Product information "Braking resistor for frequency inverter 390 W 150 Ohm green"
For frequency inverters with built-in brake chopper. Resistors are connected to these choppers to dissipate energy from the braking of the motor. This prevents an overvoltage shutdown when the motor feeds current back into the DC link as a generator.
Uses braking resistors if your load has a high moment of inertia and the frequency inverter goes into the fault state (overvoltage) during braking (deceleration)
.390 W are well suited for inverters up to 2.2 kW, but can also be used for larger frequency inverters.
150 Ohm are well suited for single-phase frequency inverters of any power and three-phase frequency inverters from 2.2 kW (depending on manufacturer and model).