What this 3VA1110-5EF32-0DA0 brings to a panel
The Siemens 3VA1110-5EF32-0DA0 is a 3-pole SENTRON molded case circuit breaker (MCCB) rated for 100 A continuous current at 40 °C — the same rating holds through 50 °C, then derates to 90 A at 70 °C.
Sizing and thermal derating for cold-chain or warm environments
At 55 °C it drops to 96 A, at 60 °C to 94 A, at 65 °C to 92 A, and at 70 °C to 90 A. For a cold-storage freezer panel operating near -25 °C (the minimum operating temperature), the breaker runs cold and stays cold — no thermal trip nuisance from ambient cold.
The 70 mm depth leaves clearance for rear busbar connections in a typical 200 mm deep enclosure.
