RS51.1-4G-050-D-NN-FW/S150

The Bosch Rexroth Indramat RS51.1-4G-050-D-NN-FW/S150 from the RD 500 Drive Controllers series delivers robust motion control with a nominal connecting voltage of 3×380–480 V AC and a rated power of 50 kVA. This drive control device for high-speed grinding spindles integrates both an integrated brake chopper and an integrated brake resistor to manage regenerative energy effectively. Supporting an input frequency of 50–60 Hz, the unit provides a wide output frequency range of 0–1000 Hz to accommodate synchronous and induction motors. With a nominal current of 66 A and a continuous 41 kVA output, it ensures stable performance under demanding workloads.

Engineered for reliability, the RS51.1-4G-050-D-NN-FW/S150 features an IP20 protection class enclosure and must be installed in a control cabinet with a minimum clearance of 100 mm at the top and bottom. The built-in connection cooler maintains optimal internal temperatures, even during extended high-speed operation. The unit’s operator terminal, mounted at the front, combines a digital display and programming keys for real-time status monitoring and parameter adjustments. With no additional functions fitted, it delivers a straightforward, maintenance-friendly configuration.

Ideal for precision grinding applications, this drive controller offers energy-efficient, economical motion control across diverse industrial sectors. Its compact, rugged design and straightforward commissioning reduce downtime, while the one-year replacement warranty from Bosch Rexroth Indramat guarantees long-term dependability. Whether integrated into new installations or retrofitted into existing systems, the RS51.1-4G-050-D-NN-FW/S150 excels at high-speed spindle control, combining safety, efficiency, and ease of use.