Overview
The Allen-Bradley 800T-B9A is a professional-grade 30.5 mm push button operator featuring an extended head design with yellow color for clear visual identification. Part of the industry-proven Bulletin 800T family, this 800T-B9A unit is built for momentary contact operation in Type 4/13 (watertight/oiltight) enclosures. It operates at full load without illumination and integrates seamlessly into PLC-based control systems and standalone starter stations.
Key Features
- Extended head design — Prominent yellow operator for easy identification and gloved-hand operation
- Momentary contact — Returns to neutral position when released; suitable for standard start/stop circuits
- Type 4/13 rated — Watertight and oiltight for indoor industrial environments
- 30.5 mm mounting hole — Standard footprint compatible with 800 series modular stations and enclosures
- Non-illuminated — Metal construction with no lamp or lens cap; direct tactile feedback for operator control
- Proven durability — Direct drive mechanism with pentafurcated contacts for reliable low-voltage switching
Technical Specifications
- Mounting Hole: 30.5 mm
- Operator Type: Extended Head
- Color: Yellow
- Contact Configuration: 1 NO / 1 NC standard
- Action: Momentary
- Enclosure Rating: Type 4/13 (Watertight/Oiltight)
- Series: Bulletin 800T
- Operating Temperature: −40…+131 °F (−40…+55 °C)
- Storage Temperature: −40…+185 °F (−40…+85 °C)
- Contact Material: Pentafurcated precious metal
- Enclosure Compatibility: 800 series modular stations and control panels
- Certifications: UL Listed (File No. E14840), CSA Certified (File No. LR1234)
Typical Applications
- Industrial start/stop pushbutton stations
- Machine tool control panels
- Process automation and motor starters
- Water/wastewater treatment systems
- Food processing and packaging equipment
- Manufacturing conveyor and assembly line control
- Emergency stop circuits (paired with contact blocks)
Compatibility & Replacements
Compatible With
- All Bulletin 800T/800H 30.5 mm modular enclosures and stations
- Allen-Bradley contact blocks (standard shallow and self-monitoring contact blocks)
- Rockwell Automation CompactLogix, ControlLogix, and PLC systems via discrete inputs
- Hardwired start/stop control circuits and motor starter coils
- Type 4/13 industrial control panels and NEMA-rated cabinets
Replaces / Drop-In Replacement For
- Verify compatibility with your system integrator before ordering. The 800T-B9A extended head design may not directly interchange with flush head (800T-A9B) or mushroom head operators without panel modification.
Works With
- Rockwell Automation Studio 5000 and RSLogix platforms (via discrete input wiring)
- Standard relay logic and hardwired control circuits
- Contact blocks: 800T-XA (standard), 800TC-XD4S (self-monitoring)
- All 800 series accessory kits and operator boots














