Line protection MCCB with thermal-magnetic release
Its TM240 thermal-magnetic overcurrent release handles both overload and short-circuit trip curves without external power. Breaking capacity is specified at multiple voltage levels: 220 kA at 240 V, 154 kA at 415 V, 121 kA at 440 V, and 17 kA at 690 V — the 240 V and 415 V figures cover the common low-voltage distribution fault-current ranges in North American and IEC panels respectively.
Above that, derating is linear: 30.72 A at 55 °C, 30.08 A at 60 °C, 29.44 A at 65 °C, and 28.8 A at 70 °C.
Auxiliary and shunt trip configuration
Dimensions are 76.2 mm wide (3-pole base), 130 mm tall, and 70 mm deep. Front protection is IP40. The breaker mounts via screw terminals and fits standard Siemens SENTRON 3VA panel footprints. No trip indicator is fitted on this variant.