RL2-521DBB Bosch Rexroth Indramat
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The RL2-521DBB is a motor power cable by Bosch Rexroth Indramat, part of the RL2 Motor Power Cables series. It has a cross section of 1.5 mm², a jacket made from orange PUR, and withstands a conductor temperature up to 90°C. This cable is designed for 2nd generation motors, supports 5,000,000 bending cycles, and has power wire rated voltage of 600/1000 V.
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Product Description:
The RL2-521DBB cable is a motor power lead produced by Bosch Rexroth Indramat within the RL2 Motor Power Cables series. Designed for the Rexroth Cable product group and 2nd-generation motors, the assembly channels three-phase energy from the controller to the machine while carrying protective earth conductors in a single flexible jacket. Its basic construction and orange PUR sheath allow deployment in drag chains and on moving axes typical of packaging, handling, and machining cells.
Mechanical durability is defined by 5,000,000 bending cycles, so reciprocating motion can continue for years without conductor fatigue. The copper cores tolerate a continuous conductor temperature of +90 °C, supporting elevated cabinet conditions during high-duty operation. A minimum insulation resistance of 20 MΩ/km limits leakage currents in humid areas. With a compact 1.5 mm² cross-section per phase and a rated insulation of 600/1000 V, the power wires satisfy standard low-voltage motor circuits while keeping overall cable diameter small for tight routing spaces.
Dynamic performance is complemented by a torsional allowance of ±30 °/m, enabling rotary tables or robots to twist the bundle without stressing the jacket. Minimum flex routing is limited to 7.5 × D in motion, whereas static installation may follow the 5 × D guideline. The internal layout of 4x L + 4x 0.75 mm² maintains balanced impedance, and auxiliary conductors are shielded for control signals up to 450/750 V, preserving feedback integrity alongside the power cores.
Wake Industrial stocks this cable and can arrange same-day shipping when downtime is critical. Every purchase is covered by a 1-year warranty. Formal quotations remain valid for 30 days to assist maintenance planning.
Frequently Asked Questions about RL2-521DBB:
Q: How many bending cycles can the RL2-521DBB motor power cable withstand?
A: The RL2-521DBB cable supports up to 5,000,000 bending cycles, making it suitable for dynamic applications.
Q: What is the jacket material and color of the RL2-521DBB cable?
A: This cable features a PUR jacket in orange (RAL 2003), providing a durable and easily identifiable outer layer.
Q: Which motor generation is the RL2-521DBB cable compatible with?
A: The RL2-521DBB is designed for 2nd generation motors according to Bosch Rexroth Indramat's specifications.
Q: What is the minimum insulation resistance for the RL2-521DBB cable at 20°C?
A: The minimum insulation resistance of this model is 20 MΩ/km at +20°C, ensuring strong electrical isolation.
Q: What is the maximum allowable conductor temperature for the RL2-521DBB cable when fixed?
A: The RL2-521DBB cable has a maximum conductor temperature of +90 °C when installed in a fixed application.
