MCCB for motor protection — 200 A frame with ETU350M
The Siemens SENTRON 3VA2220-5MN32-0AJ0 is a 3-pole molded case circuit breaker rated for 200 A continuous current at 40 °C, with an ETU350M electronic trip unit configured for motor protection duty. The 200 A rating holds flat across 40–50 °C, then derates to 192 A at 55 °C, 188 A at 60 °C, 184 A at 65 °C, and 180 A at 70 °C (–) — useful for panels running near the thermal ceiling. Breaking capacity reaches 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 17 kA at 690 V.
Front IP40 protection suits standard panel environments. The base switch variant is 3VA2220-5MN32-0AA0.
Maximum power loss is 75 W.
