Its interrupting capacity hits 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V — these are the fault currents it can safely clear without welding contacts or rupturing the case. The TM240 thermal-magnetic release provides overload protection via a bimetal element and short-circuit protection via a magnetic solenoid. Above 50 °C the curve begins to step down: 19.2 A at 55 °C, 18.8 A at 60 °C, 18.4 A at 65 °C, and 18 A at 70 °C.
Auxiliary contacts and shunt trip — what is on board
The integrated shunt trip (STL) allows remote tripping via a control voltage; the auxiliary release order code for the trip unit is 3VA9688-0BL30.
Physical fit and environmental limits
The 3VA1120-5EF36-0HH0 measures 130 mm high, 76.2 mm wide, and 70 mm deep — a 3-pole frame that fits standard Siemens SENTRON panel mounting. The latching endurance is rated at 15,000 cycles — that is the mechanical life for the switching mechanism under no-load or low-load conditions.