RKL4403 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4403 is part of the RKL Motor Power Cables series and features a 600 V voltage rating with a PUR jacket in RAL 2003 orange. This cable has an outer diameter of 18.5 mm, a conductor configuration of 4x6.0 + 2x1.0 + 2x1.5 mm², and supports a minimum bending radius of 5 times the diameter when fixed and 7.5 times when flexible.
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Product Description:
The RKL4403 is a motor power cable produced by Bosch Rexroth Indramat within the RKL Motor Power Cables series. It is intended to carry drive output to servo or spindle motors in automated machinery while maintaining reliable insulation and mechanical flexibility inside cable chains or static harnesses. By pairing with Rexroth drive systems, the cable helps maintain signal integrity and safe voltage delivery between cabinet-mounted inverters and moving machine axes, reducing installation time compared with individually terminated conductors.
The cable’s outer sheath measures 18.5 mm in diameter, a size that balances current-carrying capacity with routing space in control cabinets and energy chains. Its insulation system is rated for 600 V, allowing standard low-voltage motor feeds without requiring special overvoltage protection. When installed in a fixed run, a minimum bend of 5 x D is permissible; during continuous motion the limit changes to 7.5 x D, preventing conductor fatigue in dynamic applications. The stranded copper layout of 4x6.0 + 2x1.0 + 2x1.5 mm² separates power, brake, and feedback cores for reduced crosstalk. Line resistance is specified at 3.30 Ohm/km, so voltage drop remains low on typical machine-length runs and does not interfere with torque production at the motor terminals.
Additional characteristics support extended service life. The polyurethane jacket is colored RAL 2003 for quick identification and the material itself is PUR, giving high abrasion resistance and coolant tolerance. A discharge capacitance of 0.8 nF/m limits reactive current that could otherwise stress the drive output stage. With a dedicated power core cross section of 6.0 mm², the cable accommodates the continuous currents common to mid-frame synchronous motors. It is suitable for drag chain operation, and because the compound is halogen-free it avoids corrosive gas emission during a fire, supporting safety requirements in enclosed production areas.
Frequently Asked Questions about RKL4403:
Q: What is the minimum bending radius for the RKL4403 cable when it is fixed?
A: The RKL4403 cable can be bent with a minimum bending radius of 5 times its diameter when installed in a fixed position.
Q: What is the cable outer diameter of the RKL4403 power cable?
A: The outer diameter of the RKL4403 cable is 18.5 mm, which is relevant for routing in cable trays or conduits.
Q: Is the RKL4403 cable suitable for use in drag chain applications?
A: Yes, the RKL4403 power cable is suitable for installation in drag chains.
Q: What is the conductor configuration for the RKL4403 power cable?
A: The conductor configuration of this cable is 4x6.0 mm², 2x1.0 mm², and 2x1.5 mm², allowing for versatile wiring needs.
Q: What type and color of jacket does the RKL4403 power cable have?
A: The RKL4403 cable uses a halogen-free PUR jacket with an orange color coded as RAL 2003.
