Above 55 °C it steps down linearly to 18 A at 70 °C, which is the operating maximum. The headline number here is the interrupting capacity: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V. The undervoltage release (UVR) is integrated, so if control voltage drops, the breaker trips — a standard requirement for safety circuits that need to drop power on loss of pilot voltage.
The 3VA1120-5EF36-0CA0 measures 76.2 mm wide, 130 mm high, and 70 mm deep — a 3-pole MCCB footprint that fits standard Siemens SENTRON panelboards and distribution blocks. No communication module, no phase-failure detection — this is a straight line-protection breaker, not a smart device.
The TM240 release's thermal curve is fixed. The 15,000-cycle mechanical endurance is adequate for distribution duty.