VFD Division 1 NEMA 4X panels provide a fully enclosed, flame‑proof solution for operating motors in hazardous locations. These packages are designed for areas where ignitable gases or vapors may be present and where equipment must be fully contained within certified enclosures. Control Innovations supplies Division 1 VFD panels suitable for portable skids, remote installations, and other classified‑area applications.
A VFD Division 1 NEMA 4X panel provides variable‑speed motor control in hazardous locations where flame‑proof construction is required. The panel houses the drive and all supporting components inside certified enclosures to ensure safe operation in Division 1 areas.
Key Features
Control Innovations Division 1 VFD panels typically include:
- Flame‑proof enclosures suitable for Class I, Division 1 locations
- Integrated VFDs up to 5 HP at 480 V or 575 V
- Smaller‑horsepower options available for lower voltages
- Outsourced Division 1 VFD packages up to 60 HP with rated filter/fan assemblies
- Explosion‑proof keypad or door‑mounted operators for start/stop, speed control, and status indication
- NEMA 4X construction for corrosion resistance and outdoor durability
This creates a rugged, field‑ready control solution for hazardous‑area motor loads.
Panel Construction & Components
A typical Division 1 VFD panel includes:
- Flame‑proof enclosure with certified fittings
- VFD mounted inside the enclosure with proper spacing
- Optional explosion‑proof keypad for local adjustments
- Door‑mounted operators for common functions
- Run and fault indication lights
- Filter/fan assemblies rated for Division 1 (for larger outsourced packages)
This ensures safe, reliable operation in classified environments.
Applications
Division 1 VFD panels are commonly used on:
- Portable skids
- Oilfield equipment
- Remote wellsite installations
- Classified‑area pump and motor systems
- Locations where the control panel must be installed away from the equipment it operates
They provide a dependable solution for variable‑speed control in hazardous locations.
Additional Solutions
Control Innovations offers multiple options for drives in hazardous areas, including:
- Division 2 VFD panels
- Purged and pressurized enclosures
- Remote‑mounted operator stations
- Custom hazardous‑area control packages
Panels can be tailored to match site requirements and operational needs.

