Bosch Rexroth TVD1.2-08-03 Supply Module | Replacement, Equivalent & Selection Guide
The Bosch Rexroth TVD1.2-08-03 is a DC bus supply module designed for use in Rexroth DIAX02/DIAX04 and Ecodrive drive systems. It provides regulated DC bus power to servo drives and is a critical component in precision motion control and CNC machine tool applications. This page provides full technical specifications, compatible replacement options, and a structured selection guide to help engineers and procurement teams make informed sourcing decisions.
Technical Specifications
- Part Number: TVD1.2-08-03
- Manufacturer: Bosch Rexroth
- Series: TVD1.2
- Type: DC Bus Supply Module
- Input Voltage: 3-phase AC, 380–480 V ±10%
- Output DC Bus Voltage: ~540 VDC (nominal)
- Continuous Output Current: 8 A
- Peak Output Current: 16 A
- Cooling: Forced air (internal fan)
- Protection Class: IP20
- Communication Interface: SERCOS / Analog
- Compatible Drive Series: DIAX02, DIAX04, Ecodrive
- Weight: approx. 13.6 kg
- Certifications: CE, UL
Compatible Replacement & Equivalent Models
The following models are functionally equivalent or drop-in replacements for the TVD1.2-08-03. Always verify electrical ratings and firmware compatibility before substitution.
- TVD1.2-08-03 (OEM) — Original Bosch Rexroth unit; preferred for warranty-sensitive applications
- TVD1.3-08-03 — Upgraded revision with enhanced diagnostics; backward compatible in most installations
- TVD1.2-15-03 — Higher current (15 A) variant; suitable when load expansion is anticipated
- HVR02.2-W018N — Rexroth regenerative supply; equivalent DC bus output, adds energy recovery
- KDV1.3-100-220/300-115 — Older Indramat-series equivalent; requires adapter wiring
Note: Third-party or refurbished equivalents may be available. Contact support@konmask.com for cross-reference verification.
Why Choose the Original TVD1.2-08-03
- Factory-tested and calibrated to Bosch Rexroth tolerances
- Full firmware and parameter compatibility with existing DIAX/Ecodrive configurations
- Guaranteed interoperability with Rexroth drive controllers (DKC, HDS, HMS series)
- Traceable serial number and production batch for audit and warranty purposes
- Reduced commissioning time — no parameter re-mapping required
Typical Applications
- CNC machine tool spindle and axis drives
- Injection molding machine servo systems
- Printing and packaging line motion control
- Robotic arm and gantry drive power supply
- Semiconductor and electronics manufacturing equipment
- Industrial press and forming machine servo drives
System Compatibility
The TVD1.2-08-03 is designed to integrate directly with the following Bosch Rexroth drive and control platforms:
- Drive Controllers: DKC01.1, DKC02.3, HDS02.2, HMS01.1
- Control Systems: Rexroth IndraControl, Bosch CNC (BRC/MTX)
- Bus Systems: SERCOS I/II, Profibus-DP (via gateway)
- Cabinet Standards: IEC 61800-5-1 compliant panel integration
Selection Guide
Use the following criteria to confirm the TVD1.2-08-03 is the correct module for your application:
- Step 1 — Verify input voltage: Confirm 3-phase 380–480 VAC supply is available at the cabinet
- Step 2 — Calculate total drive load: Sum the continuous DC bus current demand of all connected drives; must be ≤ 8 A for this model
- Step 3 — Check drive series: Confirm drives are DIAX02, DIAX04, or Ecodrive series
- Step 4 — Confirm firmware version: Check drive firmware is compatible with TVD1.2 supply (refer to Rexroth project planning guide DOK-DIAX02)
- Step 5 — Evaluate upgrade path: If load may increase, consider TVD1.2-15-03 (15 A) or HVR02.2 regenerative supply
Quality Assurance & Sourcing
- All units sourced from authorized Bosch Rexroth distributors or certified refurbishers
- Pre-shipment functional test: DC bus output voltage, current limit, and fault relay verification
- Packaging: anti-static foam, moisture barrier bag, and shock-rated outer carton
- Documentation included: test report, CE declaration, and original Bosch Rexroth datasheet
- Warranty: 12 months from shipment date (new units); 6 months (refurbished units)
How to Order
- Part Number: TVD1.2-08-03
- Condition: New / Refurbished (specify at checkout or via inquiry)
- Lead Time: In-stock units ship within 2 business days; sourced units 5–15 business days
- Minimum Order: 1 unit
- Payment: T/T, PayPal, credit card (via Shopify Payments)
- Shipping: DHL / FedEx / UPS international express; sea freight available for bulk orders
- RFQ / Bulk Pricing: support@konmask.com | +0086 19859288691
Replacement & Compatibility FAQ
Q: Can the TVD1.2-08-03 replace a TVD1.2-15-03?
A: Only if total drive load is ≤ 8 A. The -15-03 has higher current capacity; downgrading may cause DC bus undervoltage faults under heavy load.
Q: Is the TVD1.2-08-03 compatible with SERCOS III?
A: No. This module supports SERCOS I/II. For SERCOS III systems, use the HMV01.1E or IndraDrive supply series.
Q: Can I use a refurbished unit in a production environment?
A: Yes, provided the unit has passed functional testing and carries a valid warranty. Konmask.com provides test reports for all refurbished units.
Q: What is the difference between TVD1.2 and TVD1.3 series?
A: TVD1.3 adds enhanced onboard diagnostics and improved EMC filtering. Both are electrically compatible with the same drive series.
Q: How do I identify a counterfeit or substandard unit?
A: Verify the Bosch Rexroth holographic label, check the serial number via Rexroth’s online verification portal, and request a test report from your supplier.
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Contact: support@konmask.com | +0086 19859288691
