Siemens 6ES7972-4AA02-0XA0 SIMATIC DP Power Rail Booster
ManufacturerSiemensModel6ES7972-4AA02-0XA0Product TypeSIMATIC DP Power Rail Booster signal amplifier
01Product Identification
Siemens 6ES7972-4AA02-0XA0 is a SIMATIC DP Power Rail Booster for transmitting PROFIBUS DP communication through sliding-contact or collector-rail systems at rates up to 500 kbit/s. The booster forms the electrical interface between an RS485 PROFIBUS segment and the Power Rail path, supporting bidirectional telegram transfer in engineered stationary and mobile arrangements. Installation must follow the exact rail-section, termination, supply, grounding and switch-setting rules in the Siemens user guide.
Configuration ControlVerify the full article number, nameplate, electrical design, interfaces, software, wiring and lifecycle requirement before ordering.
02Engineering Data
| Manufacturer | Siemens |
|---|---|
| Article Number | 6ES7972-4AA02-0XA0 |
| Product Designation | SIMATIC DP Power Rail Booster |
| Primary Function | PROFIBUS DP signal amplification over sliding contacts |
| Maximum Data Rate | 500 kbit/s |
| Supply Range | 20.4 to 28.8 V DC |
| Maximum Current Consumption | 1.2 A |
| Maximum Power Loss | 20 W |
| Protection Class | IP20 |
| Network Role | Transparent signal amplifier in the Power Rail link |
| Installation Context | Engineered stationary and mobile booster arrangement |
03Functions
Operational Functions
- Amplifies PROFIBUS DP signals for transfer through a collector-rail section.
- Supports bidirectional communication between stationary and mobile network sides.
- Handles transmission rates up to 500 kbit/s.
- Provides a transparent link rather than acting as an addressed PROFIBUS station.
- Supports diagnostic and fault-indication functions described in the user guide.
- Uses a 24 V DC class supply within the documented 20.4 to 28.8 V range.
Identification
- Manufacturer: Siemens
- Model: 6ES7972-4AA02-0XA0
- Product Type: SIMATIC DP Power Rail Booster signal amplifier
- Status: Spare-part article
04Applications
Use Cases
- Traveling machinery using sliding contacts for PROFIBUS DP communication.
- Material-handling systems with fixed and mobile Power Rail Booster locations.
- Collector-rail links that require robust signal conversion between rail and RS485 sides.
- Maintenance replacement of the exact 6ES7972-4AA02-0XA0 article.
- Legacy PROFIBUS installations operating at no more than 500 kbit/s.
Compatibility Boundary
- Match the exact article number and the Siemens V2.1 Power Rail Booster user guide.
- Confirm the supported PROFIBUS rate, stationary/mobile role and complete rail-section topology.
- Verify 24 V DC supply quality, grounding, shielding, bus termination and DIL-switch settings.
- Inspect collector rails and sliding contacts because mechanical contact condition directly affects communication.
- Do not replace another Power Rail Booster revision solely by product name; dimensions and installation details differ.
05Lifecycle
- Siemens identifies this exact article as a spare-part product.
- Confirm current spare-part or repair availability for the required quantity.
- Retain the exact switch settings, wiring, rail-section plan and PROFIBUS parameters before removal.
- No alternative is treated as a direct replacement without an official system comparison.
- After replacement, verify both communication directions, all supported travel positions, fault output and stable bus operation.
