Overview
The Pepperl+Fuchs 50FR2-3-1 magnetic field sensor is a magnetically actuated reed switch designed for dependable presence and position detection in industrial control systems. Part number 450055, this sensor combines proven reed switch technology with hermetically sealed contacts for long-term reliability in harsh environments. The 50FR2-3-1 works with both AC and DC voltage, making it versatile across variable voltage platforms in automation and fluid power applications.
Key Features
- Magnetically actuated reed switch — Triggered by proximity to matching permanent magnet
- Hermetically sealed contacts — Protected against moisture and contaminants for extended service life
- AC/DC compatibility — Operates across both AC and DC electrical systems without modification
- Included permanent magnet — Matching magnet supplied with sensor for immediate commissioning
- Compact, non-flush design — 11.4 mm sensing range accommodates standard industrial mounting configurations
Technical Specifications
The Pepperl+Fuchs 50FR2-3-1 is a 2-wire reed contact sensor with normally open (NO) switching configuration. It features a cable with PVDF insulation approximately 0.914 m in length. The sensor operates reliably in industrial temperature ranges and is certified for use in standard automation environments.
Typical Applications
- Hydraulic and pneumatic cylinder position sensing
- Proximity detection on moving machinery
- Door and access control interlocks
- Fluid level and presence detection
- General object position monitoring in production lines
Compatibility & Replacements
Compatible With
- AC control circuits (standard industrial voltage)
- DC control circuits (standard industrial voltage)
- PLC analog and discrete input modules
- Relay logic and hardwired control systems
- Industrial safety circuit applications
Replaces / Drop-In Replacement For
- Previous generations of Pepperl+Fuchs magnetic reed switch sensors
- Generic 2-wire reed switch sensors with identical electrical ratings
Works With
- 2-wire AC/DC control voltage (verify rating before installation)
- Normally open (NO) contact closure logic
- Standard industrial relay modules and I/O cards
- All major PLC platforms supporting discrete 24VDC inputs
