Baumüller 246278 BUM61-40/60-54-B-O-12 Servo Drive Power Unit
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Product Information
The Baumüller 246278, model BUM61-40/60-54-B-O-12, is a BUM61 series three-phase AC servo drive power unit for industrial automation and motion-control systems. It provides 40 A continuous output current and 60 A peak output current for servo applications with sustained motor power and short-duration overload capacity during changing machine loads. The unit uses a 400-460 V AC supply and a 24 V DC control supply, with a stated 29 kVA input apparent power capacity.
This BUM power unit uses a modular design with internal DC link management and is intended for existing Baumüller BUM servo drive systems. For a replacement, the electrical supply, continuous and peak current requirements, cabinet configuration, motor requirements, control architecture and wiring must match the installed machine. A spare should therefore be checked against the complete drive system and commissioned as part of the existing machine configuration rather than treated as a standalone plug-in replacement.
Baumüller 246278 is a discontinued servo drive power unit, making exact part-number and system compatibility checks important before installation. Its 400-460 V AC supply range, 24 V DC control supply, 40 A continuous output and 60 A peak output must correspond to the failed unit and the machine requirements. For an internal drive fault, a tested exchange unit or repair route through ABC Industrial Parts can support a faster return to production where a matching BUM61 unit is required.
Technical Specifications
| Manufacturer | Baumüller |
| Part number | 246278 |
| Model/type | BUM61-40/60-54-B-O-12 |
| Component type | Servo drive power unit |
| Product family | BUM |
| Series | BUM61 |
| Supply voltage range | 400-460 V AC |
| Number of phases | 3 |
| Control supply voltage | 24 V DC |
| Input apparent power | 29 kVA |
| Continuous output current | 40 A |
| Peak output current | 60 A |
| Lifecycle status | Discontinued |
| Design | Modular BUM61 design with internal DC link management |
Replacement and Spare Part Considerations
Use the exact Baumüller part number 246278 and model BUM61-40/60-54-B-O-12 when checking a replacement for an existing installation. Confirm the 400-460 V AC three-phase supply, 24 V DC control supply, 29 kVA input apparent power, 40 A continuous output and 60 A peak output against the machine requirements before fitting the spare.
The unit is discontinued and is intended primarily for replacement, repair and maintenance of existing Baumüller BUM modular servo drive systems. Potential newer Baumüller b maXX replacement systems require engineering verification of the electrical ratings, motor requirements, cabinet configuration and control architecture before selection. A matching exchange or repaired unit can help preserve the existing machine architecture when compatibility has been confirmed.
Frequently Asked Questions
What is Baumüller part 246278?
Baumüller 246278 is the BUM61-40/60-54-B-O-12, a BUM61 series three-phase AC servo drive power unit.
What are the current ratings of the BUM61-40/60-54-B-O-12?
The unit provides 40 A continuous output current and 60 A peak output current.
What supply does this Baumüller servo drive power unit require?
It uses a 400-460 V AC three-phase supply and a 24 V DC control supply. Its stated input apparent power is 29 kVA.
Can Baumüller 246278 be used as a direct replacement?
Replacement suitability depends on matching the installed unit's part number, supply, current ratings, motor requirements, cabinet configuration, control architecture and wiring.
Is Baumüller 246278 discontinued?
Yes. Baumüller 246278 is discontinued and is used for replacement, repair and maintenance of existing BUM modular servo drive systems.
Can a newer Baumüller b maXX unit replace this BUM61 power unit?
A newer Baumüller b maXX replacement may be considered, but the complete electrical and machine configuration requires engineering verification before selection.
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Data backup and recovery
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Specific firmware and hardware versions
If you are working with specific hardware or firmware versions that are no longer available from the manufacturer, ABC Industrial Parts is your partner. When making your enquiry, clearly state which versions you need, we will then look at the possibilities of supplying those versions, so that your installations continue to function optimally.
Disclaimer:
We are not an authorised distributor of Baumuller.
Product photos are for illustration purposes only and may differ from the actual product delivered.
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