Machinery Control Panels
Custom Control Panels
Custom control panels for industrial automation, machinery, HVAC, pumps, PLCs, VFDs, and power control projects. Built to your drawings, sequence, enclosure, components, and documentation needs.
Specifications
- Application
- Custom Industrial Automation
- Control Method
- PLC / Relay Based
- Protection Rating
- IP54 / IP65 Optional
- Voltage
- 220V / 380V / 480V Available
- CCommunication Protocol
- Modbus / Profinet / Ethernet/IP
- Testing
- FAT Before Shipment
- Customization
- Available
Custom Control Panels for Industrial Automation, Machinery, HVAC, Pump, and Power Control Projects
Uniregal supplies custom control panels for industrial automation systems, machinery control, HVAC control, pump control, VFD applications, PLC automation, power distribution, retrofit projects, and OEM equipment.
Each panel can be designed according to your electrical drawings, control sequence, load requirements, component preference, enclosure type, installation environment, communication needs, and project documentation standards.
A custom control panel should not be treated as a cabinet with components inside. For buyers, it is a project-specific control solution that must fit the equipment, site wiring, maintenance method, commissioning process, and long-term operation requirements.
Quick Answer
A custom control panel is an electrical control cabinet designed and built according to a specific machine, process, facility, or project requirement.
It may include circuit breakers, fuses, contactors, relays, PLCs, HMIs, VFDs, power supplies, terminals, communication modules, switches, indicators, safety devices, and field wiring connections.
The main value of a custom control panel is that it fits the real application instead of forcing the buyer to adjust the project around a standard cabinet.
What We Build
Panel Type | Typical Use |
|---|---|
Custom PLC Control Panels | Machine automation, process control, I/O logic, sequence control |
Custom VFD Control Panels | Fan, pump, conveyor, motor speed control, soft starting |
Custom Machinery Control Panels | OEM machines, packaging lines, processing equipment, production lines |
Custom HVAC Control Panels | AHU, fans, pumps, chillers, ventilation, BAS/BMS integration |
Custom Pump Control Panels | Duty/standby logic, pressure control, level control, motor protection |
Custom Power Control Panels | Power distribution, protection, switching, monitoring |
Custom Relay Control Panels | Interlock logic, auxiliary control circuits, signal transfer |
Custom Electrical Control Panels | General industrial equipment control and facility applications |
Custom Retrofit Panels | Replacement of old cabinets, obsolete components, unclear wiring |
Custom Enclosure Panels | Indoor, outdoor, IP-rated, stainless steel, wall-mounted, floor-standing |
When Do You Need a Custom Control Panel?
A custom control panel is usually needed when a standard panel cannot match the real project requirement.
This may happen when the equipment has a special control sequence, multiple motors, different voltage levels, PLC or HMI logic, VFD speed control, safety interlocks, BAS/BMS communication, field sensors, special enclosure requirements, or existing site wiring that cannot be changed easily.
In many projects, the cheapest standard panel becomes expensive later because the installer needs to modify wiring, add terminals, change components, rebuild labels, or solve commissioning problems at site.
Typical Applications
Application | What the Panel Usually Controls |
|---|---|
Industrial Automation | PLC logic, sensors, actuators, alarms, production line signals |
Machinery Control | Motors, conveyors, valves, heaters, safety interlocks, HMI operation |
HVAC Systems | Fans, pumps, dampers, valves, temperature and pressure signals |
Water and Wastewater | Pumps, dosing systems, valves, level sensors, process alarms |
Manufacturing Lines | Equipment sequencing, machine interlocks, operator stations |
Pump Stations | Motor starters, VFDs, pressure switches, level control |
Power Distribution and Control | Breakers, protection devices, switching, monitoring circuits |
Retrofit Projects | Old panel replacement, wiring cleanup, component upgrades |
OEM Equipment | Build-to-print panels for machine builders and system integrators |
Custom Control Panel Design Considerations
A good custom control panel starts with project review, not component shopping.
Before design, the panel requirement should be checked from the equipment side, the electrical side, the control side, and the maintenance side. This helps prevent a common problem: the panel looks correct in the quotation but becomes difficult to install, commission, or service after delivery.
Design Item | Why It Matters |
|---|---|
Application | Different machines, HVAC systems, pumps, and power panels require different layouts |
Power Supply | Voltage, phase, frequency, and load current affect component selection |
Load List | Motors, heaters, pumps, fans, and drives determine protection and wiring |
Control Sequence | Defines PLC logic, relays, alarms, interlocks, and operator control |
I/O List | Confirms sensors, switches, actuators, valves, feedback signals, and terminals |
Enclosure Environment | Indoor, outdoor, dusty, wet, hot, or corrosive sites need different protection |
Component Brand | Affects cost, lead time, maintenance, and local replacement availability |
Communication | Modbus, Profinet, Profibus, EtherNet/IP, BACnet, hardwired I/O |
Safety Requirement | Emergency stop, guard door, safety relay, interlock, overload protection |
Documentation | Drawings, terminal lists, BOMs, labels, and test reports support installation |
Main Components
Component | Function |
|---|---|
Main Disconnect | Isolates incoming power for maintenance |
Circuit Breakers / Fuses | Protects power and control circuits |
Contactors | Starts and stops motors or electrical loads |
Overload Relays | Protects motors from overload conditions |
PLC | Runs automation logic and I/O control |
HMI | Displays status, alarms, setpoints, and operating modes |
VFD | Controls motor speed for fans, pumps, conveyors, and process equipment |
Servo Drive | Supports precision motion control when required |
Safety Relay / Safety Controller | Handles emergency stop and safety interlock circuits |
Power Supply | Provides 24VDC or other control voltage |
Terminal Blocks | Connects field wiring clearly and safely |
Communication Module | Supports machine, SCADA, BAS/BMS, or line-level communication |
Push Buttons and Selector Switches | Supports local operation and manual control |
Indicator Lights | Shows power, running status, faults, and alarms |
Labels and Nameplates | Helps installation, troubleshooting, and maintenance |
Build-to-Print or Custom Design
Uniregal can support both build-to-print and custom design projects.
For build-to-print projects, the buyer provides approved electrical drawings, a BOM, a layout, a wiring diagram, and component requirements. We build according to the confirmed documents.
For custom design projects, the buyer provides the application, load list, control sequence, I/O list, installation environment, and preferred standards. We help organize the panel configuration before production.
Project Type | Suitable For |
|---|---|
Build-to-Print | OEMs, system integrators, repeat projects, approved drawings |
Custom Design | New projects, incomplete drawings, retrofit needs, special applications |
Retrofit Review | Old panels, discontinued components, damaged wiring, upgrade projects |
Design Optimization | Projects that need better layout, clearer labels, or easier maintenance |
Custom Control Panel Fabrication Process
Step | What Happens |
|---|---|
Requirement Review | Confirm application, voltage, load, control logic, enclosure, and documents |
Drawing Review | Check schematic, layout, I/O list, terminal list, and BOM if available |
Component Selection | Confirm brands, models, alternatives, lead time, and compliance needs |
Enclosure Preparation | Cutouts, drilling, mounting plate layout, cable entry planning |
Assembly and Wiring | Install components, wire circuits, route cables, apply labels |
Internal Inspection | Check component models, wiring, terminals, grounding, labels |
Power-On and Function Test | Test according to confirmed scope where applicable |
Documentation | Prepare drawings, BOM, terminal list, labels, and test report if required |
Packing and Delivery | Protect the panel for export shipment and site handling |
What Should Be Confirmed Before Ordering?
Information Needed | Example |
|---|---|
Application | Machinery, HVAC, pump system, water treatment, production line |
Power Supply | 220V, 380V, 400V, 415V, 480V, 600V |
Load List | Motors, pumps, fans, heaters, valves, instruments |
Control Sequence | Manual/auto mode, start/stop logic, interlocks, alarms |
I/O List | Sensors, switches, actuators, feedback signals, dry contacts |
Operator Interface | Push buttons, selector switches, HMI, local/remote operation |
Communication | Modbus, Profinet, Profibus, EtherNet/IP, BACnet, hardwired signals |
Enclosure Type | Wall-mounted, floor-standing, stainless steel, outdoor cabinet |
Protection Level | IP54, IP55, IP65, IP66, IP68, or project-specific requirement |
Component Brand | Siemens, Schneider, ABB, Omron, Mitsubishi, Allen-Bradley, Delta |
Documentation | Electrical schematic, wiring diagram, BOM, terminal list, test report |
Compliance Requirement | UL 508A-based design, IEC-based wiring, project-specific standard |
Enclosure and Panel Box Options
The enclosure should be selected according to the installation environment, cable entry, heat dissipation, component size, and maintenance access.
Enclosure Option | Typical Use |
|---|---|
Wall-Mounted Enclosure | Small and medium control panels |
Floor-Standing Cabinet | Larger panels with more components and wiring space |
Stainless Steel Enclosure | Wet, corrosive, food, or outdoor environments |
Outdoor IP-Rated Cabinet | Dust, rain, sunlight, and field installation conditions |
Multi-Door Cabinet | Complex systems with PLC, VFD, power, and terminal sections |
Custom Cutout Panel | HMI, indicators, push buttons, meters, ventilation devices |
Custom Labels, Wiring, and Terminal Design
Labels and wiring are not decoration. They directly affect installation speed and future maintenance.
A good custom control panel should have clear wire numbers, terminal labels, device labels, nameplates, and organized wiring routes. This is especially important when the panel will be installed by another contractor or maintained by a facility team that did not build the panel.
Available labeling support may include:
- Wire labels
- Terminal labels
- Device labels
- Panel nameplate
- Warning labels
- Cable entry labels
- I/O point labels
- Customer-specific label format
Testing Before Shipment
Each custom control panel can be inspected according to the confirmed drawings and project requirements.
Typical inspection items include the following:
- Component model verification
- Mechanical assembly inspection
- Wiring continuity check
- Terminal and label inspection
- Grounding check
- Control voltage check
- Power-on test when applicable
- PLC I/O check when applicable
- HMI screen check when applicable
- VFD parameter and basic function check when applicable
- Alarm and interlock check according to agreed logic
- Communication point check when applicable
- Visual inspection before packing
The purpose of testing is to reduce installation errors, missing components, wiring mistakes, unclear labels, and commissioning delays before the panel reaches the site.
Engineering Documents
Available documents may include:
- General arrangement drawing
- Electrical schematic
- Wiring diagram
- I/O list
- Terminal list
- Bill of materials
- PLC hardware configuration
- HMI screen list if required
- Nameplate and label list
- Test report
- Packing list
- Compliance-related documents if required
UL 508A Control Panel Options
For projects requiring North American industrial control panel requirements, UL 508A-based design can be discussed before production.
UL 508A is commonly associated with industrial control panel construction, including component selection, wiring, spacing, marking, and short-circuit current rating considerations. If your project requires specific labeling, SCCR review, approved components, or documentation, these details should be confirmed before quotation.
Custom Control Panels for Replacement and Retrofit Projects
Many custom control panel inquiries come from existing equipment.
The old cabinet may still run, but the wiring is unclear, components are discontinued, drawings are missing, or the panel has become difficult to maintain. In these cases, buying the same old design again may not be the best solution.
For retrofit projects, you can send existing panel photos, component lists, nameplate information, wiring drawings, and a description of how the equipment operates. We can review the available information and suggest a practical replacement or upgraded control panel configuration.
Cost Factors
The custom control panel cost depends on more than cabinet size.
The final price is affected by component brands, panel size, enclosure material, wiring complexity, PLC/HMI/VFD requirements, communication modules, testing scope, documentation, compliance requirements, and delivery urgency.
A low cabinet price may not be the lowest project cost if drawings are unclear, labels are missing, components are hard to replace, or the panel requires modification during installation.
Lead Time
Lead time depends on drawing readiness, component availability, panel complexity, quantity, enclosure type, testing requirements, and documentation scope.
For urgent replacement projects, we can first review the critical components and propose a realistic delivery schedule before full production confirmation.
FAQ
What are custom control panels?
Custom control panels are electrical control cabinets designed and built according to a specific machine, system, facility, or project requirement. They can include power protection, motor control, PLC logic, HMI operation, VFD control, field wiring, communication, safety circuits, and documentation.
What is the difference between a custom control panel and a standard control panel?
A standard control panel follows a fixed design. A custom control panel is designed around the buyer’s actual voltage, load, control sequence, component brand, enclosure environment, wiring method, and documentation requirements.
When should I choose a custom control panel?
You should choose a custom control panel when the application has special logic, multiple motors, PLC or HMI requirements, VFD control, safety interlocks, communication with other systems, outdoor installation, retrofit needs, or specific component preferences.
What information is needed to design a custom control panel?
The most useful information includes application, voltage, load list, motor list, control sequence, I/O list, enclosure requirement, installation environment, component brand preference, communication requirement, and available drawings or photos.
Can you build custom PLC control panels?
Yes. Custom PLC control panels can be built for machinery, production lines, pump systems, HVAC systems, water treatment systems, and industrial automation projects.
Can you build custom VFD control panels?
Yes. Custom VFD control panels can be built for fans, pumps, conveyors, mixers, and other motor-driven equipment that requires speed control, soft starting, or process adjustment.
Can you build custom HVAC control panels?
Yes. Custom HVAC control panels can be built for AHUs, fans, pumps, chillers, cooling towers, ventilation systems, and BAS/BMS integration projects.
Can you build custom power control panels?
Yes. Custom power control panels can be designed for power distribution, switching, protection, monitoring, and equipment control according to the project requirement.
Can you build panels from my drawings?
Yes. We can support build-to-print projects if you provide approved electrical drawings, BOM, layout, wiring diagram, and component requirements.
Can you help if I do not have complete drawings?
Yes. You can send application details, old panel photos, component lists, nameplate information, and a description of the equipment operation. We can review the information and help organize the control panel requirement.
Do you provide custom control panel wiring diagrams?
Yes. Wiring diagrams can be provided according to the confirmed order scope. For custom projects, drawings should be reviewed before production to confirm wiring, terminals, I/O, power circuits, and field connections.
Can you provide custom labels and nameplates?
Yes. Wire labels, terminal labels, device labels, nameplates, warning labels, and customer-specific label formats can be prepared according to the confirmed project requirement.
What components can be used?
Components can be selected according to the buyer’s preference, local maintenance needs, budget, and availability. Common brands include Siemens, Schneider, ABB, Omron, Mitsubishi, Allen-Bradley, Delta, and equivalent alternatives.
Can the panel be designed for UL 508A requirements?
An UL 508A-based design can be discussed before production. The final scope depends on component selection, SCCR review, labeling, documentation, and whether official certification or marking is required.
How do you test custom control panels before shipment?
Testing may include component verification, wiring continuity check, terminal inspection, grounding check, control voltage check, power-on test, PLC I/O check, HMI check, VFD basic function check, alarm check, communication point check, and visual inspection before packing.
Can you replace an old control panel?
Yes. For replacement projects, please send old panel photos, wiring drawings if available, component models, voltage information, and a description of how the equipment operates. We can help review whether a replacement panel or upgraded design is more practical.
Request a Quotation
Send us your application, voltage, load list, control sequence, I/O list, enclosure requirement, component preference, and available drawings or photos.
Our team will review the custom control panel configuration before the quotation, so you receive a practical proposal based on your project requirements, not only a cabinet price.
Start Your Cabinet Selection
Looking for reliable industrial electrical enclosures or control cabinets for your automation or power distribution project?
Contact UniRegal Automation today.
- Email: info@uniregal.com
- Website: https://www.uniregal.com