Switchgear and controlgear is a general term covering switching devices and their combination with associated control, measuring, protective and regulating equipment, also assemblies of such devices and equipment with associated interconnections, accessories, enclosures and supporting structures.
| Type of current | Utilisation category | Typical application |
| AC | AC-1 | Non-inductive or slightly inductive loads, resistance furnaces |
| AC-2 | Slip ring motors: starting, switching off | |
| AC-3 | Squirrel cage motors: starting, switching off motors while running | |
| AC-4 | Squirrel cage motors: starting, regenerative braking, reversing, jogging | |
| AC-5a | Switching gas discharge lamps | |
| AC-5b | Switching of incandescent lamps | |
| AC-6a | Switching of transformers | |
| AC-6b | Switching of capacitor banks | |
| AC-8a | Switching hermetically sealed cooling compressor motors with manual reset of the overload release | |
| AC-8b | Switching hermetically sealed cooling compressor motors with automatic reset of the overload release | |
| AC-12 | Control of resistive loads and solid state loads with optocoupler isolation | |
| AC-13 | Control of solid state loads with transformer isolation | |
| AC-14 | Control of small electromagnetic loads | |
| AC-15 | Control of AC electromagnetic loads | |
| AC-20A – AC-20B | Connecting and disconnecting under no-load | |
| AC-21A – AC-21B | Switching of resistive loads including moderate overloads | |
| AC-22A – AC-22B | Switching of mixed loads, inductive and resistive loads including moderate overloads | |
| AC-23A – AC-23B | Switching of motor loads or other highly inductive loads | |
| DC | DC-1 | Non-inductive or low-inductive load, resistance furnaces |
| DC-3 | Shunt motors: Starting, braking by reversal, inching, dynamic braking of DC motors | |
| DC-5 | Series motors: Starting, braking by reversal, inching, dynamic braking of DC motors | |
| DC-6 | Switching of incandescent lamps | |
| DC-12 | Control of resistive loads and solid state loads with optocoupler isolation | |
| DC-13 | Control of DC electromagnetics | |
| DC-14 | Control of DC electromagnetic loads having economy resistors in the circuit | |
| DC-20A – DC-20B | Connecting and disconnecting under no-load | |
| DC-21A – DC-21B | Switching of resistive loads including moderate overloads | |
| DC-22A – DC-22B | Switching of mixed loads, inductive and resistive loads including moderate overloads | |
| DC-23A – DC-23B | Switching of motor loads or other highly inductive loads |
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