The Bosch Rexroth catalog number R911299879 refers to a DC bus resistor unit designed for reliable performance in industrial control systems. This resistor features a single-line configuration with a compact 400 mm mounting depth, making it suitable for various installation spaces. Rated for DC voltages up to 700 volts and protected to an IP20 standard, it offers dependable operation in environments with moderate exposure to dust and contact. Distributed by BSP Automation, this unit is a solid choice when precise DC bus braking or load management is required in your automation setup.