RKL4522 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4522 is a power cable in the RKL Motor Power Cables series, featuring a PUR jacket in orange and a nominal diameter of 17 mm. It has a power wire cross-section of 4.0 mm² and supports operating voltages of 300/500 V for power and 300/300 V for control. The cable offers a capacitance of 0.8 nF per meter and a conductor resistance of 4.95 Ω per kilometer.
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Product Description:
Bosch Rexroth Indramat manufactures the RKL4522, a cable in the RKL Motor Power Cables series. It serves as the dedicated motor lead for synchronous and asynchronous drives, supplying three-phase power and feedback-related control signals in one assembly for streamlined machine wiring. By integrating predefined conductor sizes and industrial insulation systems, the cable simplifies cabinet routing, supports predictable electrical behavior, and maintains electromagnetic compatibility between the drive and field motor.
The power cores each have a cross-section of 4.0 mm², permitting continuous phase currents suitable for medium-frame servomotors, and they are rated for 300/500 V insulation coordination. Internal capacitance is limited to 0.8 nF/m, reducing reactive current at high carrier frequencies, while a low loop resistance of 4.95 Ω/km minimizes voltage drop over long cable runs. The circular profile is held to 17.0 mm outside diameter, which keeps tray fill requirements moderate. A PUR outer jacket resists oil and abrasion, and its Orange (RAL 2003) color provides uniform machine identification. Two control pairs are included; cores 5-6 use 1.0 mm² conductors for brake power, and cores 7-8 use 1.5 mm² conductors for temperature or encoder supply. The auxiliary pairs share a 300/300 V rating.
Mechanical service conditions focus on motion axes. Fixed routing requires a minimum static bend radius of 85 mm, whereas dynamic cable chains need 127.5 mm to prevent conductor fatigue. Thermal endurance differentiates installation states; wiring embedded in machinery can withstand continuous conductor temperatures up to +90 °C, while moving cable sections are limited to +80 °C because flexing accelerates insulation ageing. These combined bend and temperature limits allow the cable to follow standard robotic and gantry movements without premature failure, completing the electrical characteristics detailed previously.
Frequently Asked Questions about RKL4522:
Q: What material is used for the outer jacket of the RKL4522 power cable?
A: The RKL4522 features a PUR jacket for enhanced durability and resistance to environmental factors.
Q: What is the operating voltage for the control wires of the RKL4522 cable?
A: This cable provides a control wire voltage rating of 300/300 V for reliable signal transmission.
Q: What is the minimum bend radius for the RKL4522 cable in fixed installations?
A: The minimum bend radius for the RKL4522 when installed as a fixed cable is 85 mm.
Q: What is the nominal diameter of the RKL4522 motor power cable?
A: This model has a nominal diameter of 17.0 mm, accommodating its multiple conductors and insulation.
Q: What color is the jacket of the RKL4522 cable according to its specification?
A: The RKL4522 cable comes with an orange jacket that matches RAL 2003 color specifications.
