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CSI MasterFormat™ Sub-Division List |
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| CSI Code | Short Description | Extended Description |
| 16400 | Low-Voltage Distribution |
| 16410 | Enclosed Switches and Circuit Breaker |
| 16415 | Transient Voltage Surge Suppression |
| 16420 | Enclosed Controller |
| 16425 | Switchboards |
| 16430 | Low-Voltage Switchgear |
| 16440 | Switchboards, Panelboards and Control Centers |
| 16442 | Panelboards |
| 16443 | Show and Television Power Panels |
| 16450 | Enclosed Bus Assemblies |
| 16452 | Grounding |
| 16460 | Low-Voltage Transformer |
| 16470 | Power Distribution Units |
| 16476 | Enclosed Circuit Breakers |
| 16477 | Fuses |
| 16490 | Low-Voltage Distribution Components and Accessories |
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