Overview
The Norgren CS7-04/720-000-004 is a magnetically operated reed switch sensor engineered for position sensing applications in pneumatic systems. The non-contact sensing system uses a magnet in the piston and a sensing switch clamped on the cylinder tie rod to indicate piston position and control or initiate sequence functions. This reed switch operates at 5–240V AC/DC with 1 amp maximum current, 30 VA capacity, and includes a 12-inch cable lead.
Key Features
- Non-contact Position Sensing: Magnet-based system mounted on cylinder tie rod eliminates mechanical contact wear
- Wide Voltage Range: Rated for 5–240V AC/DC operation
- LED Indicator: Built-in LED indicator light facilitates installation and troubleshooting
- Pre-mounted Cable: Supplied with 12-inch cable lead for quick connection
- Adjustable Mounting: Adjustable mounting brackets allow switches to be securely positioned anywhere along the range of piston travel
- Reed Switch Type: Traditional reed contact design for reliable electrical switching
Technical Specifications
Detailed electrical and operational parameters for system integration and troubleshooting:
- Operating Voltage: 5–240V AC/DC
- Maximum Current: 1 ampere
- Switching Power: 30 VA capacity
- Cylinder Bore Range: 2–6 inches (standard NFPA cylinders)
- Contact Type: Reed (SPST normally open)
- Cable Length: 12 inches
- Weight: 0.27 lbs
- Manufacturer Status: Discontinued by manufacturer
Typical Applications
The CS7-04 is widely deployed in:
- Pneumatic cylinder position feedback in factory automation
- Limit switch applications for press and stamping equipment
- Sequence control and interlocking in assembly lines
- Piston stroke end-of-travel detection
- Industrial control systems requiring non-contact sensing
Compatibility & Replacements
Compatible With
- NFPA 2-6 inch bore pneumatic cylinders
- Standard 24V DC and 120V AC control circuits
- PLC inputs and industrial control systems
- Relay modules and electromechanical controllers
- Tie-rod mounted cylinder configurations
Replaces / Drop-In Replacement For
- Norgren 720-000-004 (alternative part number designation)
- Original equipment on Norgren CS7 series pneumatic cylinders
Works With
- Norgren NFPA pneumatic cylinders (2–6″ bores)
- Standard industrial PLC input modules (24V or 120V logic)
- Relay and contactor-based control systems
- Safety-rated control systems (when properly configured)
- Legacy and modern automation platforms
