Overview
The Westinghouse OT3PF is a compact illuminated pushbutton designed for push-to-test applications in industrial electrical control systems. Rated for 120/110VAC 60/50Hz operation, the OT3PF provides visual indication in control panels and equipment where testing capability is required. This 30mm pilot light device features momentary contact action and is compatible with standard electrical pushbutton assemblies and control circuits.
Key Features
- 30mm form factor — fits standard industrial pushbutton cutouts
- Illuminated design — visual feedback during push-to-test operation
- Momentary NO/NC contacts — dual-action contact configuration
- Rated for 120/110VAC 60/50Hz — dual voltage and frequency support
- Tested and fully functional — ready for immediate installation
- Industry-standard construction — compatible with Westinghouse control panels
Technical Specifications
| Voltage Rating | 120/110VAC |
| Frequency | 60/50Hz |
| Part Number | OT3PF |
| Manufacturer | Westinghouse |
| Contact Type | Momentary NO/NC |
| Size | 30mm Pushbutton |
| Function | Illuminated Pilot Light / Push-to-Test |
| Status | Discontinued by Manufacturer |
Typical Applications
- Industrial control panel test circuits
- Equipment startup verification and diagnostics
- Motor control centers (MCC) testing
- Process automation and machine control systems
- Facility maintenance and troubleshooting
- Legacy Westinghouse electrical system upgrades
Compatibility & Replacements
Compatible With
- Westinghouse electrical control panels
- 30mm standard pushbutton cutouts and chassis
- Industrial control circuits rated 120/110VAC 60/50Hz
- Momentary contact control circuits and relays
Replaces / Drop-In Replacement For
- Westinghouse OT3PF (exact part number match)
- Westinghouse OT series illuminated pilot lights (verify compatibility)
- Verify compatibility with your system integrator before ordering
Works With
- Industrial relay logic and control circuits
- PLC input modules (via control panel integration)
- Standard momentary contact-based automation systems
- Legacy industrial electrical installations
