| CSI Code | Short Description | Extended Description |
| 16200 | Electrical Power |
| 16210 | Electrical Utility Service |
| 16220 | Motors and Generator |
| 16230 | Generator Assemblies | Engine Generators Frequency Changers Motor Generators Rotary Converters Rotary Uninterruptible Power Units |
| 16240 | Battery Equipment | Batteries Battery Racks Battery Units Central Battery Equipment |
| 16260 | Static Power Converter | Battery Chargers Direct Current (DC) Drive Controllers Slip Controllers Static Frequency Converters Static Uninterruptible Power Supplies Variable Frequency Controllers |
| 16270 | Transformer | Distribution Transformers Network Transformers Pad - Mounted Transformers Power Transformers Substation Transformers |
| 16280 | Power Filters and Conditioner | Capacitors Chokes and Inductors Electromagnetic - Inference (EMI) Filters Harmonic Filters Power Factor Controllers Radio - Frequency - Interference (RFI) Filters Surge Suppressors Voltage Regulators |
| 16290 | Power Measurement and Control |