RKL4415 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4415 is part of the RKL Motor Power Cables series and features a cable composition of 4x16 mm² plus 2x(2x1.5 mm²), with a PUR jacket and an outer diameter of 25.5 mm. This cable has an operating voltage of 600 V AC, conductor resistance of 1.21 Ohm/km at 20 degrees Celsius, and a discharge capacity of 1.2 nF/m.
Internal Product Review
The RKL4415 is a robust motor power cable from Bosch Rexroth Indramat, featuring a 4x16 mm² plus 2x(2x1.5 mm²) composition and a PUR jacket for excellent mechanical durability. Its conductor resistance of 1.21 Ohm/km and 600 V AC operating voltage make it reliable for demanding power transmission applications. This cable stands out with its flexibility and long service life in industrial environments.
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Product Description:
The RKL4415 is a motor power cable produced by Bosch Rexroth Indramat within the RKL Motor Power Cables series. The cable links IndraDrive servo drives to synchronous motors, transmitting three-phase power and auxiliary voltages in automated machinery. Its conductor layout and insulation are dimensioned for medium-voltage industrial environments, allowing reliable energy delivery to axis groups, gantries, and processing stations while withstanding repetitive motion inside drag-chain assemblies.
The cable core uses a 4x16 mm² + 2x(2x1.5 mm²) arrangement, so four 16 mm² conductors carry motor phases and protective earth, while two twisted pairs of 1.5 mm² wires supply brake and sensor circuits. With an outer diameter of 25.5 mm, the assembly fits standard cable glands used on modular machine frames. Copper conductor resistance is 1.21 Ohm/km at 20 °C; this low value limits voltage drop over long motor leads and keeps thermal rise modest during continuous current flow. The insulation system is rated for 600 V AC, matching the output of typical regenerative servo inverters, and the robust PUR jacket resists coolants, oils, and abrasion in moving-cable guides.
Electromagnetic and mechanical behaviour are further defined by a line-to-shield capacitance of 1.2 nF/m, a specification important for drive filters that limit leakage currents. Visual identification on busy cable trays is aided by the jacket tone RAL 2003, and flex performance is set by a minimum bend radius of 5 x D for fixed routing and 7.5 x D when the cable moves in energy chains. The conductor insulation can operate up to 90 °C in stationary installations and 80 °C under dynamic movement, so thermal derating is avoided in cabinets and gantries with moderate ambient levels.
