IKG4051 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat IKG4051 is part of the IKG Motor Power Cables series and has an overall diameter of 12.2 mm. It features 4 x 1.5 mm² power conductors, 4 x 0.75 mm² auxiliary conductors, and a PUR jacket in RAL 2003 orange. This cable supports a control and power wire voltage of 600 V AC, and has maximum wire temperatures of 90°C fixed and 80°C flexible.
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Product Description:
The IKG4051 cable is a motor power and control lead produced by Bosch Rexroth Indramat within the IKG Motor Power Cables series. It links a drive controller to a Rexroth synchronous motor, carrying three-phase power along with auxiliary sensor lines so that motion axes receive energy and feedback through one assembly. Factory-molded connectors simplify installation in industrial automation cabinets and on moving machine elements.
Its copper core layout contains 4 × 1.5 mm² power conductors that carry the three phases and protective ground, together with 4 × 0.75 mm² auxiliary wires reserved for brake, temperature, or sensor circuits. An overall diameter of 12.2 mm allows the IKG4051 to fit standard cable glands without filler bushings. Line-to-shield capacitance is 0.8 nF/m, so inverter carrier frequencies above 8 kHz do not create excessive charging current. The direct-current path has a conductor resistance of 13.3 Ω/km at 20 °C, a value used when calculating the permissible cable length and resulting voltage drop. These electrical properties help the drive preserve responsive torque control while limiting additional thermal stress on the motor.
The insulation system supports 600 V AC for the power conductors, and the same rating applies to the internally isolated control cores that carry enable or feedback signals. The motor housing mates with the keyed INS0481/C02 connector, while the cabinet end terminates in the complementary INS0482/C02 connector to maintain polarity. A wear-resistant PUR outer jacket in RAL 2003 orange tolerates permanent routing near oil or coolant. When the cable is clamped, a static installation can accommodate a conductor temperature of 90 °C, provided the bend radius is no tighter than 5 × D. Dynamic cable chains require a bend radius of 7.5 × D and limit the conductor temperature to 80 °C. These limits help prevent conductor damage during repeated flexing cycles.
