
Huawei 2120731 DCDU-12B DC power distribution unit for telecommunications infrastructure.
The Huawei 2120731 is a DCDU-12B (DC Distribution Unit), a power distribution component designed to manage and distribute DC power within Huawei telecommunications equipment cabinets. This unit handles the distribution of -48V DC power from rectifier systems to various loads within the cabinet, providing circuit protection and monitoring capabilities.
The DCDU-12B is typically deployed in Huawei base station sites, transmission equipment rooms, and data centre environments where reliable DC power distribution is essential. It forms part of the power subsystem in Huawei’s telecommunications infrastructure solutions, working alongside rectifier modules and battery backup systems.
This is a legacy power distribution unit from Huawei’s established range of DC power infrastructure products. While newer DCDU variants have since been released, the DCDU-12B remains in active service across many deployed networks and is sought after for maintenance, expansion, and replacement purposes.
Available from Tech Star as new or refurbished stock. Submit a price enquiry for availability and lead time.

| Platform | Huawei OptiX |
|---|---|
| Manufacturer | Huawei |

| Platform | Huawei Telecommunications Infrastructure |
|---|---|
| Manufacturer | Huawei |

| Platform | OptiX OSN |
|---|---|
| Manufacturer | Huawei |

| Manufacturer | Huawei |
|---|

| Platform | NetEngine NE Series |
|---|---|
| Manufacturer | Huawei |

| Platform | CloudEngine 12800 Series |
|---|---|
| Manufacturer | Huawei |

| Platform | Huawei DCDU Series |
|---|---|
| Manufacturer | Huawei |
| Key Features | DC power distribution; Circuit protection; Multiple output branches; Cabinet-mount design |
|---|---|
| Applications | Base station power distribution; Telecommunications cabinet installations; Data centre DC distribution |
| Compatibility | Huawei telecommunications cabinets; Huawei rectifier systems; -48V DC power infrastructure |
| Specifications | -48V DC nominal input; Multiple protected output circuits; Rack/cabinet mounting |
| Platform | Huawei DCDU Series |
| Manufacturer | Huawei |
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