IKG4087 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat IKG4087 is part of the IKG Motor Power Cables series and has a cable outer diameter of 17.0 mm. It features four power conductors with a cross-section of 4.0 mm², is halogen-free, and uses a PUR jacket in orange. The cable supports up to 5 million bending cycles and is suitable for drag chain use.
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Product Description:
The IKG4087 motor power cable is produced by Bosch Rexroth Indramat as part of the IKG Motor Power Cables series. It transmits three-phase power and auxiliary control signals from a drive to a servo or spindle motor in automated machinery. Combining power and control conductors in one cable eliminates the need for separate multicore harnesses. This arrangement also supports compact routing in machines where cable space is limited.
The cable is rated for 5 million flexing cycles, allowing it to operate in dynamically moving drag chains without premature conductor fatigue. Its outer diameter of 17.0 mm must be considered when selecting conduits, cable carriers, and routing clearances. Mutual capacitance is limited to 0.8 nF/m, reducing the reactive current that the inverter must supply at higher switching frequencies. At 20 °C, the copper conductors have a resistance of 4.95 Ω/km, which supports voltage-drop calculations for long cable runs. The cable includes auxiliary conductors in a 2x1.0 mm² + 2x1.5 mm² arrangement for functions such as brake release and temperature monitoring. Four dedicated power cores supply the motor stator windings, while the flexible cable structure supports repeated movement in drag-chain applications.
A fixed-installation temperature limit of 90 °C permits continuous use in heated enclosures without degrading the insulation. The sheath is orange (RAL 2003), making energized motor power lines easier to identify during installation and inspection. The outer jacket is made from PUR, which provides resistance to abrasion and oil while remaining flexible during repeated movement. Its halogen-free composition reduces the release of corrosive and toxic smoke during a fire. Each of the four main conductors has a cross-sectional area of 4.0 mm², providing current-carrying capacity for compatible mid-frame servo and spindle motors. The integrated auxiliary cores can carry brake or temperature-monitoring signals without requiring an additional control cable. The jacket and conductor arrangement allow the cable to fit compact machine routes while withstanding the mechanical demands of repetitive motion.
