Overview
The Norgren CS7-04 / 720-000-004 is a magnetically operated reed switch sensor widely used in industrial automation, pneumatic motion control, and machinery positioning applications. This non-contact sensing switch is housed with a magnet-triggered mechanism, making it ideal for detecting piston or actuator position on NFPA-standard pneumatic cylinders (2 to 6-inch bores). The integrated design with pre-installed 12-inch cable lead enables quick installation and commissioning in production environments.
Key Features
- Magnetically operated reed switch design—non-contact sensing for reliable, wear-free operation
- Operating voltage: 5–240 VAC/VDC; compatible with both AC and DC control circuits
- 1 amp maximum current rating with 30 VA capacity for standard industrial loads
- 12-inch integrated cable lead for direct connection to PLC, relay, or control module inputs
- LED indicator light integrated for installation troubleshooting and status verification
- Adjustable mounting brackets allow flexible positioning along cylinder rod travel
Technical Specifications
- Supply Voltage: 5–240 VAC/VDC
- Maximum Current: 1 amp
- Power Rating: 30 VA
- Cable Length: 12 inches
- Switch Type: Reed (magnetically operated, normally open)
- Compatible Cylinder Bore Range: 2 to 6 inches (NFPA cylinders)
- Mounting: Adjustable bracket (included)
- Indicator: LED light for troubleshooting
- Contact Configuration: 1 Form A (normally open)
Typical Applications
- Pneumatic cylinder position sensing (full extension, full retraction, or intermediate strokes)
- Automated material handling and assembly systems
- Machinery sequence control and interlocking
- Industrial bottling, packaging, and production line automation
- Actuator feedback and motion verification in factory automation
- Safety gate and emergency stop position monitoring
Compatibility & Replacements
Compatible With
- NFPA-standard pneumatic cylinders (2 to 6-inch bore)
- PLC input modules (24 VDC, 48 VDC, 120 VAC, 240 VAC input cards)
- Relay modules and discrete input terminals
- Industrial control systems and motion control platforms
- Allen-Bradley CompactLogix, ControlLogix, and SLC-500 input modules
- Siemens S7-1200, S7-1500 and legacy S7-300/400 discrete inputs
- Mitsubishi FX and Q-series PLC input modules
- Omron CP1E, CP1L, and CJ-series discrete input cards
Replaces / Drop-In Replacement For
- Norgren 720-000-004 (OEM designation)
- IMI Norgren legacy CS7-04 variants (standard configuration)
- Other magnetically operated reed switches rated 5-240V, 1A, 30VA for equivalent NFPA cylinder applications
Works With
- Discrete input modules (24 VDC, 48 VDC, 120 VAC, 240 VAC)
- Standard relay logic and hardwired control circuits
- Studio 5000, TIA Portal, GX Works, and Sysmac Studio programming environments
- EtherNet/IP, PROFINET, and standard industrial Ethernet networks (via gateway modules)
- Pneumatic schematic symbols and industrial automation diagrams
