Bosch Rexroth R911170436 Ruggedized Spring-Clamp Terminal

Product Overview

Bosch Rexroth R911170436 Ruggedized Spring-Clamp Terminal: Industrial Resilience for Harsh Environments

The Bosch Rexroth R911170436 is a precision-engineered spring-clamp connection terminal designed specifically for the IndraDrive servo drive series. Built to Bosch Rexroth’s exacting German engineering standards, this wiring accessory delivers consistent, vibration-resistant electrical connections in the most demanding industrial environments — from high-temperature steel mill control cabinets to moisture-laden offshore pump stations and dust-saturated mining automation panels.

In continuous production lines where downtime is measured in thousands of dollars per minute, the R911170436 provides the secure, tool-free spring-clamp termination that eliminates the loosening failures common with screw-type terminals under sustained mechanical vibration. Whether your IndraDrive system is managing a high-cycle CNC axis, a precision press feed, or a multi-axis robotic cell, this terminal ensures that every signal wire and power connection remains locked and reliable across the full operating lifecycle.

Rugged Specifications Table

Comprehensive Protection Solutions

The R911170436 spring-clamp terminal is a critical interface component within the broader Bosch Rexroth IndraDrive ecosystem. In a fully integrated servo drive cabinet, it works in concert with the IndraDrive HCS02 and HCS03 compact servo drive units, ensuring that motor feedback cables and power supply connections remain secure even under the thermal cycling stress of high-duty-cycle operations. When paired with the IndraDrive HMS01 multi-axis supply module, the spring-clamp termination on the DC bus wiring prevents the micro-arcing that can degrade bus bar connections over time.

In systems where the IndraDrive communicates over SERCOS III or PROFINET fieldbus architectures, signal integrity at every terminal point is non-negotiable. The R911170436 ensures that the low-voltage control wiring connecting the drive to a Bosch Rexroth IndraControl L or IndraControl XM PLC remains free from the intermittent contact resistance that causes unexplained drive faults and nuisance trips. For installations using IndraDyn S MSK servo motors, the encoder and resolver cable terminations benefit directly from the vibration-locking spring-clamp design.

In control cabinets where Rexroth HNF01 mains filters and HNL01 mains chokes are installed upstream of the drive, proper termination of the filter ground and PE connections is essential for EMC compliance. The R911170436 provides the reliable ground termination that keeps conducted emissions within IEC 61800-3 limits. Similarly, when IndraDrive HLB01 braking resistors are wired into the system for regenerative energy dissipation, secure terminal connections prevent the thermal runaway risks associated with high-resistance joints under braking load.

For multi-axis systems using the IndraDrive Mi KCU02 drive-integrated motor concept, where drives are mounted directly on the machine frame rather than in a central cabinet, the spring-clamp terminal’s resistance to shock and vibration is especially valuable. The R911170436 is also a recommended spare for any installation using Rexroth IndraDrive Cs compact integrated drives, where the compact form factor places additional mechanical stress on wiring terminations.

Application in Critical Infrastructure

In oil and gas processing facilities, IndraDrive servo systems control precision valve actuators, compressor control axes, and pipeline pig launcher mechanisms. The R911170436 terminal ensures that control cabinet wiring remains intact despite the constant low-frequency vibration transmitted from rotating machinery and the thermal shock of outdoor-to-indoor temperature transitions in desert or arctic environments.

In mining and mineral processing operations, where fine conductive dust is a persistent contamination risk, the spring-clamp mechanism’s sealed contact geometry reduces the risk of dust ingress at the wire entry point compared to open-barrel screw terminals. Conveyor drive systems, crusher control panels, and hoist drive cabinets all benefit from the long-term connection stability that the R911170436 provides.

In power generation and utilities — including hydroelectric turbine control, wind turbine pitch drive systems, and grid-connected energy storage — IndraDrive systems operate in environments with significant electromagnetic interference from high-voltage switching. Secure, low-resistance terminations at every control wire connection point are essential for maintaining the signal integrity that prevents nuisance trips and false safety shutdowns.

In metallurgy and steel production, rolling mill drives and continuous casting machine axes operate under extreme thermal loads and vibration. The R911170436 is a proven wiring accessory for these environments, where a loose terminal connection can cause a drive fault that halts an entire production strand. In water treatment and municipal infrastructure, pump drive systems and aeration blower controls rely on IndraDrive technology for energy-efficient variable-speed operation, and the spring-clamp terminal’s corrosion-resistant contact design supports reliable long-term operation in humid plant environments.

Security & Quality FAQ

Q1: What does the 12-month warranty cover for the R911170436?
The 12-month warranty covers all manufacturing defects in materials and workmanship from the date of shipment. If the terminal exhibits contact failure, spring mechanism defects, or dimensional non-conformance under normal installation and operating conditions, we will provide a replacement unit at no charge. The warranty applies to units installed in accordance with Bosch Rexroth IndraDrive wiring guidelines.

Q2: How is each unit tested before shipment?
Every R911170436 unit undergoes pre-shipment inspection covering dimensional verification, spring-clamp mechanism function check, and visual inspection for contact surface integrity. Units sourced from authorized distribution channels are verified against Bosch Rexroth OEM part number documentation to confirm authenticity before dispatch from our Xiamen warehouse.

Q3: Is the R911170436 compatible with all IndraDrive variants?
The R911170436 is designed as a wiring accessory for the IndraDrive product family, including HCS, HMS, HMD, CSH, and CSB series drives. For specific compatibility with your drive model and firmware version, we recommend cross-referencing the Bosch Rexroth IndraDrive wiring diagram for your exact drive type. Our technical team can assist with compatibility confirmation prior to order.

Q4: Can you support long-term or repeat supply of this part?
Yes. TOPNLMS maintains ongoing stock of IndraDrive wiring accessories including the R911170436 to support both emergency replacement and planned maintenance programs. We can accommodate blanket purchase orders and scheduled delivery arrangements for customers managing multi-site IndraDrive installations or preventive maintenance spare parts programs. Contact us to discuss volume pricing and supply agreements.