What it is and what it does
The SENTRON 3VA1116-5FE46-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated at 80 A continuous, with a TM220 thermal-magnetic trip unit — that means the thermal element handles overloads and the magnetic element handles short circuits, no electronic adjustments. It's designed for line protection in distribution panels. At 240 V it interrupts 187 kA; at 415 V that drops to 121 kA, at 440 V to 75.6 kA, and at 500 V or 690 V it holds at 17 kA. That's a high-interrupting-capacity (HIC) frame — useful where fault current is high, like near a large transformer or in an industrial main switchboard. Thermal derating is mild: it carries the full 160 A frame rating up to 50 °C, then drops to 158 A at 55 °C, 155 A at 60 °C, 153 A at 65 °C, and 150 A at 70 °C. The 80 A trip unit is the bottleneck, not the frame, so in a warm panel you still have headroom.
Integration and mounting
Dimensions are 130 mm high, 101.6 mm wide, 70 mm deep — a standard 4-pole MCCB footprint that drops into a SENTRON distribution panel or a separate enclosure. Front face is IP40 rated; the rest of the breaker is not sealed, so mount it inside a cabinet, not in a washdown zone. No undervoltage release, no communication function, no ground-fault monitoring — this is a straight line-protection breaker. If you need remote trip or GFCI, you're looking at a different variant in the 3VA family.