MCCB with ETU350M — 100 A continuous, 187 kA interrupting at 240 V
The Siemens SENTRON 3VA2110-5MN36-0AB0 is a 3-pole molded case circuit breaker (MCCB) in the motor protection version, rated for 100 A continuous current at 40 °C and carrying a 187 kA interrupting capacity at 240 V. The ETU350M electronic trip unit provides phase failure detection and adjustable protection curves suited for motor branch circuits.
Interrupting capacity across voltage — selectivity headroom
At 415 V and 440 V the breaker holds 121 kA, dropping to 75.6 kA at 500 V and 17 kA at 690 V.
Thermal derating — continuous current vs ambient
At 55 °C it derates to 96 A, then 94 A at 60 °C, 92 A at 65 °C, and 90 A at 70 °C.
Panel fit — dimensions and auxiliary contacts
The breaker measures 105 mm wide, 181 mm high, and 86 mm deep — a standard SENTRON 3VA frame size that fits existing 3VA panel cutouts and DIN-rail mounting. It ships with 2 auxiliary switches (HP type) built in, so no separate aux block is needed for status feedback.