Interrupting capacity — what the voltages tell you
This MCCB's interrupting capacity varies sharply with system voltage: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V. For a 480 V panel feed, the 32 kA at 440 V figure is the closest published rating — expect the actual SCCR at 480 V to fall between the 440 V and 500 V curves.
At 55 °C it drops to 24 A, at 65 °C to 23 A, and holds 23 A through 70 °C. Maximum power loss is 11 W at rated load.
Standard 3-pole MCCB footprint — mounts in the usual panel cutout or on a mounting plate. No DIN-rail clip on this frame; expect bolted bus connections. The undervoltage release wiring needs a separate control voltage; verify polarity and coil rating against your 24 VDC or 110 VAC control supply before commissioning.