The 3RA6400-1BB43: The 53 kA breaking capacity at 400 V means this starter can safely interrupt fault currents up to that level without cascading upstream — a critical coordination value for the panel SCCR. The adjustable trip class (CLASS 10 and 20) lets you match the overload protection to the motor start profile: Class 10 for faster-starting loads like pumps, Class 20 for higher-inertia loads like fans or conveyors. The 24 V DC coil draws a maximum of 2.9 W in steady state. The main circuit connects via plug-in terminals, accepting solid conductors from 0.5 to 4 mm². IO-Link runs at COM2 (38.4 kBaud). Three onboard LEDs provide local status indication. The housing is 45 mm wide, 170 mm high, and 165 mm deep — a compact footprint for crowded control panels.
Rated for operating temperatures from -20 to +60 °C, storage and transport from -55 to +80 °C. Pollution degree 3 (conductive pollution, typical for industrial control panels). Vibration resistance: 4 to 5.8 Hz at 15 mm amplitude, then 5.8 to 500 Hz at 20 m/s² for 10 cycles. Shock resistance: 60 m/s² (6g) with 10 ms pulses, 3 shocks per axis.