Siemens SENTRON 3VA1196-6EF32-0AF0 — 16 A MCCB with TM240 Release
Its interrupting capacity hits 220 kA at 240 V, 154 kA at 415 V, and 121 kA at 440 V — numbers that tell you it's built for high-fault panels where a standard MCCB would weld its contacts shut. The TM240 overcurrent release is fixed, not adjustable for long-time pickup, so the 16 A rating is a hard ceiling — no dialing it up for a temporary overload.
Thermal Derating and Ambient Reality
The 16 A rating holds flat from 40 °C through 50 °C, then starts a gentle slide: 15.36 A at 55 °C, 15.04 A at 60 °C, 14.72 A at 65 °C, and 14.4 A at 70 °C. Plan your load accordingly.
The breaker measures 76.2 mm wide, 130 mm tall, and 70 mm deep — a standard 3-pole MCCB footprint that drops into a SENTRON panelboard or a DIN-rail adapter without surprises.