Overview
The Allen-Bradley 800MR-QT24GS is a 22.5mm round pilot light unit with integrated push-to-test functionality and green incandescent indicator. Rated for 24V AC/DC full voltage operation, this control component has been a standard choice for industrial panel mounting, machinery status indication, and diagnostic testing across manufacturing, process control, and electrical equipment applications. Though discontinued since September 2011, the 800MR-QT24GS remains a critical legacy component for system integrators maintaining older control systems.
Key Features
- Push-to-test functionality enables field verification of lamp and circuit integrity without removing wiring
- Green color-coded lens for clear status indication and intuitive operator feedback
- 85-lamp rated design for reliable long-term incandescent illumination
- Small screw terminal connection simplifies panel wiring
- Full voltage 24V AC/DC rating ensures broad compatibility with standard industrial control voltage supplies
- Compact 22.5mm footprint fits standard industrial pushbutton and pilot light mounting patterns
Technical Specifications
- Voltage Rating: 24V AC/DC full voltage
- Lamp Type: Incandescent, 85-lamp
- Size: 22.5mm round
- Functional Type: Push-to-test pilot light
- Lens Color: Green
- Terminal Style: Small screw
- Weight: 0.10 kg (0.22 lb)
- Series: 800MR (22mm)
- Status: Discontinued (September 2011) by Rockwell Automation
Typical Applications
- Legacy machinery and equipment status indication and diagnostics
- Industrial control panel indicator light replacement
- Manufacturing and process automation status monitoring
- Electrical equipment condition verification and troubleshooting
- Field-replaceable diagnostic lamps in motion control and power distribution systems
Compatibility & Replacements
Compatible With
- Standard 22.5mm pushbutton and pilot light mounting holes
- 24V AC/DC industrial control panel supplies
- Legacy Allen-Bradley motor control centers and disconnect switches
- Siemens, GE, Square D, and other multi-vendor panel wiring standards requiring green status indication
Replaces / Drop-In Replacement For
- Other 800MR series 24V green pilot lights with small screw terminals
- Equipment originally configured with 22.5mm round incandescent indicator lamps
- Note: Rockwell Automation declared no planned replacement product upon discontinuation. Verify exact terminal configuration and mounting pattern before ordering.
Works With
- Manual pushbutton stations and industrial pendant control
- AC/DC relay circuits and contactor control circuits
- Standard industrial wiring and terminal lugs
- 24V power supplies compliant with IEC and NEMA standards




















