a line-protection role.
Interrupting capacity — where it fits in the fault chain
The interrupting capacity runs 121 kA at 240 V AC, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V. For a 415 V distribution board that's a solid 75.6 kA — enough to sit downstream of a main breaker without worrying about cascading failure into the bus. At 690 V the 11.9 kA figure is the ceiling; if your system fault current exceeds that at 690 V, this isn't the breaker for that position.
Physical fit and panel integration
The case measures 130 mm high, 101.6 mm wide, and 70 mm deep — a 4-pole MCCB that fits a standard SENTRON mounting footprint. The front face carries IP40 protection, so it's fine inside a closed panel but not for washdown zones. No undervoltage release or communication module on this variant; it's a straight line-protection breaker with no auxiliaries pre-installed.