ABB 1KHW002356R0001 B5LD Power Supply Board

The ABB 1KHW002356R0001 B5LD Power Supply Board is the internal power supply board of the ABB drives product line (1KHW spare-part numbering), converting a 48 V DC input into the internal rail voltages required by the drive's electronic modules, and monitoring the internal voltages for undervoltage/overvoltage conditions via the DSP or control module.

Key Features

1. Internal power supply board for ABB drive electronics
2. Converts 48 V DC input to internal rail voltages for the drive's modules
3. Voltage monitoring — undervoltage/overvoltage supervision by DSP or control module
4. 1KHW-prefix spare-part numbering (ABB Drives product line)
5. Low-power board-level supply for control electronics
6. Made in Sweden (per one supplier; consistent with ABB Drives heritage)

1. Type Designation: B5LD
2. Order Code: 1KHW002356R0001
3. Product Type: Internal power supply board
4. Input Power: 48 V DC, allowable range +20%/−15% (approx. 40–58 V)
5. Function: Converts 48 V DC to internal rail voltages; monitors for undervoltage/overvoltage
6. Output Current: 5 A
7. Ripple & Noise: <150 mV peak-to-peak
8. Efficiency: ≥88%
9. Operating Temperature: −25 to +70 °C (derating above +60 °C)
10. Humidity: 5–95% RH noncondensing
11. Weight: 0.54 kg
12. Origin: Sweden

1. Verify the board part number (1KHW002356R0001) and revision against the drive spare-parts list before installation.
2. De-energize the drive and confirm DC-link discharge before handling the board; use ESD precautions.
3. Install the board in its designated slot; seat the connector(s) fully.
4. Confirm the 48 V DC input within the allowable range (+20%/−15%) before power-up.
5. After power-up, verify the internal rail voltages and absence of undervoltage/overvoltage alarms via the drive diagnostics before returning to service.

1. What is the B5LD used for? It is an internal power supply board for ABB drive electronics, converting 48 V DC into internal rail voltages and monitoring them for undervoltage/overvoltage (per supplier documentation).
2. What input does it need? 48 V DC, typically +20%/−15% (approx. 40–58 V), per the most specific supplier data.
3. Which product line does it belong to? The 1KHW order-code prefix is the ABB Drives spare-part numbering — a drive-cabinet internal board.
4. Where is it made? Sweden

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