What this MCCB delivers — and where the ratings matter
The Siemens SENTRON 3VA1116-3EF46-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for line protection, carrying a TM240 thermal-magnetic release. It handles 160 A continuously up to 50 °C, then derates to 150 A at 70 °C — so in a warm panel you lose about 6 % of the headline current, which matters when sizing for a full-load motor feeder. Breaking capacity climbs with system voltage: 75.6 kA at 240 V AC, 52.5 kA at 415 V, 32 kA at 440 V, and holds 11.9 kA all the way to 690 V. That 11.9 kA at 690 V is the number to check if you are feeding a 690 V drive line — many MCCBs collapse harder above 500 V. Rated insulation voltage is 800 V, and the maximum operating voltage hits 690 V AC / 600 V DC. The front face carries IP40 — fine for a clean panel, but not washdown. No undervoltage release, no ground-fault monitoring, no communication module on this variant; it is a straight thermal-magnetic breaker for a distribution or motor branch circuit.
Panel integration notes
Dimensions: 130 mm high, 101.6 mm wide, 70 mm deep. Snaps onto standard DIN rail. The IP40 front means it is suited for enclosed panel mounting — no additional gasketing required for a typical IP54 cabinet interior. Maximum power loss is 38 W — account for that in the enclosure thermal budget if you are packing several breakers in a small cabinet.