Overview
The Allen-Bradley 808-M1 is a heavy-duty electromechanical speed switch designed for industrial control applications requiring reliable speed sensing and contact switching. This device features an electromechanical design, high-speed capability, base mount, normally open contacts, Type 1/4/13 enclosure rating, 50-1000 RPM contact adjustment range, and 2000 RPM maximum shaft speed. The 808-M1 is manufactured to NEMA and international standards, making it suitable for factory floor deployment in demanding environments.
Key Features
- Double-shaft seal with long-life precision bearings for reliable operation and extended service life
- Speed sensing range of 50 to 1000 RPM with 2000 RPM maximum shaft speed
- High-speed electromechanical design for rapid contact actuation
- Base mount configuration with NEMA 1, 4, and 13 enclosure compatibility
- Normally open (NO) contact configuration for simple control circuit integration
- Provides electrical contact signal at a determined speed for plugging, anti-plugging, speed sensing, and direction of rotation applications
Technical Specifications
The 808-M1 delivers robust performance across critical control parameters:
Typical Applications
The Allen-Bradley 808-M1 is specified for:
- Motor speed monitoring and overspeed protection
- Plugging control circuits for motor stopping
- Anti-plugging interlocks
- Speed-based automation triggers on production machinery
- Direction-of-rotation detection
- Equipment running status verification
Compatibility & Replacements
Compatible With
- Allen-Bradley control systems and motor starters
- Standard industrial PLC inputs and relay circuits
- Motor-driven equipment up to 2000 RPM shaft speed
- NEMA-rated industrial control enclosures (Type 1, 4, 13)
- Standard 24 VDC and AC control circuits
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering to confirm this unit is the correct replacement for legacy 808-series speed switches in your application.
Works With
- Allen-Bradley motor starters and control relays
- Standard industrial wiring practices and NEMA enclosures
- Electromechanical relay logic and modern PLC inputs
- Direct-wired control circuits without additional interface modules
