What the ratings mean for your panel
The Siemens SENTRON 3VA2010-8HL42-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated 100 A continuously at 40 °C ambient — no derating needed at that temperature. The interrupting capacity is 440 kA at 240 V and 330 kA at 415 V, which puts it in the high-fault category for industrial main feeders or large sub-distribution boards. The ETU320 electronic trip unit provides adjustable long-time, short-time, instantaneous, and ground-fault protection curves; the N-conductor protection is configurable to OFF, 50%, or 100% of the phase current, per the evidence. The front face carries IP40 protection — suitable for enclosed panel mounting, not for washdown environments.
Integration dimensions and mounting
The 3VA2010-8HL42-0AA0 measures 140 mm wide, 181 mm high, and 86 mm deep. The 4-pole width (140 mm) is standard for this frame size; verify the DIN-rail or mounting-plate spacing against the existing panel layout. The depth of 86 mm leaves clearance for rear-access wiring and auxiliary modules. The IP40 front rating means the breaker is intended for installation inside a closed panel — no exposed live parts.