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In many automation projects, the industrial PC cabinet is treated as a secondary item.
The early selection logic is often simple:
“The industrial PC fits, the monitor is visible, the keyboard works, and the price is acceptable.”
That approach may pass the first installation. It may even pass FAT and site commissioning. But the real problems usually appear later, after the machine has been running for several months.
At that point, the issue is no longer whether the PC can fit inside the cabinet. The issue is whether the cabinet still allows proper installation, cable routing, thermal management, and maintenance.
That is why an industrial PC cabinet should not be selected only by price or outer dimensions. It should be selected as part of the automation system architecture.
For Rittal PC series applications, PC 5366050, PC 5366450, and PC 5368050 are used in different types of projects. The right choice depends on how the cabinet will be used: as a simple HMI operator station, as an expandable control terminal, or as a high-performance industrial computing enclosure.
Before comparing models, define what the industrial PC cabinet must actually do.
In most factory automation projects, the application falls into one of three categories.
| Application Type | Typical Equipment | Main Selection Criteria |
|---|---|---|
| HMI operator station | Industrial PC, monitor, keyboard, mouse | Standardized operation, protection, ergonomics |
| Control and communication terminal | IPC, Ethernet switch, gateway, power supply, I/O modules | Internal space, cable routing, future expansion |
| Industrial computing node | GPU IPC, vision computer, UPS, edge server | Cabinet depth, thermal management, service clearance |
This distinction matters.
A cabinet for a basic HMI operator station does not need the same internal space as a cabinet for a vision inspection system. A cabinet used for edge computing or machine data acquisition should not be selected like a simple monitor and keyboard enclosure.
In my view, the first question should not be “Which model is cheaper?”
The first question should be:
Will this cabinet only support today’s IPC, or will it need to support future devices, cables, and upgrades?
PC 5366050 is suitable for standard industrial PC workstation applications where the configuration is already defined and unlikely to change.
Typical dimensions:
| Parameter | Value |
|---|---|
| Width | 600 mm |
| Height | 1600 mm |
| Depth | 636 mm |
This model is a practical choice for applications such as:
If the project only requires one industrial PC, one display interface, keyboard access, and basic cable entry, PC 5366050 is usually a reasonable option.
It is especially suitable for OEM machine builders who need a repeatable cabinet design across multiple machines. When the same cabinet is used for 10, 30, or 100 machines, standardization reduces engineering time, assembly variation, spare parts complexity, and installation risk.
However, I would not recommend PC 5366050 for projects where the final configuration is still uncertain.
If the customer may later request remote access, MES connectivity, additional Ethernet ports, a UPS, or a small communication gateway, the cabinet can become crowded quickly. The problem is not one extra module. The problem is the combined impact of modules, cables, terminals, power distribution, and service access.
PC 5366050 is best for fixed-configuration HMI applications. It is less suitable for systems that are likely to grow after installation.
PC 5366450 is better suited for projects where the industrial PC cabinet needs more engineering flexibility.
This is a common situation in automation projects. At the beginning, the cabinet may appear simple. The original design may only include an IPC and operator interface. But after the system is in operation, additional requirements often appear:
Each item may look small on its own. Together, they create a real space and wiring problem.
This is where PC 5366450 becomes relevant. It is not selected because the cabinet must be fully occupied on day one. It is selected because the project has a realistic chance of expansion.
Typical applications include:
From an engineering point of view, PC 5366450 is a better fit when the cabinet must remain serviceable after additional components are installed.
Many retrofit problems are caused by cabinet space being underestimated at the beginning. Once the machine is installed, adding components may require improvised brackets, external boxes, new cutouts, or complete rewiring. The system may still work, but it becomes harder to maintain and less professional as a delivered industrial solution.
A useful selection rule is this:
If the IPC is not the only active device inside the cabinet, do not select the cabinet as if it were only an IPC enclosure.
PC 5368050 is the model to evaluate when cabinet depth becomes a key selection factor.
Typical dimensions:
| Parameter | Value |
|---|---|
| Width | 600 mm |
| Height | 1600 mm |
| Depth | 836 mm |
Compared with a 636 mm deep cabinet, the additional 200 mm depth is not just extra volume. In real industrial installations, that depth can decide whether the cabinet remains maintainable.
Depth is often underestimated during industrial PC cabinet selection.
Engineers may check the IPC body size and assume the cabinet is sufficient. But the installation does not end with the PC chassis. The real depth requirement includes:
This becomes critical in applications such as:
For example, a vision inspection system may begin with one IPC and two cameras. Later, the customer may add more cameras, a light controller, PoE switches, higher processing requirements, or data upload to a central server. If the cabinet depth is already tight, every upgrade becomes difficult.
Insufficient depth creates very specific problems:
These are not theoretical issues. They are common field problems when an enclosure is selected only around the current IPC size.
For this reason, PC 5368050 should be considered first when the project involves GPU computing, vision inspection, edge computing, UPS integration, or future IPC performance upgrades.
It may be more than what a simple HMI station needs. But for high-performance industrial computing, the additional cabinet depth is often the difference between a clean installation and a difficult long-term maintenance problem.
| Project Requirement | Recommended Model | Engineering Reason |
|---|---|---|
| Basic HMI operation with fixed configuration | PC 5366050 | Suitable for standardized operator stations |
| IPC plus switch, gateway, remote access, or small UPS | PC 5366450 | Better for expandable automation terminals |
| GPU IPC, vision system, edge computing, larger UPS | PC 5368050 | Deeper cabinet for cables, airflow, and service access |
A simple way to understand the three models:
The models should not be compared only as different price points. They should be compared based on cabinet depth, internal space, device layout, maintenance access, cable management, and upgrade risk.
The IPC body size is only the starting point. A cabinet also needs space for cables, plugs, airflow, and maintenance work.
If the IPC fits but the cables are forced into sharp bends, the cabinet is too small from an engineering perspective.
Mistake 2: Selecting Only for the Current BOMAutomation project BOMs change frequently. Remote maintenance, MES connection, data tracking, vision inspection, and additional network ports are common later-stage requirements.
A cabinet with no spare space makes every future upgrade more expensive.
Mistake 3: Using a General Cabinet for an Industrial PC WorkstationA standard enclosure may physically hold the PC, but an industrial PC cabinet also needs to support operator access, environmental protection, cable entry, thermal management, and serviceability.
For factory floors with dust, oil mist, vibration, heat, or machining equipment nearby, cabinet structure and accessory compatibility matter.
Mistake 4: Ignoring Cabinet DepthDepth is often the limiting factor in IPC installations. A shallow cabinet may look acceptable in drawings, but become difficult to maintain once connectors and cables are installed.
If the application includes vision, GPU IPC, UPS, or edge computing, cabinet depth should be reviewed early.
Before choosing between PC 5366050, PC 5366450, and PC 5368050, the engineering team should confirm the following points.
Industrial PC
These questions usually reveal the right model more clearly than price comparison alone.
If the application is a standard HMI operator station with a fixed configuration, PC 5366050 is usually the practical choice.
If the cabinet will support communication modules, remote maintenance, Ethernet switches, data acquisition, or future system expansion, PC 5366450 is the better direction.
If the project involves vision inspection, GPU-based IPC, edge computing, UPS integration, or high-performance industrial computing, PC 5368050 should be evaluated first because cabinet depth becomes a major engineering factor.
My view is straightforward: an industrial PC cabinet should have enough space for the system the machine will become, not only for the system shown in the first electrical drawing.
A cheaper cabinet is not always cheaper in the long run. If it forces field modifications, external boxes, difficult wiring, or downtime during upgrades, the initial saving can disappear very quickly.
For B2B automation projects, the industrial PC cabinet is not just an accessory. It is part of the system’s reliability, maintainability, and upgrade path.
1. Why should Rittal industrial PC cabinet cost not be judged only by the initial cabinet price?
Rittal industrial PC cabinet cost should include installation, wiring, cooling, expansion, maintenance, and possible downtime. If the cabinet is selected too small, adding a switch, UPS, gateway, or remote maintenance module later may require rework, extra wiring, or cabinet replacement.
2. What applications is a Rittal PC 5366050 industrial PC cabinet suitable for?
A Rittal PC 5366050 industrial PC cabinet is suitable for standard HMI workstations, single-machine operator terminals, industrial computer stations beside PLC control panels, and fixed-configuration automation equipment with limited future expansion.
3. Is a Rittal PC 5366450 industrial PC cabinet suitable for expandable automation systems?
Yes. A Rittal PC 5366450 industrial PC cabinet is suitable for expandable automation systems that may need industrial switches, VPN gateways, remote maintenance modules, MES data collection, SCADA connection, or small I/O modules in the future.
4. Is a Rittal PC 5368050 industrial PC cabinet suitable for vision inspection and edge computing applications?
Yes. A Rittal PC 5368050 industrial PC cabinet is suitable for vision inspection systems, high-performance industrial PCs, GPU industrial computers, edge computing nodes, UPS systems, and applications with many rear interfaces, cables, and cooling requirements.
5. How should I choose the protection rating and cooling solution for a Rittal industrial PC cabinet?
The protection rating of a Rittal industrial PC cabinet should be selected according to dust, oil mist, moisture, metal chips, and cleaning conditions on site. Cooling selection depends on internal heat load, ambient temperature, and operating time. Standard HMI cabinets may use filter fans, while high-performance IPC, GPU, UPS, or high-temperature environments may require heat exchangers or cabinet air conditioners.
6. Can Suwiauto help with Rittal PC 5366050, PC 5366450, and PC 5368050 cabinet selection and after-sales support?
Yes. Suwiauto can support Rittal PC 5366050, PC 5366450, and PC 5368050 cabinet selection based on IPC size, internal device list, site environment, protection rating, cooling needs, certification requirements, and future expansion plans, and can provide product information, quotation, and after-sales support.