Siemens 3VA5140-6EF31-0AA0 Molded Case Circuit Breaker

This 3VA5 frame breaker is designed for direct installation in Siemens 3VA panelboards and switchboards. It can also be installed in Siemens P1 and P2 panelboards when using the appropriate mounting adapter kit.

The standard lugs on this breaker accept wire gauges from 14 AWG to 2 AWG. Ensure you use properly rated conductors and follow the torque specifications printed on the breaker faceplate during installation.

This unit features a thermal-magnetic trip unit with adjustable long-time (L) and instantaneous (I) settings. This allows electricians to fine-tune the continuous current protection and short-circuit response to match specific load requirements and coordination studies.

Yes, this breaker is rated for DC applications up to 500VDC with an interrupting capacity of 100kA. This makes it suitable for specific industrial DC control panels, battery systems, or solar applications requiring robust fault protection.

Yes. While it mounts directly into 3VA-specific enclosures, installing this 3VA5 frame breaker into legacy or standard Siemens P1 or P2 panelboards requires a specific strap kit or mounting adapter designed for 3VA breakers.

The 65kA rating indicates the maximum fault current the breaker can safely interrupt at 480VAC without sustaining catastrophic damage. This high interrupting capacity ensures safety in commercial and industrial environments with high available fault currents.

This breaker is part of the Siemens SENTRON 3VA5 molded case circuit breaker family, specifically utilizing the 125A frame size, which is designated by the 3VA51 prefix.

No, this specific model features an LI (Long-Time, Instantaneous) thermal-magnetic trip unit. It provides overload and short-circuit protection but does not include integrated ground fault protection.