RKL4551 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4551 is part of the RKL Motor Power Cables series and features a jacket made of matte PUR material. This cable is designed for 5 million bending cycles and operates at a voltage of 300/500 V with an ambient temperature range of -20 to +40 °C. It includes ferrules and ring terminal on one end and a RLS0722 plug connector on the other.
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Product Description:
The RKL4551 motor power cable is produced by Bosch Rexroth Indramat for the RKL Motor Power Cables series. It links servo drives to synchronous motors within assembly robots, gantries, and packaging lines, carrying both mains power and paired control conductors through a single jacket. Because the cable is rated for continuous movement, it is specified for energy-chain layouts where high cycle counts and small bend radii are required.
Inside the PUR sheath the RKL4551 contains four power cores sized at 4x2.5 mm², allowing stable current delivery while limiting conductor losses. Two additional signal pairs, arranged as 2x(2x1.0 mm²) screened twisted cores, provide brake or temperature feedback without a separate cable. The assembly is manufactured from bulk cable type INK0602 and is terminated on the motor side with an RLS0722 plug connector, while the drive end is fitted with ferrules and a ring terminal block for secure cabinet wiring. Rated insulation withstands a line potential of 300/500 V, so the cable accommodates common low-voltage three-phase supplies. For moving chain applications the minimum active bend during motion is 7.5xD, and with an overall diameter of 14.8 mm this equates to a 111 mm loop, preventing conductor fatigue.
In flexible operation the cable remains functional from -20 to +40 °C, supporting cold-start conveyors as well as warm production cells. Mechanical endurance is verified for 5 million double strokes, matching multi-shift facilities that cycle equipment around the clock. During fixed routing the allowed bend can be tightened to 5xD, reducing cabinet depth when the cable is clamped. The outer sheath is a PUR compound with a matte, adhesion-free surface that resists oil, weld spatter, and chain abrasion, maintaining insulation integrity over the product’s service life.
Frequently Asked Questions about RKL4551:
Q: How many bending cycles can the RKL4551 motor power cable withstand?
A: The RKL4551 supports up to 5 million bending cycles, making it highly durable in applications requiring frequent movement.
Q: What connectors are provided on each end of the RKL4551 cable?
A: The RKL4551 features ferrules and ring terminal on one end and an RLS0722 plug connector on the other.
Q: What type of outer jacket material does the RKL4551 cable use?
A: This cable has a PUR jacket that is adhesion-free and matte, offering chemical resistance and flexibility.
Q: What is the flexible ambient temperature range of the RKL4551 cable?
A: The ambient temperature range for flexible operation of the RKL4551 is -20 to +40 °C.
Q: What is the rated operating voltage for the RKL4551 motor power cable?
A: The RKL4551 operates at a power voltage rating of 300/500 V.
