RKL4555 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4555 is part of the RKL Motor Power Cables series and features 4 power conductors with a 2.5 mm² cross-section. This cable is rated for 5,000,000 bending cycles, has an overall shield, and is designed for drag chain use. It has a PUR jacket in RAL 2003 orange and includes two control pairs each measuring 2 x 1.0 mm².
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Product Description:
The RKL4555 motor power cable is produced by Bosch Rexroth Indramat and belongs to the RKL Motor Power Cables series. Designed for servo drive installations, the cable supplies phase power and auxiliary signals to moving motors in industrial automation systems, acting as a compact link between control cabinets and axes. Its construction supports continuous motion inside energy chains, reducing wiring complexity while maintaining electrical reliability during high-duty production cycles.
Mechanically the RKL4555 is rated for 5,000,000 bending cycles, a figure that allows prolonged operation in dynamic drag-chain assemblies. The PUR outer jacket is adhesion-free and matte, so contaminants do not stick and technicians can route the cable without glare. When fixed the minimum bend radius is 5 x D, and during reciprocating motion the radius must remain above 7.5 x D to avoid conductor strain. Four tinned copper cores, identified as 4 power conductors, deliver motor current, each sized at 2.5 mm² to match the output capacity of medium-frame drives. An overall aluminum-laminate shield surrounds the core set to attenuate radiated noise, and the design is explicitly approved for drag chain use.
Electrical parameters complement the mechanical profile. The loop resistance measured at 20 °C is 7.98 Ohm/km, establishing expected voltage drop across long machine axes. Mutual capacitance to ground is limited to 0.7 nF/m, keeping drive-generated switching edges clean for encoders and sensors. Two screened control pairs sized 2 × (2 × 1.0 mm²) run alongside the power cores, offering dedicated conductors for holding-brake or temperature signals without adding a separate cable. The jacket is colored RAL 2003 orange for immediate identification as motor power, assisting maintenance staff in dense harnesses and ensuring compliance with Rexroth wiring color schemes.
Frequently Asked Questions about RKL4555:
Q: What is the bend cycle rating of the RKL4555 motor power cable?
A: The RKL4555 cable supports up to 5,000,000 bending cycles for extended durability in dynamic applications.
Q: What is the minimum bend radius for fixed installations of the RKL4555 cable?
A: The minimum bending radius for fixed installation is 5 times the cable diameter.
Q: Is the RKL4555 cable suitable for drag chain applications or continuous flexing?
A: This cable is designed for use in drag chains, allowing for flexible, repetitive motion installations.
Q: Does the RKL4555 cable have shielding against electromagnetic interference?
A: The RKL4555 has an overall shield to help protect against electrical interference.
Q: What is the jacket color of the Bosch Rexroth Indramat RKL4555 cable?
A: Its jacket color is RAL 2003, which is orange for clear identification in installations.
