MCCB for high-fault substations and feeder protection
The Siemens SENTRON 3VA2110-6HN36-0DA0 is a 3-pole molded case circuit breaker rated for 100 A continuous current across the entire 40 °C to 70 °C ambient range — no derating needed up to that ceiling. The 800 V rated insulation voltage suits it for 690 V line-to-line systems, though at 690 V the breaking capacity drops to 3.7 kA — that's the limit to watch if you're using it on a 690 V bus. No trip indicator on the front means fault diagnosis relies on the external UVR status or downstream annunciation.
Panel fit and mechanical integration
The 86 mm depth leaves clearance for rear-connected busbars or cable ladders in a typical 600 mm deep enclosure. No communication module means no extra wiring beyond the power terminals and the UVR coil connections.