Overview
The Sentrol 109-6N is a Level 1 non-contact safety interlock position switch from the GuardSwitch Series. Manufactured by Edwards Signaling, this device detects the position of guards, gates, and movable safety devices without requiring direct mechanical contact. The non-contact design eliminates wear and provides consistent, reliable operation in harsh industrial environments where moisture, dust, and temperature extremes are common.
Key Features
- Non-contact operation eliminates mechanical wear and extends service life
- Normally open switch configuration for safety-critical applications
- Compact gray ABS plastic enclosure with screw terminal connections
- IP62 protection rating for use in wet and dusty environments
- Wide operating temperature range from -40°F to 180°F (-40°C to 80°C)
Technical Specifications
- Operating Voltage: 120VAC/DC
- Maximum Current: 0.2 A
- Load Rating: 25VA
- Contact Configuration: Normally Open (NO)
- Sensing Range: 1 inch nominal
- Enclosure Material: Gray ABS Plastic
- Terminals: Screw terminals
- Temperature Range: -40°F to 180°F (-40°C to 80°C)
- Protection Rating: IP62
- Response Time: 1 millisecond
Typical Applications
- Machine guard and safety gate position detection
- Interlocked access door systems
- Press brakes and punching machines
- Automated packaging and assembly equipment
- Safety-critical positioning for enclosures and protective covers
Compatibility & Replacements
Compatible With
- Edwards Signaling safety control systems and monitoring relays
- Standard industrial control panels and gate interlocks
- Guard and gate locking mechanisms requiring position feedback
- Safety circuits rated for low-voltage DC and AC control
Replaces / Drop-In Replacement For
- Compatible within the Sentrol 109 GuardSwitch Series (verify specific variant compatibility with your system integrator)
- Direct replacement for the 109-6N part number
Works With
- Edwards Signaling INT Safety Monitor Relay systems
- Standard safety-rated control circuits and PLC safety I/O modules
- Industrial machinery control systems with safety interlocking requirements
- Category 2, Category 3, and Category 4 safety-rated circuits (when installed per manufacturer specifications)



