R911200278 (RD51.1-5N-015-L-D1-FW)

RD 500 Drive Controllers

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The Bosch Rexroth R911200278 (RD51.1-5N-015-L-D1-FW) is a drive control unit designed for installation with unobstructed air supply and exhaust, requiring at least 100 mm clearance at the top and bottom. The unit may emit heat during operation and should be positioned away from heat-sensitive devices. It is suitable for operation at installation altitudes up to 1000 m above sea level and supports a rated power of 15 kW with a nominal input voltage of 3 x 500 VAC, ±10%. Forced air cooling is implemented for devices rated at 110 kW and above. The device does not feature an integrated brake chopper and is intended for U/f curve control applications. Associated features include a connection for RZC01.1-XT with NAMUR terminal strip, 24 V standby power, and external feedback of cable damping (C3, D3). Only qualified personnel should handle installation, operation, or repairs, with a mandatory 30-minute wait after power-off for capacitor discharge. Protective equipment is advised during handling, and the device must be protected against falling, crushing, or pinching.