Bosch Rexroth DKC04.3-LK-ITB01 AC Servo Drive Controller | Replacement, Equivalent & Selection Guide
The Bosch Rexroth DKC04.3-LK-ITB01 is a compact, high-performance AC servo drive controller from the renowned DKC (IndraDrive Cs) Series. Designed for precision motion control in demanding industrial environments, this unit delivers reliable closed-loop servo performance for machine tool, packaging, and general automation applications. Whether you are sourcing a direct replacement, evaluating equivalent alternatives, or selecting the right drive for a new system, this guide provides the technical depth and selection criteria you need.
As part of Bosch Rexroth’s globally trusted IndraDrive platform, the DKC04.3-LK-ITB01 occupies a critical position in mid-range servo drive applications — offering a balance of compact form factor, digital communication capability, and robust motion control performance. It is widely deployed across European and Asian manufacturing facilities and remains one of the most frequently sourced DKC-series drives in the global industrial automation aftermarket.
Technical Specifications
- Part Number / SKU: DKC04.3-LK-ITB01
- Brand: Bosch Rexroth
- Series: DKC / IndraDrive Cs
- Type: AC Servo Drive Controller
- Communication Interface: SERCOS / Analog (ITB01 firmware variant)
- Axis Type: Single-axis servo drive
- Cooling Method: Forced air / convection (model-dependent)
- Weight: Approx. 15 kg
- Condition Available: New, Refurbished, Used-tested
- Origin: Germany
Note: Detailed electrical ratings (voltage, current, power) vary by sub-variant. Please provide your full nameplate data when inquiring.
Compatible Replacement & Equivalent Models
When the DKC04.3-LK-ITB01 is unavailable or discontinued, the following models are commonly evaluated as replacements. Compatibility depends on your firmware version, motor pairing, and bus topology — always verify before substitution:
- Bosch Rexroth DKC04.3-LK-ITB02 — Updated firmware variant; functionally similar, check SERCOS generation compatibility
- Bosch Rexroth DKC06.3-LK-ITB01 — Higher current rating variant in the same DKC series
- Bosch Rexroth DKC11.3-LK-ITB01 — Larger frame DKC drive; suitable for higher power axis replacement
- Bosch Rexroth HCS02 / HCS03 Series — IndraDrive Cs next-generation platform; requires firmware and parameter migration
- Siemens SINAMICS S120 — Cross-brand alternative for SERCOS-based systems; requires engineering adaptation
Important: Cross-brand replacements require re-commissioning and parameter re-mapping. Konmask.com recommends consulting your system integrator before substituting with non-Rexroth drives.
Why Choose the Original DKC04.3-LK-ITB01
- Drop-in compatibility: Direct replacement for existing DKC-series installations with no re-wiring or firmware migration
- Proven reliability: Bosch Rexroth DKC drives are field-proven in millions of machine-hours globally
- SERCOS native: ITB01 firmware supports SERCOS I/II ring topology natively — no gateway required
- Spare parts ecosystem: Extensive availability of compatible motors (MKD, MHD series), cables, and feedback systems
- OEM documentation: Full IndraWorks commissioning software support and Rexroth service network coverage
Typical Applications
- CNC machine tool axis control (milling, turning, grinding)
- Packaging machinery — servo-driven filling, sealing, and indexing
- Printing and converting equipment
- Injection molding machine servo axes
- Robotics and gantry systems
- Semiconductor and electronics assembly equipment
- Textile and winding machinery
System Compatibility
The DKC04.3-LK-ITB01 is designed to integrate within the Bosch Rexroth IndraDrive / DIAX04 ecosystem. Verified compatible components include:
- Servo Motors: Bosch Rexroth MKD, MHD, MSK series (matched by motor code)
- Power Supply Units: Rexroth HVR, HVE, KVR supply modules
- Controllers: Rexroth DIAX04, IndraMotion MLC/MTX, Bosch CNC CC220/CC300
- Feedback Systems: Resolver, EnDat, Hiperface encoders (firmware-dependent)
- Communication: SERCOS ring (fiber optic), analog ±10V command
- Software: IndraWorks DS / IndraWorks Engineering
Selection Guide
Use the following criteria to confirm the DKC04.3-LK-ITB01 is the correct drive for your application:
- Step 1 — Verify the part number: Confirm the full model code from the drive nameplate. Sub-variants (ITB01 vs ITB02) indicate different firmware generations.
- Step 2 — Match the motor: Provide the motor model code (e.g., MKD071B-061-GP0-KN) to confirm drive-motor pairing.
- Step 3 — Check the bus topology: Confirm SERCOS generation (I or II) used in your control cabinet.
- Step 4 — Assess power requirements: Verify DC bus voltage and continuous/peak current ratings match your axis load profile.
- Step 5 — Confirm firmware version: If replacing a failed unit, note the existing firmware version to ensure parameter compatibility.
Not sure which model fits? Send us your nameplate photo and our engineers will confirm the correct part within 24 hours.
Quality Assurance & Sourcing
- Multi-source procurement: We source from authorized distributors, OEM surplus, and certified refurbishers
- Incoming inspection: Every unit undergoes visual inspection, label verification, and functional pre-check
- Refurbished units: Fully tested to OEM specifications; capacitors and wear components replaced as needed
- Traceability: Serial number and firmware version documented for every shipment
- Packaging: Anti-static ESD packaging with shock-absorbing foam for international freight
- Warranty: 12-month warranty on new units; 6-month warranty on refurbished units
How to Order
- Submit your inquiry via [email protected] or WhatsApp +0086 19859288691
- Provide: full part number, required quantity, condition preference (new / refurbished / used-tested), and delivery country
- Receive a formal quotation within 24 business hours
- Confirm order and arrange payment (T/T, PayPal, or trade terms for verified buyers)
- Shipment via DHL / FedEx / UPS with full tracking and export documentation
Replacement & Compatibility FAQ
- Q: Can DKC04.3-LK-ITB02 directly replace DKC04.3-LK-ITB01?
- A: In most cases yes, as both share the same hardware platform. However, firmware parameter files may need to be re-loaded. We recommend backing up your existing parameters before swapping.
- Q: Is the DKC04.3-LK-ITB01 still in production?
- A: Bosch Rexroth has transitioned to the IndraDrive Cs (HCS) platform. The DKC series is in the service/spare parts phase. Konmask.com maintains stock for MRO and replacement needs.
- Q: Can I use a Siemens SINAMICS drive as a replacement?
- A: Technically possible with engineering effort, but not a drop-in replacement. Motor cables, feedback wiring, and control parameters all require adaptation. We recommend sourcing an original DKC unit for minimal downtime.
- Q: Do you provide the IndraWorks parameter file with the drive?
- A: We can provide the factory default parameter file. Customer-specific parameters should be backed up from the original drive before replacement.
- Q: What is the lead time for DKC04.3-LK-ITB01?
- A: In-stock units ship within 3–5 business days. For sourced units, typical lead time is 2–4 weeks depending on origin and condition.
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