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RKB0043 Bosch Rexroth Indramat

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Internal Product Review

The RKB0043 is a Bosch Rexroth Indramat ready-made Ethernet cable from the RKB Control Cables series, equipped with M12 4-pin connectors on both ends for secure and reliable connections. Rated for 3,000,000 bending cycles and Cat5e performance, this cable excels in applications demanding high flexibility and robust data transmission. Its Sercos III compatibility and broad operating temperature range make it an outstanding choice for industrial automation environments.

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Product Description:

The RKB0043 cable is manufactured by Bosch Rexroth Indramat within the RKB Control Cables series. It is supplied as a ready-made Ethernet cable that links drives, controllers, and decentralized I/O in industrial automation systems. Factory termination maintains matched impedance, reduces assembly time, and provides a plug-and-play connection for real-time motion commands and status feedback. The completed assembly also eliminates the need to attach individual connectors during machine installation.

Signal transport follows the deterministic bus protocol supported by Sercos III, and the stranded twisted pairs meet Cat5e transmission requirements for 100 Mbps full-duplex traffic. Both ends carry M12 four-pin connectors with shield continuity through the coupling nuts, enabling secure attachment to servo inverters and other compatible devices. Mechanical endurance reaches 3,000,000 bending cycles in continuous-flex drag-chain service. This duty rating supports continuous operation in linear gantries and multi-axis robots rather than occasional cable repositioning. When installed on mobile axes, the jacket should not be flexed below a dynamic loop radius of 7.5 × D, which helps prevent conductor fatigue and preserve signal attenuation. Cable clamps should not restrict movement or create sharp bends near either connector during repeated axis travel.

For static routing inside control cabinets, the minimum bend radius is 5 × D, permitting tighter routing than on moving axes. The conductor insulation remains stable from -40 °C to an operating ceiling of 70 °C, allowing the same assembly to withstand cold starts and sustained production heat. Long-term storage is permitted down to -50 °C without embrittlement, while the upper storage limit is 70 °C. During storage, the cable should remain within these temperature limits to protect jacket flexibility and conductor insulation. At transitions between fixed trays and dynamic energy chains, routing should provide enough clearance to avoid concentrated mechanical stress. The cable can be used in stationary and continuously moving sections of industrial equipment when the applicable bend radius is maintained.

Bending Cycles
3,000,000
Bus System
Sercos III
Cable Type
Ready-Made
Cable Variant
Ethernet Cable
Connector 1
M12 4-Pin Pins
Connector 2
M12 4-Pin Pins
Dynamic Bending Radius
7.5xD
Ethernet Category
Cat5e
Operating Temperature Max
70 °C
Operating Temperature Min
-40 °C
Static Bending Radius
5xD
Storage Temperature Max
70 °C
Storage Temperature Min
-50 °C

Frequently Asked Questions about RKB0043:

Q: What type of connectors does the RKB0043 cable have at each end?

A: This cable features M12 4-pin pin connectors on both ends for secure and reliable connections.

Q: How many bending cycles can the RKB0043 cable withstand during operation?

A: The RKB0043 is rated for up to 3,000,000 bending cycles, making it suitable for dynamic applications.

Q: What bus system is the RKB0043 cable compatible with for network connectivity?

A: This cable supports the Sercos III bus system for industrial communication.

Q: What are the minimum and maximum operating temperatures the RKB0043 cable can handle?

A: The RKB0043 operates within an extensive temperature range from -40°C to 70°C.

Q: Which Ethernet category does the RKB0043 cable meet for data communication standards?

A: The RKB0043 is an Ethernet Cat5e cable, designed for high-speed data transmission in industrial environments.

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