The RND Three Phase Mains Chokes from Bosch Rexroth are line-side reactors used with RD500 SFT power inverter systems to support stable inverter operation.
The RND01.1 version is specified for the RD43.1-4R-185 power inverter, where it smooths mains current during sinusoidal motoring and regenerative operation and also serves as the choke for the boost converter. It is rated for 3-phase 380 to 480 VAC (±10%) at 50/60 Hz with a rated current of 300 A. Its industrial design characteristics include IP00 protection, environmental class 3K3, 2.5 kW power loss, and a weight of 125 kg. The unit also requires forced ventilation with a cooling-air flow of 1000 m³/h and uses heavy-duty power connections sized for large conductor cross sections.
