Line protection MCCB with thermal-magnetic trip
Its TM240 thermal-magnetic release gives a fixed thermal pickup at 160 A continuous (Iu) with an adjustable short-time delay tr max of 1 s, per the datasheet. The interrupting ratings are what drive the panel coordination: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V.
Current derating and thermal curve
Above that, the thermal curve steps down: 153.6 A at 55 °C, 150.4 A at 60 °C, 147.2 A at 65 °C, and 144 A at 70 °C. That 10 % drop from 50 °C to 70 °C is within the expected bimetallic derating for a 160 A frame — the TM240 release is calibrated for the 40 °C reference, so an ambient above that shifts the trip point. If the panel ambient runs at 60 °C, the effective continuous current is 150.4 A, not 160 A.
Physical fit and auxiliary contacts
The 3VA1116-4EF36-0AC0 measures 76.2 mm wide, 130 mm high, and 70 mm deep. That 76.2 mm width is three 25.4 mm pole pitches — standard for a 3-pole MCCB in this frame size. It carries two HQ auxiliary switches (form C, high-quantity switching) as factory-installed contacts, not field-added.