IKG4081 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat IKG4081 is part of the IKG Motor Power Cables series and features a cable construction of 4x4.0mm² plus additional conductors, with a PUR jacket material and total shielding for durability. This cable has a controller-side connector INS0482/C04, a motor-side connector INS0481/C04, and operates at voltages of 300/300 V for control and 300/500 V for power.
Internal Product Review
The IKG4081 from Bosch Rexroth Indramat is a robust motor power cable featuring a 4x4.0mm² core construction and total shielding for reliable power delivery and signal integrity. Its durable PUR jacket and minimum bend radius ratings ensure flexibility and protection in demanding industrial environments. This cable stands out for its secure connections and consistent performance.
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Product Description:
The IKG4081 is a motor power cable from Bosch Rexroth Indramat’s IKG Motor Power Cables series. It links an IndraDrive or similar controller to a synchronous or asynchronous motor, carrying three-phase power along with control cores for brakes or temperature sensors. By combining power and auxiliary conductors in a single jacket, the cable simplifies field wiring and maintains EMC compliance within industrial automation cells.
The cable core follows a 4x4.0mm²+(2x1.0)StC+(2x1.5)StC layout, meaning four power conductors are paired with two shielded 1.0 mm² signal cores and two shielded 1.5 mm² brake cores. Each power conductor has a cross-section of 4.0 mm², sized for typical servo outputs up to roughly 20 A while limiting voltage drop. For the power pair, the insulation supports up to 300/500 V, matching most low-voltage drive systems. Line-to-ground capacitance is 0.8 nF/m; this low value keeps drive-generated common-mode currents within filter limits. DC resistance of the copper bundle is 4.95 Ohm/km at 20 °C, a figure used to calculate I²R losses and verify thermal loading in continuous-duty axes.
The cable uses a Total Shield foil-plus-braid layer that encloses every conductor group, reducing radiated noise and protecting encoder feedback lines in adjacent bundles. A rugged PUR outer jacket resists oil and coolant while allowing the static bend radius to stay at 5 x D; under dynamic motion, the bend requirement increases to 7.5 x D to avoid conductor fatigue. An INS0482/C04 plug is fitted on the controller end and an INS0481/C04 plug on the motor end, providing keyed, bayonet locking for quick changeover. The 300/300 V auxiliary cores handle control voltage for brake release or thermal sensors, and the overall construction maintains flexibility for cable chains without compromising electrical integrity.
