RL2-167MBB by Bosch Rexroth Indramat

The RL2-167MBB is a flexible motor power cable from Bosch Rexroth Indramat that belongs to the RL2 Motor Power Cables series. It is intended to route power between a drive controller and a compatible synchronous motor in automated machinery. By combining line and protective-conductor cores within a compact profile, the cable simplifies wiring runs and helps maintain low impedance over the full cable length. This supports stable current delivery during servo motion and frequent machine cycling. Its flexible construction also suits applications where the cable must bend repeatedly in moving carriers.

The mechanical design supports up to 5,000,000 flexing cycles, so the cable can operate in continuously moving cable tracks without premature fatigue. A PUR jacket protects the conductors against abrasion, oils, and coolants while keeping the outer diameter stable during motion. Inside that jacket, the core set uses 4x L + 4x 0.75 mm², separating the main conductors from smaller auxiliary cores to reduce interference between circuits. During dynamic travel, the installation must respect a minimum loop radius of 7.5 x D, which helps prevent excessive strain on the copper strands and outer sheath.

The outer sheath is Orange (RAL 2003), making the cable easy to identify in machine assemblies. The connection is direct, so the molded plug mates to the motor housing without an intermediate terminal box. When the machine is parked, the cable may rest in a static loop as tight as 4 x D without overstressing the insulation. It matches the manufacturer's second motor generation pinout and is built in the Basic design variant for a balance of flexibility and mechanical strength. The material selection is halogen-free, CFC-free, and silicone-free, which supports use in clean room environments and reduces corrosive gas formation during a fire.