What this MCCB delivers for the panel
The Siemens 3VA1096-4ED32-0DH0 is a 3-pole SENTRON molded case circuit breaker rated for line protection, carrying 16 A continuously from 40 °C up to 55 °C before derating to 15 A at 60 °C and above. That 121 kA interrupting capacity at 240 V AC means it can clear a massive fault without upstream devices needing to trip — selectivity headroom for a distribution panel feeding motor starters or lighting subfeeds. The integrated undervoltage release (UVR) drops the breaker if control voltage is lost, a common requirement for safety circuits and emergency-stop chains.
Interrupting performance across voltage levels
Interrupting capacity is not a single number; it drops as system voltage rises. At 415 V this MCCB still handles 75.6 kA, at 440 V it's 52.5 kA, and at 500 V or 690 V it holds at 11.9 kA. That 11.9 kA floor at 690 V is still well above typical fault levels in 690 V industrial networks, but the 121 kA at 240 V is what makes it a strong choice for high-fault 240 V panelboards.
Built-in auxiliary switching and release
Factory-fitted with 2 auxiliary switches plus a trip alarm switch (HQ), so you get remote status of the breaker position and a separate signal for trip events. The undervoltage release (UVR) is included — no separate ordering or field installation needed. Rated insulation voltage is 800 V, matching the 690 V interrupting test level.
Physical fit and environmental limits
Width is 76.2 mm (3 in), depth 70 mm (2.76 in), height 130 mm (5.12 in) — a standard 3-pole MCCB footprint for DIN-rail or panel-mount installation. Operating temperature range is -25 °C to 70 °C, storage from -40 °C to 80 °C. Power loss at full load is 13.1 W, which matters for thermal management inside a sealed enclosure.