Panel footprint and mounting — dual DIN rail or screw
The 3RA2150-4EA35-0NB3 measures 55 mm wide by 274 mm tall by 150 mm deep, with a clearance envelope that requires 50 mm above, 32 mm in front, 10 mm at the sides, and 10 mm below — no clearance needed behind the unit.
Motor protection and trip response — Class 10
The supplied contactor is a 3RT2035-1NB30 and the link module is 3RA2931-1AA00 — these are the matched subcomponents that carry the thermal and switching ratings; replacing them with non-Siemens parts voids the coordination.
Voltage-dependent current ratings — sizing across common line voltages
At 480 V the continuous current rating is 32 A; at 600 V it is also 32 A — the rating is current-limited at these voltages, so the same motor FLA applies across 480 V and 600 V systems. Power ratings vary by line voltage: 5 hp at 230 V, 10 hp at 200/208 V and 220/230 V, 20 hp at 460/480 V — the 400 V rating is listed at 18 500 kW, which is likely a data-entry anomaly (the unit should be W or hp); the 32 A ceiling governs the actual motor load selection.