The Siemens SENTRON 3VA2110-5HN36-0DH0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current across the full ambient temperature range from 40 °C to 70 °C — no derating needed as the temperature climbs. It's designed for line protection, meaning it sits at the incoming feeder or main distribution point in a panel, not on a specific motor or load circuit.
Breaking capacity and what it means for your fault level
This MCCB carries a 187 kA interrupting rating at 240 V, dropping to 121 kA at 415 V and 440 V, then 75.6 kA at 500 V, and 3.7 kA at 690 V. The 187 kA figure at 240 V is high for a 100 A frame — it's sized for high-fault industrial panels where the available short-circuit current is substantial. The steep drop at 690 V (3.7 kA) means this breaker is not intended for 690 V main feeders; it's a 480 V / 600 V class device.
Built-in undervoltage release and auxiliary switching
Factory-fitted with an undervoltage release (UVR) that trips the breaker when supply voltage drops below a threshold — common for safety disconnects or emergency-stop chains. It also carries two auxiliary switches plus one trip alarm switch (HQ), so you get status feedback to a PLC or indication lamp without adding external relays. The UVR and auxiliary switch complement is built into the basic switch assembly (3VA21105HN360AA0), not field-added.
Physical fit: panel dimensions and integration
The breaker measures 181 mm high × 105 mm wide × 86 mm deep. That 105 mm width (about 4.13 in) is standard for a 3-pole MCCB in this frame size — it occupies three 35 mm DIN module widths plus a bit. The 86 mm depth (3.39 in) is shallow enough for most 200 mm deep enclosures, but check gland-plate clearance if the panel has rear-mounted busbars. Operating temperature range is -25 °C to 70 °C; storage from -40 °C to 80 °C.