RKL4644 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4644 is a motor power cable from the RKL Motor Power Cables series. It features 4 auxiliary conductors with a cross-section of 1.5 mm² and 4 power conductors with a 25.0 mm² cross-section. The cable has a PUR jacket, an outer diameter of 29.8 mm, and supports up to 5,000,000 bending cycles for drag chain use.
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Product Description:
The RKL4644 is a cable manufactured by Bosch Rexroth Indramat within the RKL Motor Power Cables series. Intended for drive technology, the cable links servo amplifiers to moving motors and supplies both main phase current and auxiliary signals in industrial automation cells. Its design suits dynamic axes that move inside drag-chain systems where repeated flexing and secure power delivery are required.
In the power circuit the cable carries 4 primary conductors, each with a cross-section of 25.0 mm², so voltage drop is kept low during high current peaks. These copper cores sit inside a geometry that brings the overall sheath to 29.8 mm, a dimension used when selecting cable glands and energy-chain channels. A sheath of PUR that is adhesion-free and matte resists oil splash and welding spatter while allowing easy extraction from plastic carriers. For stationary installations the minimum installation arc is 5 × D, meaning the cable can be laid in tight cabinets without exceeding conductor strain limits. The internal layout mirrors the listed structure of 4×25.0 mm² plus two paired auxiliary elements for signal or brake power distribution.
Four auxiliary conductors arranged as two twisted pairs each use 1.5 mm² copper, forming low-load circuits for brakes, sensors or fans without extra cabling. During machine motion the chain-rated bend radius widens to 7.5 × D, a value coordinated with carriers that run back-and-forth cycles. Endurance is specified at 5,000,000 flex cycles, so the cable can follow linear axes for years before jacket fatigue appears. Operation in fixed routing remains functional from -30 to +40 °C, while the flexible installation limit is –20 to 40 °C, aligning with typical factory environments.
Frequently Asked Questions about RKL4644:
Q: What type of jacket material is used in the RKL4644 motor power cable?
A: The RKL4644 motor power cable is constructed with jacket material made of adhesion-free, matte PUR.
Q: How many bending cycles can the RKL4644 cable withstand in drag chain use?
A: This cable supports up to 5,000,000 bending cycles, making it suitable for highly dynamic drag chain applications.
Q: What is the minimum bend radius for the RKL4644 cable under fixed installation conditions?
A: For fixed installation, the bend radius is specified as 5 times the cable diameter.
Q: What is the cross-sectional area of the power wires in the RKL4644 cable?
A: The RKL4644 cable features power wires with a cross-section of 25.0 mm² each.
Q: What is the operating temperature range for fixed installations of the RKL4644 cable?
A: This cable has a temperature range of -30 to +40 °C for fixed installations.
