Enclosure and thermal design
Indoor, outdoor, washdown and dusty locations require different enclosure ratings, ventilation, filters or air-conditioning provisions.
Packaged motor control
VFD Control Panels Built Around the Application
Package the drive, isolation, protection and operator controls into one coordinated enclosure. We support standard wall-mounted VFD panels, bypass arrangements and project-specific control panels for pumps, fans, conveyors and process equipment.
- Standard, bypass and custom configurations
- Drive and motor data checked together
- Documentation prepared for project supply
Selection foundation
A panel is an engineered assembly, not just a drive in a box.
The enclosure must suit the environment while the disconnect, fusing, contactors, cooling and control circuit suit the drive and load. A bypass panel also needs a clear operating sequence and correctly coordinated motor protection. Project information such as fault level, cable entry, control voltage, BMS interface and local operator requirements should be settled before the bill of materials is released.
Isolation and protection
Disconnect type, short-circuit rating, fuses or breakers, overload protection and surge requirements must match the site standard.
Bypass operating philosophy
Hand-off-auto, drive-off-bypass, interlocks and automatic transfer logic should be defined around process continuity and safe operation.
Controls and documentation
Confirm pushbuttons, indication, PLC/BMS signals, communications, schematics, terminal plans and required test records.
Product range
Product types within this category
These groups are a practical way to narrow the requirement. Final model selection still depends on the electrical, mechanical and installation data shown on this page.
Standard non-bypass VFD panels
A coordinated enclosure for the drive, isolation, protection, terminals and local operator controls without across-the-line bypass.
Typical fit: Machines and processes that require variable-speed operation
Three-contactor bypass panels
Drive and bypass contactors with electrical and mechanical interlocking, selected with a clear manual or automatic operating sequence.
Typical fit: Selected HVAC, fan and pump continuity requirements
Outdoor and washdown panels
Enclosures, cooling and components configured for moisture, dust, solar load, corrosion or frequent cleaning exposure.
Typical fit: Utilities, water treatment and exposed process areas
Pump-control panels
Single- or multi-pump arrangements using pressure or level feedback, alternation, sleep logic and defined local override functions.
Typical fit: Booster, transfer and wastewater pumping systems
Multi-drive control panels
Several drives and common controls organized into a single assembly with coordinated distribution, cooling and communication.
Typical fit: Production lines and grouped motor systems
Retrofit replacement panels
A new assembly designed around existing cables, footprint, field devices and a planned shutdown window.
Typical fit: Obsolete panels and controls modernization
Quick selection
Describe the panel in three selections
Use what you know now; the WhatsApp message keeps the page reference and leaves space for the missing project detail.
Typical specification scope
What we can match
- Configurations
- Standard, bypass, multi-drive and custom
- Enclosures
- Indoor, outdoor and application-specific ratings
- Operator interface
- Keypad, switches, pilot lights or HMI
- Control integration
- Hardwired I/O, PLC, BMS and industrial networks
- Common options
- Reactors, filters, braking, cooling and surge protection
- Documents
- Drawings and test documents defined per quotation
Common applications
Where selection changes with the load
Water and wastewater
Pump panels can combine level or pressure control, duty rotation, dry-run protection and local manual operation.
HVAC and building services
Fan and pump panels may include bypass, smoke-control interfaces, fire-alarm interlocks and BMS communication.
Conveyors and production lines
Local controls, safety interlocks, braking and upstream/downstream permissives are coordinated in the panel design.
Retrofit replacements
Existing cable locations, footprint, control signals and site shutdown limits are reviewed before a replacement assembly is proposed.
Decision guide
Choose the right product path before comparing models
Drive-only panel
- Choose when
- Variable speed is essential and the process can stop if the drive is isolated for service.
- Verify before ordering
- Isolation, protection, cooling, local controls and remote interlocks.
Manual bypass panel
- Choose when
- Authorized operators may intentionally transfer a suitable motor to line power.
- Verify before ordering
- Interlocking, motor protection, transfer procedure and full-speed process safety.
Automatic bypass panel
- Choose when
- The approved sequence requires transfer after a defined drive fault or control condition.
- Verify before ordering
- Failure modes, restart behavior, permissives, alarm logic and owner approval.
Custom PLC/HMI panel
- Choose when
- The project needs sequencing, multiple devices, recipes, data logging or a tailored operator interface.
- Verify before ordering
- Control narrative, I/O list, software scope, network and acceptance testing.
From requirement to quotation
A short path to a verifiable product match
Define the operating requirement
Share the motor schedule, supply, application, enclosure location and required local or remote controls.
Review the panel scope
The drive, protection, bypass, accessories, enclosure and documentation requirements are aligned in one scope.
Confirm drawings and supply
Commercial terms, approval documents, build basis, testing and shipment are confirmed before production.
Frequently asked questions
Practical answers before you request a quote
What is included in a standard VFD panel?
A typical scope can include the VFD, enclosure, main disconnect, branch protection, operator controls, terminals and cooling provisions. Exact inclusions vary, so the quotation and drawings should define every component and interface.
When is a VFD bypass panel useful?
Bypass is commonly considered when the process must continue at full speed if the drive is unavailable, especially in selected HVAC and water applications. The motor, protection and process must be suitable for direct-on-line operation.
Can a panel be built around a specified VFD brand?
Yes. Provide the approved brand or model, project specification and required alternatives. Availability and regional model differences are checked before the panel design is finalized.
Which drawings are needed for a custom VFD panel?
Useful inputs include a single-line diagram, control narrative, I/O list, motor schedule, site layout and cable-entry requirements. If these are not available, the scope can begin from a marked-up requirement list.