What the interrupting ratings mean for your fault-current study
The interrupting capacity scales with system voltage: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V. The 690 V rating (17 kA) is the limiting case; if your system runs at 690 V, verify the SCCR at that point against your transformer nameplate.
Thermal derating — the 160 A frame doesn't hold 160 A everywhere
Above 50 °C the TM220 thermal-magnetic release begins to derate: 153.6 A at 55 °C, 150.4 A at 60 °C, 147.2 A at 65 °C, and 144 A at 70 °C.
Auxiliary and shunt trip — wired for remote tripping, no comms
The auxiliary switches give status feedback (open/closed/tripped) to a PLC or annunciator. If you need remote monitoring beyond dry contacts, this is not the version; the frame accepts the 3VA9688-0BL32 integrated auxiliary trip module, but that adds a trip coil, not a fieldbus gateway.
Panel fit — dimensions and IP40 front
Width 76.2 mm, height 130 mm, depth 70 mm. The 3-pole frame mounts into a standard MCCB cutout or DIN-rail adapter (not included). The front is clean: no trip indicator, no LCD, just the handle and the TM220 rating plug.
