What this 3VA1 breaker carries
The Siemens 3VA1080-2ED42-0BC0 is a 4-pole IEC frame 100 circuit breaker with a breaking capacity class B rating of Icu=16kA at 415V.
The fixed 80A overload and 10x In short-circuit pickup mean no field-adjustable dials; the trip curve is locked, which simplifies BOM consistency but requires confirming the load's inrush profile against a 10x magnetic threshold.
Integration notes
The 24V DC undervoltage release coil draws from a control supply — verify polarity and that the supply can hold the coil closed; dropout voltage is typically below 18V DC. The two HQ auxiliary switches provide status feedback for PLC or indication circuits. The nut keeper kit aids panel mounting on a DIN rail or backplate.