The Siemens SENTRON 3VA1116-4EF36-0AA0 is a 3-pole molded case circuit breaker (MCCB) designed for line protection, carrying a continuous current rating of 160 A at 40 °C and derating to 150 A at 70 °C. At 415 V the rating drops to 75.6 kA, and at 690 V it still holds 11.9 kA, so it stays usable on 400 V class distribution panels where available fault current is moderate.
The case dimensions are 130 mm high, 76.2 mm wide, and 70 mm deep — a standard 3-pole MCCB footprint that mounts onto a DIN rail or panel base without requiring extra side clearance for arc chutes. Maximum power dissipation is 38 W, which matters for thermal budgeting in a densely packed enclosure — leave some breathing room around the vents.