What Are Some Examples of Electrical Cabinets?

Electrical cabinets can look similar from the outside, yet the equipment inside may perform completely different jobs. Confusing cabinet types can lead to poor equipment selection.

Common examples of electrical cabinets include power distribution cabinets, industrial control cabinets, PLC cabinets, motor control centers, VFD cabinets, switchgear cabinets, automation cabinets, metering cabinets, solar electrical cabinets, battery energy storage cabinets, and EV charging distribution cabinets. Each type is configured around a specific power, protection, control, or monitoring function.

Electrical cabinets are therefore better classified by function than by appearance. IEC 61439 covers low-voltage switchgear and controlgear assemblies used for electrical-energy generation, distribution, conversion, and control, while different parts of the series address particular assembly applications.

What Are the Most Common Types of Electrical Cabinets?

The most common cabinet types can be divided into power, control, motor, automation, monitoring, and application-specific systems.

Typical electrical cabinets include distribution cabinets for routing power, control cabinets for operating machinery, PLC cabinets for automation, MCCs for groups of motors, VFD cabinets for variable-speed drives, switchgear cabinets for switching and protection, and specialized cabinets for solar, battery storage, EV charging, telecommunications, and other applications.

Here is a practical comparison:

Electrical Cabinet Example	Main Function	Typical Components
Power distribution cabinet	Distribute electricity	Breakers, busbars, meters, feeders
Industrial control cabinet	Control machinery	Relays, contactors, PLC, power supplies
PLC cabinet	Automation	PLC, I/O, relays, network equipment
MCC	Control multiple motors	Motor starters, breakers, contactors, drives
VFD cabinet	Control motor speed	VFD, breaker, reactor, controls
Switchgear cabinet	Switching and protection	Breakers, busbars, relays, meters
Metering cabinet	Measure electricity	Meters, CTs, terminals
Solar cabinet	Solar distribution/protection	Disconnects, breakers, SPDs, monitoring
BESS electrical cabinet	Storage-system power/control	Protection, control, communication equipment
EV charging cabinet	Charging power distribution	Breakers, protection, metering, controls

These categories can overlap.

For example, a VFD cabinet is also a type of industrial control cabinet.

A solar cabinet may combine power distribution, protection, metering, and communication.

The cabinet name usually identifies its primary function, not every function inside it.

What Is a Power Distribution Cabinet?

A power distribution cabinet is one of the easiest examples to recognize.

A power distribution cabinet receives electrical power from an upstream source and distributes it among multiple downstream circuits or loads. It typically contains busbars, circuit breakers, fuses, disconnects, metering equipment, surge protection, and outgoing feeders for machinery, buildings, HVAC systems, chargers, or other electrical loads.

The basic architecture is:

Incoming Power → Main Protection → Busbar → Branch Protection → Loads

Imagine a factory receiving low-voltage power from a transformer.

Instead of connecting every machine directly to the transformer, electricity enters a distribution assembly.

From there, individual protected circuits can feed:

production lines,

pumps,

air compressors,

lighting,

HVAC,

EV chargers,

and other equipment.

NEMA describes distribution switchboards as assemblies that can contain switching, measuring, ground-fault sensing, transformation, circuit-control, and protection equipment, typically on a floor-mounted framework.

The central purpose is therefore:

one incoming electrical source → multiple controlled and protected outgoing circuits.

What Is an Industrial Control Cabinet?

A control cabinet manages how equipment operates.

An industrial control cabinet contains electrical and electronic devices used to control machinery or industrial processes. Typical components include contactors, relays, PLCs, motor drives, power supplies, transformers, terminal blocks, safety devices, circuit protection, communication equipment, and operator-interface connections.

Consider a packaging machine.

The machine may contain:

motors,

conveyors,

sensors,

pneumatic valves,

heaters,

and emergency-stop devices.

The control cabinet coordinates them.

A simplified control flow might be:

Sensor → PLC → Control Logic → Relay/VFD → Motor

The sensor detects an event.

The PLC processes the signal.

The program decides what should happen.

A relay, contactor, or drive controls the output.

The motor or other load responds.

Therefore, the cabinet acts almost like the electrical control center of the machine.

Industrial control cabinets are common in:

manufacturing,

food processing,

packaging,

water treatment,

material handling,

HVAC,

mining,

and automated production.

What Is a PLC Cabinet?

A PLC cabinet is a specialized control cabinet built around programmable automation.

A PLC cabinet houses a Programmable Logic Controller and supporting components used to automate machines or processes. It commonly contains PLC processors, input/output modules, 24 V DC power supplies, relays, terminal blocks, Ethernet switches, communication modules, circuit protection, and wiring interfaces for field sensors and actuators.

A PLC receives inputs such as:

temperature,

pressure,

position,

level,

speed,

and switch status.

It then executes programmed logic.

The output might control:

a motor,

valve,

pump,

heater,

alarm,

or production sequence.

The architecture can be represented as:

Sensors → PLC Inputs → Program → PLC Outputs → Equipment

For example, a water-treatment PLC cabinet could monitor tank level.

When the water level falls below a defined point, the PLC can command:

Pump ON.

When the level reaches the upper limit:

Pump OFF.

Real applications can involve thousands of signals and much more sophisticated logic.

This makes PLC cabinets fundamental to industrial automation.

What Is a Motor Control Center?

A Motor Control Center, or MCC, organizes control and protection for multiple motors.

An MCC is an electrical assembly that centralizes motor control, protection, and power distribution. Depending on the system, it can contain motor starters, contactors, circuit breakers, overload protection, VFDs, soft starters, control transformers, meters, communication devices, and individual motor-control sections.

Imagine a manufacturing facility operating:

20 motors.

Instead of creating 20 completely separate control installations, the motor-control functions can be organized into an MCC.

Individual sections may control:

Motor 1,

Motor 2,

Motor 3,

and so on.

This simplifies:

power distribution,

maintenance,

troubleshooting,

and equipment organization.

MCCs are commonly found in:

factories,

water plants,

mines,

oil and gas facilities,

commercial HVAC plants,

and process industries.

The key distinction is:

Distribution Cabinet → primarily distributes power

while:

MCC → distributes power and controls motors.

What Is a VFD Cabinet?

A VFD cabinet is designed around a Variable Frequency Drive.

A VFD cabinet contains a variable-frequency drive and supporting electrical equipment used to control the speed and torque of an AC motor. Depending on the application, it may also contain breakers, fuses, contactors, reactors, filters, bypass equipment, control power supplies, cooling systems, PLC interfaces, and communication devices.

A conventional motor connected directly to a fixed-frequency supply tends to operate according to the available line frequency and motor characteristics.

A VFD electronically changes the frequency and voltage supplied to the motor.

The simplified path is:

AC Supply → VFD → Controlled AC Output → Motor

This enables adjustable motor speed.

Common VFD applications include:

pumps,

fans,

conveyors,

compressors,

mixers,

and industrial machinery.

VFD cabinets often need careful thermal engineering because power electronics generate heat.

That means enclosure design must consider:

airflow,

ambient temperature,

VFD losses,

cabinet dimensions,

and environmental protection.

A VFD cabinet is therefore a good example of how:

Electrical Design + Thermal Design

must work together.

What Is a Switchgear Cabinet?

Switchgear cabinets are primarily associated with switching, isolation, distribution, and protection.

A switchgear cabinet contains equipment used to switch, control, isolate, and protect electrical circuits. Depending on voltage and application, equipment may include circuit breakers, disconnecting devices, busbars, protective relays, metering, instrument transformers, control systems, and communication equipment.

IEC 61439-2 covers low-voltage power switchgear and controlgear assemblies up to 1,000 V AC or 1,500 V DC and includes assemblies associated with electrical-energy generation, transmission, distribution, conversion, and equipment control.

A simplified system could be:

Transformer → Switchgear → Distribution → Loads

The switchgear can help operators:

energize circuits,

de-energize circuits,

isolate equipment,

and interrupt fault current through appropriate protective equipment.

Switchgear can range from relatively compact low-voltage assemblies to much larger installations.

Because fault energy can be substantial, switchgear design involves much more than placing breakers inside a steel enclosure.

Electrical ratings and verification are fundamental.

What Is a Metering Cabinet?

A metering cabinet focuses on electrical measurement.

A metering cabinet houses equipment used to measure electrical parameters or energy consumption. It can contain electricity meters, current transformers, voltage-sensing equipment, terminal blocks, fuses, communication devices, and related wiring for utility, commercial, industrial, or energy-management applications.

A metering cabinet might measure:

voltage,

current,

power,

energy,

power factor,

and demand.

In a commercial building, meters can track:

whole-building consumption

or:

individual tenants.

In a factory, metering can separate energy consumption by:

production line,

machine group,

HVAC system,

or department.

In a solar or battery-storage installation, meters can monitor:

grid import,

grid export,

solar production,

battery charging,

and battery discharge.

Therefore:

Metering Cabinet = Measurement + Monitoring

rather than primarily:

Power Control.

What Is an Automation Cabinet?

An automation cabinet integrates the equipment needed for automated operation.

An automation cabinet typically combines PLCs, industrial computers, I/O modules, communication switches, safety controllers, relays, power supplies, terminal blocks, and sometimes motor-control equipment. Its purpose is to coordinate sensors, machines, actuators, networks, and software within an automated process.

A modern production line might include:

robots,

conveyors,

vision cameras,

servo motors,

safety scanners,

sensors,

and human-machine interfaces.

The automation cabinet connects these elements.

Its communication network might link:

PLC ↔ HMI ↔ VFD ↔ Servo Drive ↔ Remote I/O ↔ Industrial Network

This means modern electrical cabinets increasingly carry:

data

as well as:

power.

Good cabinet design must therefore consider electromagnetic interference and wiring organization.

Power cables and sensitive communication wiring should not simply be routed without considering their interaction.

What Is a Solar Electrical Cabinet?

Solar installations often require dedicated distribution and protection equipment.

A solar electrical cabinet houses equipment used to distribute, isolate, protect, monitor, or control electrical circuits in a photovoltaic system. Depending on whether it is on the DC or AC side, it may contain disconnects, circuit breakers, fuses, surge-protection devices, meters, communication equipment, busbars, and control devices.

A simplified PV system is:

Solar Panels → DC Protection → Inverter → AC Protection → Building/Grid

The cabinet may be installed:

before the inverter,

after the inverter,

or at another distribution point.

Its design depends heavily on:

system voltage,

DC versus AC circuits,

current,

short-circuit characteristics,

environment,

and local electrical requirements.

Outdoor solar cabinets may also need appropriate protection against:

rain,

dust,

sunlight,

temperature,

and corrosion.

This makes enclosure selection especially important.

What Is a Battery Energy Storage Electrical Cabinet?

Battery-storage systems can contain several types of electrical cabinets.

A BESS electrical cabinet houses power-distribution, protection, monitoring, communication, or control equipment associated with a battery energy storage system. Depending on the architecture, separate cabinets may support battery control, DC distribution, auxiliary power, PCS connections, site controls, metering, or communication rather than storing battery cells themselves.

This distinction is important.

The phrase:

battery cabinet

can mean a cabinet physically containing battery modules.

But:

BESS electrical cabinet

may instead contain electrical and control equipment.

A simplified energy-storage architecture is:

Battery → DC Protection → PCS/Inverter → AC Distribution → Grid/Load

Alongside this power path may be:

BMS → EMS → PCS → Site Controller

Electrical cabinets can support both paths.

Typical equipment may include:

DC breakers,

fuses,

contactors,

auxiliary power supplies,

communication equipment,

meters,

control devices,

and distribution equipment.

In large BESS projects, several specialized cabinets may work together rather than one cabinet performing every function.

What Is an EV Charging Electrical Cabinet?

High-power charging sites often require substantial electrical distribution equipment.

An EV charging electrical cabinet can contain switching, protection, metering, distribution, communication, and control equipment supporting one or more charging points. The exact configuration depends on charger power, AC or DC architecture, number of charging ports, upstream electrical service, and whether power conversion is centralized or located within individual chargers.

IEC 61439-7 specifically addresses assemblies for applications including EV charging stations, among other specialized public-site applications.

Consider a charging site with:

10 charging points.

The upstream architecture might resemble:

Utility → Transformer → Main Distribution → Charging Equipment → EVs

The cabinet or assembly may provide:

main protection,

branch protection,

metering,

communication,

and load-management interfaces.

Larger fast-charging stations can require significantly more sophisticated electrical infrastructure than a single residential EV charger.

What Is an Outdoor Electrical Cabinet?

“Outdoor” describes the installation environment rather than the electrical function.

An outdoor electrical cabinet is an enclosure or assembly designed for electrical equipment installed outside. Depending on the environment, it may need protection against rain, dust, sunlight, corrosion, temperature extremes, condensation, ice, and unauthorized access while still providing sufficient thermal management for internal equipment.

An outdoor cabinet could actually be:

a distribution cabinet,

control cabinet,

solar cabinet,

telecommunications cabinet,

EV charging cabinet,

or utility distribution cabinet.

IEC 61439-5:2023 covers public electricity network distribution assemblies and includes outdoor enclosed assemblies suitable for open-air installation.

In North America, NEMA 250 defines enclosure types for different environmental conditions. It covers both indoor-only types and types intended for indoor or outdoor locations.

Therefore:

Outdoor Cabinet ≠ One Electrical Function.

It describes where the cabinet operates.

What Is a Wall-Mounted Electrical Cabinet?

Wall-mounted cabinets are common where equipment quantity and weight are relatively limited.

A wall-mounted electrical cabinet is a compact enclosure installed on a wall, machine frame, or similar vertical structure. It is commonly used for small control systems, PLCs, terminal blocks, relays, communications, local distribution, and machine-control equipment where a large floor-standing enclosure is unnecessary.

Typical applications include:

small pumps,

HVAC controls,

machine controls,

lighting systems,

security systems,

small PLC installations,

and local distribution.

The major benefit is:

space efficiency.

The cabinet does not occupy significant floor area.

However, wall mounting creates limitations.

Designers must consider:

cabinet weight,

wall strength,

equipment depth,

cable entry,

door clearance,

maintenance access,

and thermal performance.

Once equipment becomes too:

large,

heavy,

or thermally demanding,

a floor-standing cabinet may become more practical.

What Is a Floor-Standing Electrical Cabinet?

Floor-standing cabinets provide more space for larger systems.

A floor-standing electrical cabinet is a larger enclosure supported from the floor and commonly used for industrial control, automation, motor drives, distribution, switchgear, and other systems requiring substantial component space, cable routing, thermal management, or maintenance access.

A floor-standing cabinet might be:

600 mm wide,

800 mm wide,

or much larger.

Multiple cabinets can also be arranged side by side.

This allows complex systems to separate:

incoming power,

distribution,

motor drives,

PLC equipment,

and communications.

For example:

Cabinet 1 → Main Distribution

Cabinet 2 → VFDs

Cabinet 3 → PLC and Control

Cabinet 4 → Communication

Separating functions can improve:

maintenance,

thermal management,

wiring organization,

and expansion.

But larger cabinets also require more:

floor space,

material,

transportation effort,

and installation planning.

How Do Electrical Cabinets Differ by Environment?

Two cabinets performing the same electrical function can require completely different enclosure designs.

Electrical cabinets must be matched to their environment. Indoor cabinets may require basic protection against accidental contact and dirt, while outdoor, washdown, corrosive, dusty, or hazardous environments can require more specialized enclosure construction, sealing, materials, thermal management, and applicable ratings.

NEMA 250, for example, covers multiple enclosure types for indoor and outdoor conditions and classifies protection for specific environmental conditions.

Imagine the same PLC system in three locations.

Location A: Clean indoor electrical room

The enclosure requirements may be relatively straightforward.

Location B: Outdoor solar site

Now the cabinet may face:

rain,

dust,

sunlight,

heat,

and condensation.

Location C: Food-processing washdown area

Now water exposure and corrosion can become major design considerations.

The electrical components could remain similar.

The cabinet design changes significantly.

Therefore:

Same Electrical Function ≠ Same Enclosure Requirement.

Which Electrical Cabinet Is Right for an Application?

Start with function, then evaluate electrical and environmental requirements.

The correct electrical cabinet depends on what equipment must be powered or controlled, system voltage and current, fault conditions, component dimensions, installation environment, thermal load, cable routing, maintenance needs, enclosure protection, and applicable standards. Selecting a cabinet only by external dimensions can result in inadequate protection, cooling, wiring space, or service access.

A useful engineering sequence is:

Function → Voltage → Current → Protection → Components → Environment → Thermal Design → Enclosure → Wiring → Standards

For example, if the application controls:

five motors,

the design may begin with an:

MCC or motor-control cabinet.

If it controls:

a production machine,

the starting point may be an:

industrial control cabinet.

If it distributes electricity to:

20 branch circuits,

a:

distribution cabinet

may be appropriate.

If it manages:

solar and battery equipment,

the system may require:

multiple specialized electrical cabinets.

The name follows the job.

My Insights: How Should We Understand Different Electrical Cabinet Examples

Electrical cabinet categories make the most sense when they are organized by electrical function rather than by physical appearance.

The best way to understand electrical cabinet examples is to ask what each cabinet does. Distribution cabinets route power, control and PLC cabinets automate equipment, MCCs manage motors, VFD cabinets regulate motor speed, switchgear handles switching and protection, while solar, BESS, and EV charging cabinets adapt these functions to specific energy applications.

My First Insight: Cabinet Names Usually Describe Their Main Job

Consider:

PLC Cabinet

The name identifies automation.

Consider:

VFD Cabinet

The name identifies motor-speed control.

Consider:

Distribution Cabinet

The name identifies electrical distribution.

The enclosure itself may look similar.

The internal engineering is different.

My Second Insight: One Cabinet Can Perform Several Functions

Real electrical systems rarely fit perfectly into one category.

A solar cabinet may provide:

distribution,

protection,

metering,

and communication.

A VFD cabinet may contain:

a PLC,

contactors,

breakers,

and communication equipment.

Therefore, cabinet categories should be treated as:

functional descriptions

rather than rigid boundaries.

My Third Insight: Electrical Function and Enclosure Type Are Different

A control cabinet could be:

wall-mounted,

floor-standing,

indoor,

or outdoor.

These terms describe different characteristics.

For example:

Control Cabinet = Function

Wall-Mounted Cabinet = Installation Method

Outdoor Cabinet = Environment

NEMA Type/IP Rating = Protection Classification

Keeping these concepts separate makes cabinet specifications much clearer.

My Fourth Insight: Modern Energy Systems Need More Specialized Cabinets

Solar, battery storage, and EV charging are expanding the role of electrical cabinets.

These applications combine:

high-power electronics,

DC and AC circuits,

digital communications,

meters,

automation,

and protection.

IEC 61439-7, for example, explicitly addresses assemblies for EV charging stations among its covered applications.

Modern electrical cabinets therefore increasingly manage:

Power + Data + Control.

My Fifth Insight: What Are Some Examples of Electrical Cabinets?

Examples of electrical cabinets include power distribution cabinets, industrial control cabinets, PLC cabinets, motor control centers, VFD cabinets, switchgear cabinets, metering cabinets, automation cabinets, solar electrical cabinets, BESS electrical cabinets, EV charging cabinets, and specialized indoor or outdoor enclosures. Each example is designed around a particular combination of power distribution, protection, control, monitoring, and environmental requirements.

The examples can be summarized as:

Example	Primary Purpose
Distribution cabinet	Distribute electrical power
Industrial control cabinet	Control machinery
PLC cabinet	Execute automation logic
MCC	Control multiple motors
VFD cabinet	Control motor speed
Switchgear cabinet	Switch, isolate, and protect circuits
Metering cabinet	Measure electrical parameters
Automation cabinet	Coordinate automated processes
Solar cabinet	Protect and control PV circuits
BESS electrical cabinet	Support battery-storage power/control systems
EV charging cabinet	Support charging power distribution
Wall-mounted cabinet	Compact installation
Floor-standing cabinet	Larger industrial installation
Outdoor cabinet	Protect equipment in outdoor environments

A useful final framework is:

Distribution → Control → Motor Control → Automation → Monitoring → Application-Specific Systems

This is more useful than classifying cabinets only by:

size,

color,

material,

or mounting style.

When selecting an electrical cabinet, first determine what electrical job must be performed. Then choose the components, voltage and current ratings, protection, enclosure type, cooling, dimensions, and environmental rating required for that job.

Conclusion

Electrical cabinets include distribution, control, PLC, MCC, VFD, switchgear, metering, solar, BESS, and EV charging cabinets, each designed for specific power, protection, or automation functions.