Baumüller BM4145-ST0-00343-03 is an industrial DC-link infeed unit from the b maXX 4100 product family.

Manufacturer-Verified BM4145 Electrical Specifications:

• Manufacturer: Baumüller

• Product Family: b maXX 4100

• Base Unit: BM4145

• Product Type: Infeed / Feedback Unit

• Rated Input Apparent Power: 86 kVA

• Rated Input Current: 125 A

• Peak Input Current: 162.5 A

• PWM Switching Frequency: 8 kHz

• DC-Link Voltage Range: 640–760 VDC

• Internal DC-Link Capacitance: 3,055 µF

• Maximum Permitted External DC-Link Capacitance: 17 mF

• Internal DC-Link Discharge Time: 70 seconds

• Maximum DC-Link Output Power: 80 kW

• Peak DC-Link Power: 104 kW

• Maximum Peak Power Duration: 60 seconds

• Inductive Power Factor: 0.9–1.0

Additional BM4145 Operating Data:

• Maximum DC-Link Charging Time: 30 seconds

• Quick Discharge Time: Up to 5 seconds with the required discharge arrangement

• Maximum Permitted Ballast Current: 100 A

• Minimum External Ballast Resistance: 8 Ω

• Ballast Activation Voltage: 814 V

• Peak Ballast Power: 80 kW

• Permitted Continuous Ballast Power: 58 kW

• Power Loss at Mains Connection: 2,040 W

• Control Supply Power Consumption: Maximum 75 W

• Cooling Fan Power: 87 W at 230 VAC

• Power Heat-Sink Cooling Air Requirement: 260 or 210 m³/h depending on the BM4145-S/BM4145-A variant

• Internal Cooling Air Requirement: 60 m³/h

These are manufacturer-published BM4145 platform specifications. The exact installed cooling arrangement and optional components of BM4145-ST0-00343-03 remain unverified.

Commercial Product Identification:

• Requested Model: BM4145-ST0-00343-03

• Distributor-Reported Producer Number: 00392017

• Serial Number Referenced in One Commercial Listing: 315039142

Exact-Configuration Details Requiring Verification:

• Complete interpretation of the ST0, 00343 and 03 ordering segments.

• Installed rectifier and feedback configuration.

• Actual cooling arrangement.

• Required mains chokes, filters and ballast components.

• Hardware and firmware revisions.

• DC-link connection compatibility with existing axis units.

• Parameter datasets and replacement requirements.

Important: The 80kW figure represents the maximum DC-link power rating of the BM4145 platform. It is not an individual motor's mechanical output rating.

Safety Notice: Hazardous DC-link voltage may remain after mains disconnection. Qualified personnel must follow Baumüller's isolation, discharge and voltage verification procedures before servicing.