- Programmable Controllers
- Variable Frequency Drive (VFD)
- Motion Control
- Human Machine Interface
- Industrial Computers & Monitors
- Safety Products
- Input/Output (I/O) Modules
- Network Security & Infrastructure
- Power Supplies
- Push Buttons & Signaling Devices
- Relays & Timers
- Sensors & Switches
- Signal Interface
- Lighting Control
- Condition Monitoring
- Circuit & Load Protection
- Connection Devices
- Energy Monitoring
- Motor Control
Hazardous Location Operators – Allen-Bradley
Hazardous Location Operators are Allen‑Bradley industrial control devices designed for safe operation in environments with flammable gases, vapors, dust, or fibers. These operators include push buttons, selector switches, emergency stops, pilot lights, and signaling devices specifically rated for hazardous locations (Class I, II, III, Divisions 1 & 2) in compliance with global safety standards such as UL, CSA, and ATEX.
What Are Hazardous Location Operators?
Hazardous Location Operators are control and signaling devices engineered to prevent ignition in explosive atmospheres. They allow operators to safely control machinery, start or stop processes, and monitor machine status in harsh and potentially explosive industrial environments. Allen‑Bradley hazardous location operators integrate with PLCs, PACs, motor starters, VFDs, and other control systems to ensure safe and reliable automation operation.
Allen-Bradley Hazardous Location Product Families
- 22 mm Hazardous Location Push Buttons – Compact, modular push buttons and selector switches rated for Class I, II, III, Division 1 & 2 installations.
- Emergency Stop Operators – Safety-rated push buttons for immediate machine shutdown in hazardous areas.
- Pilot Lights and Indicators – Explosion-proof lights for status and alarm signaling in hazardous environments.
- Stack Lights and Audible Signals – Multi-color signal towers and sounders certified for hazardous locations.
Applications of Hazardous Location Operators
These operators are used wherever control and signaling in potentially explosive atmospheres are required. Common applications include:
- Chemical and petrochemical plants
- Oil and gas extraction, refining, and processing facilities
- Pharmaceutical manufacturing
- Food processing areas with combustible dust
- Paint booths, powder coating lines, and other flammable material environments
- Automation machinery in hazardous production areas
Benefits of Using Hazardous Location Operators
- Safe operation in environments with explosive gases, vapors, or dust
- Compliance with global hazardous location standards (UL, CSA, ATEX)
- Integration with Allen‑Bradley PLCs, PACs, VFDs, and control systems
- Durable, rugged design to withstand harsh industrial conditions
- Provides visual and audible feedback for safe process monitoring
Allen‑Bradley Hazardous Location Operators enable safe and reliable human-machine interaction in explosive or flammable industrial environments. Their compliance with safety standards, robust design, and integration with industrial control systems make them an essential component for hazard-prone automation applications.