Description
- Model: LDMTR-01
- Part Number: 63940135F
- Brand: ABB
- Product Family: ABB LD drive / VFD spare parts
- Core Function: Electrical signal measurement and transducer interface
- Product Type: Measuring transducer board
- Associated Part Number: 3BHB007445P0001
- Application: ABB industrial drive systems
The available sources identify LDMTR-01 / 63940135F as a measuring transducer board and associate it with ABB LD drive equipment. Some reseller pages instead label it generically as an I/O module, so the precise system-level function should be confirmed against the drive-specific manual or nameplate before replacement.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Model | LDMTR-01 |
| Part Number | 63940135F |
| Related Part Number | 3BHB007445P0001 |
| Product Type | Measuring transducer board |
| Product Family | ABB LD / industrial drive spare |
| Main Function | Measurement and signal transducer interface |
| System Application | ABB industrial drive systems |
| Signal Type | Electrical measurement signals; exact channels require drive documentation |
| Isolation | Reported as isolated measurement circuitry by secondary sources; verify against OEM documentation |
| Dimensions | Not verified from ABB primary documentation |
| Weight | Not verified from ABB primary documentation |
| Operating Conditions | Not verified from ABB primary documentation |

ABB LDMTR-01 63940135F
The part-number association with 3BHB007445P0001 is independently shown by multiple industrial automation suppliers.
Product Introduction
ABB LDMTR-01 (63940135F) is identified in industrial automation parts databases as a measuring transducer board used within ABB drive equipment. Its role is associated with acquiring electrical measurement signals and providing the control system with the information required for drive monitoring and control functions.
For procurement, this is a drive-specific spare rather than a generic PLC I/O card. The exact electrical interface, signal channels, and mating hardware should therefore be checked against the installed drive revision before substitution.
Application Scenarios & Pain Points
Drive measurement boards are easy to overlook until a drive starts producing abnormal feedback, protection alarms, or incorrect control values. In a repair situation, replacing the wrong board can create a second fault rather than solve the first one.
Typical Application Scenarios
- High-power industrial drives — electrical feedback
The board is used within ABB drive equipment to support measurement and feedback functions needed by the control electronics. - Motor control systems — protection and monitoring
Accurate measurement data is required for control logic and protective functions. A defective transducer circuit can therefore affect both regulation and fault handling. - Drive maintenance — legacy spare replacement
LDMTR-01 is particularly relevant when maintaining older ABB drive installations where the original board must be matched by exact part number rather than by general board type. - Shutdown maintenance — critical spare stocking
For plants running legacy ABB drives, keeping the exact board reference in stores can be more practical than relying on a generic replacement because interface and calibration characteristics may differ.
Engineering Note
I would not classify 63940135F as a universal ABB I/O module merely because several reseller pages use that description. Other sources specifically identify it as an MTR measuring transducer board, including the association with 3BHB007445P0001.

ABB LDMTR-01 63940135F
Compatibility & Replacement Matrix
| Existing / Alternative | Compatibility | Engineering Note |
|---|---|---|
| ABB LDMTR-01 / 63940135F | Reference part | Confirm complete ordering code and board revision before installation. |
| ABB 3BHB007445P0001 | Associated equivalent/reference | Multiple supplier records identify this number together with / 63940135F. Verify physical label and revision. |
| ABB LDSTA-01 / 63940143B | Not a direct replacement | Identified as a different ABB LD-series board; do not substitute based on series designation alone. |
| Generic ABB I/O module | Not recommended | Functional designation, signal conditioning, connectors, scaling and drive firmware interface may differ. |
| Other ABB drive measurement board | Requires engineering verification | Check drive model, board revision, connector pinout, signal range and calibration requirements. |
Critical replacement check: verify the drive model, complete board label, revision, connector arrangement, and associated board number before installation. Public reseller data is inconsistent on the exact technical specification of this part, so unsupported voltage, channel-count, dimensional, or environmental values should not be used as purchasing specifications.



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