Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | Rexroth Indramat 200 BTV20.3AA-28B-33C-D-FW |
| Manufacturer | Bosch Rexroth (formerly Indramat) |
| Product Type | Servo System Power Supply / Rectifier / Filter Module |
| System Platform | Indramat System200 / BTV20 Series |
| Input Voltage | 3 × 400 VAC (+10% / -15%), 45-66 Hz |
| Output Voltage (DC Bus) | 200 VDC |
| Rated Output Power | 20 kW |
| Rated Output Current | 100 A (at 200 VDC) |
| Integrated Functions | Three-phase rectification, DC bus filtering, pre-charge control, status monitoring |
| Protection Features | Overvoltage, undervoltage, overcurrent, overtemperature, short circuit |
| Status Indication | LED indicators (Run, Fault, Ready) |
| Cooling Method | Forced air cooling (integrated fan) |
| Operating Temperature | 0°C to +45°C (full performance) |
| Storage Temperature | -25°C to +70°C |
| Installation Method | Backplane / DIN-rail mounting for BTV20 system |
| Protection Class | IP20 (for installation in electrical cabinet) |
| Connection Type | Busbar / Screw terminals |
| Product Status | Legacy product (obsolete, available as new surplus stock) |
Main Features and Advantages
Robust power conversion and integrated protection: At the heart of the Rexroth Indramat 200 BTV20.3AA-28B-33C-D-FW is a robust 20kW power stage that reliably converts 400VAC mains to a stable 200VDC bus. This reliable power supply ensures that all connected axis modules operate within their optimal voltage range, enabling precise motor control. The module incorporates comprehensive protective circuits that actively safeguard the drive system against overvoltage, undervoltage, overcurrent, overtemperature, and short circuits. This integrated protection not only prolongs the service life of the Rexroth Indramat 200 BTV20.3AA-28B-33C-D-FW itself but also protects the valuable downstream axis modules and motors from electrical faults.
Optimized system design and status monitoring: The Rexroth Indramat 200 BTV20.3AA-28B-33C-D-FW is engineered as a “book-style” module, a design that allows it to be mounted side-by-side with other BTV20 components in a compact, space-saving configuration within an electrical cabinet. It is equipped with a pre-charge circuit that safely limits inrush current during startup, preventing stress on the system’s fuses and contactors. Additionally, a set of clear, front-facing LED indicators provides immediate visual feedback on the module’s operating status, showing whether it is ready, running, or in a fault state, which greatly simplifies system diagnostics and maintenance. The specific FW suffix in the model number ensures the module’s logic is aligned with the host controller’s firmware version, a critical detail that avoids costly communication issues during replacement.
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