RKL4719 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4719 is a ready-made power cable from the RKL Motor Power Cables series. It features a dynamic bending radius of 7.5xD, supports 5,000,000 bending cycles, and connects using a Clamp Box RLK1301 and Plug Connector RLS0721. The cable is designed for temperatures from -30°C to 80°C.
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Product Description:
The RKL4719 power cable is produced by Bosch Rexroth Indramat as part of the RKL Motor Power Cables series. It is supplied as a terminated assembly that delivers three-phase drive output from cabinet-mounted inverters to servo motors in automated machinery. Specified connectors and conductor cross-sections provide a consistent, low-resistance path for motor current. The cable also accommodates frequent movement inside cable carriers used on gantries, machine tools, and other moving axes.
The cable has a mechanical fatigue rating of 5,000,000 flex cycles, indicating its capacity to withstand repeated movement in continuous-motion carriers. During motion, it must maintain a minimum bend radius of 7.5 × D, where D represents the cable’s outer diameter. This radius helps prevent excessive tensile stress on the copper strands and insulation as the carrier changes direction. Fixed installations permit a minimum bend radius of 5 × D because the cable is not subjected to repetitive flexing. The cable supports temperatures up to 80 °C, allowing operation in elevated cabinet or machine temperatures. It remains flexible at temperatures as low as -30 °C, supporting startup and movement in unheated industrial facilities.
The drive-side termination uses an RLK1301 clamp box, while the motor side uses an RLS0721 plug connector. These installed terminations eliminate the need for on-site crimping and provide connection points suited to the intended drive and motor interfaces. The assembly is supplied as a ready-made harness in the power variant, with conductors allocated to the phase and protective-ground paths rather than feedback signals. The Basic cable model is intended for general servo applications that use the standard braided shield. Its polyurethane jacket and flexible conductor arrangement support routing through moving cable carriers without requiring additional shield layers. The cable may also be stored or transported across its permitted storage temperature range without prior environmental conditioning before installation.
