| AC | Alternating Current | Power |
| DC | Direct Current | Power |
| EMF | Electromotive Force | Fundamental |
| PCB | Printed Circuit Board | Components |
| IC | Integrated Circuit | Components |
| LED | Light Emitting Diode | Components |
| LCD | Liquid Crystal Display | Display |
| MOSFET | Metal-Oxide-Semiconductor Field-Effect Transistor | Components |
| BJT | Bipolar Junction Transistor | Components |
| FET | Field-Effect Transistor | Components |
| IGBT | Insulated-Gate Bipolar Transistor | Components |
| SCR | Silicon Controlled Rectifier | Components |
| TRIAC | Triode for Alternating Current | Components |
| VFD | Variable Frequency Drive | Power |
| UPS | Uninterruptible Power Supply | Power |
| PLC | Programmable Logic Controller | Control |
| SCADA | Supervisory Control and Data Acquisition | Control |
| DCS | Distributed Control System | Control |
| RTD | Resistance Temperature Detector | Sensors |
| PID | Proportional-Integral-Derivative | Control |
| RMS | Root Mean Square | Measurement |
| THD | Total Harmonic Distortion | Power Quality |
| PF | Power Factor | Power |
| kVA | Kilovolt-Ampere | Power |
| kW | Kilowatt | Power |
| kWh | Kilowatt-Hour | Energy |
| MCB | Miniature Circuit Breaker | Protection |
| MCCB | Moulded Case Circuit Breaker | Protection |
| RCCB | Residual Current Circuit Breaker | Protection |
| ELCB | Earth Leakage Circuit Breaker | Protection |
| GFI | Ground Fault Interrupter | Protection |
| GFCI | Ground Fault Circuit Interrupter | Protection |
| CT | Current Transformer | Measurement |
| PT | Potential Transformer | Measurement |
| AWG | American Wire Gauge | Wiring |
| SWG | Standard Wire Gauge | Wiring |
| NEC | National Electrical Code | Standards |
| IEC | International Electrotechnical Commission | Standards |
| IEEE | Institute of Electrical and Electronics Engineers | Standards |
| NEMA | National Electrical Manufacturers Association | Standards |
| IP | Ingress Protection | Standards |
| EMI | Electromagnetic Interference | EMC |
| EMC | Electromagnetic Compatibility | EMC |
| RFI | Radio Frequency Interference | EMC |
| ESD | Electrostatic Discharge | EMC |
| ADC | Analog-to-Digital Converter | Electronics |
| DAC | Digital-to-Analog Converter | Electronics |
| PWM | Pulse Width Modulation | Electronics |
| I2C | Inter-Integrated Circuit | Communication |
| SPI | Serial Peripheral Interface | Communication |
| UART | Universal Asynchronous Receiver-Transmitter | Communication |
| SMD | Surface Mount Device | Manufacturing |
| THT | Through-Hole Technology | Manufacturing |
| BOM | Bill of Materials | Manufacturing |
| DIP | Dual In-line Package | Packaging |
| QFP | Quad Flat Package | Packaging |
| BGA | Ball Grid Array | Packaging |
| SOT | Small Outline Transistor | Packaging |