RLB3-127LEB Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RLB3-127LEB is a basic power cable from the RLB Motor Power Cables series, designed for direct motor-drive connection and supporting EFC controllers and MS2(X) motor series. It features a 35 mm² power wire cross section, a cable configuration of 4x L plus 4x 1.5 mm², and is rated for up to 5,000,000 bending cycles. The cable operates within a temperature range of -30 to 80 degrees Celsius.
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Product Description:
The RLB3-127LEB is a power cable manufactured by Bosch Rexroth Indramat and belongs to the RLB Motor Power Cables series. It links MS2(X) servo motors to EFC inverters with a direct motor-drive connection, giving installers a ready-made conductor set within the Rexroth Cables product group. The cable is built on a basic design profile that simplifies routing in drag-chain and stationary cabinet layouts while maintaining the current-carrying capacity required by medium-power servo axes.
This model withstands continuous operation in ambient temperatures from -30 to 80 °C, so it can remain inside cold-store lines or warm assembly cells without derating. Each phase conductor has a cross-section of 35 mm², reducing voltage drop over long runs, while control cores are provided as 4 × 1.5 mm² to support brake or sensor loops. A dynamic bending radius of 7.5xD allows repetitive chain movement without sheath damage, and the motor end terminates in a robust E (M50) connector that locks to the housing of MS2(X) machines. The assembly follows a 4×L cabling layout and is classified as a basic power cable, giving users predictable impedance when matched with EFC drives.
Mechanical endurance is demonstrated by 5,000,000 bending cycles, enabling long service intervals in three-shift production. For static runs, the minimum bend is limited to 5xD, preventing copper fatigue in fixed trays. Conductors are also coded as 1/0 AWG, providing an alternative sizing reference for North-American installations. The cable is qualified for Rexroth MS2 motion systems—denoted by the supported series tag MS2(X)—and can be stored or transported between -30 and 80 °C without loss of insulation integrity.
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Frequently Asked Questions about RLB3-127LEB:
Q: What type of motor connector does the RLB3-127LEB cable use?
A: The RLB3-127LEB cable is equipped with an E (M50) type motor connector.
Q: How flexible is the RLB3-127LEB cable in dynamic applications?
A: This cable can withstand dynamic bending with a radius of 7.5 times the diameter and endures up to 5,000,000 bending cycles.
Q: What is the operational temperature range of the RLB3-127LEB cable?
A: The RLB3-127LEB cable is designed for operation in ambient temperatures ranging from -30 to 80 °C.
Q: Which controllers and motor series are supported by the RLB3-127LEB cable?
A: It is directly compatible with EFC controllers and supports MS2(X) motor series.
Q: What is the cross section and configuration of the RLB3-127LEB cable?
A: The power wires in this cable feature a cross section of 35 mm², with a total cable configuration of 4x L plus 4x 1.5 mm² lines.
