Motor Protection MCCB for IEC Panels
The Siemens 3VA2220-5MP32-0AH0 is a 3-pole IEC frame 250 molded case circuit breaker in the 3VA2 series, fitted with an ETU550M electronic trip unit configured for LSI protection — overload (L), short-time (S), and instantaneous (I) — purpose-built for motor branch circuits. The breaker is rated In=200 A with an adjustable overload pickup IR from 80 A to 200 A, and a short-circuit pickup ISD from 1.2 to 15 times In, plus an instantaneous pickup II from 3 to 15 times In.
Integration Notes
The breaker is specified for busbar connection, so it mounts directly onto a busbar system in the panel — no additional lug kit required for the line side. Two auxiliary switch changeover contacts (H) and one trip alarm switch changeover are integrated, providing status feedback for PLC inputs or alarm annunciation without external interposing relays.
