Rated current and interrupting capacity
The Siemens 3VA2110-6HN36-0CC0 is a SENTRON molded case circuit breaker (MCCB) with a rated continuous current Iu of 100 A, carried flat from 40 °C to 50 °C before linear derating to 85 A at 70 °C. The interrupting capacity reaches 242 kA at 240 V, 187 kA at 415 V and 440 V, and 121 kA at 500 V — these figures mean the breaker can safely clear a fault of that magnitude without rupturing, which is critical for high-fault installations like transformer secondaries or large motor control centers. The ETU350 electronic trip unit provides adjustable long-time, short-time, instantaneous, and ground-fault protection curves.
Undervoltage release and auxiliary contacts
This MCCB includes an undervoltage release (UVR) as the design of the auxiliary release, part number 3VA9608-0BB24 for the integrated auxiliary trip. The auxiliary contact version is two HQ auxiliary switches. The undervoltage release ensures the breaker trips if supply voltage drops below a set threshold — a common requirement for safety circuits or to prevent motor re-acceleration after a power dip.
Dimensions and panel fit
The breaker measures 181 mm height, 105 mm width, and 86 mm depth — a 3-pole frame common in SENTRON 3VA2. It mounts on a DIN rail or panel base; the 105 mm width means it occupies three 35 mm module spaces. Verify the existing panel cutout or DIN-rail length accommodates these dimensions before ordering.