Overview
The Allen-Bradley 442L-SFZNMN is a miniature safety laser scanner from Rockwell Automation’s SafeZone family, engineered for compact industrial automation and machine guarding applications. This unit provides a 2-meter safety detection field with switchable, configurable warning and safety zones for personnel and asset protection in motion control environments.
Key Features
- Switchable, configurable safety and warning field zones for flexible guard coverage
- Compact IP65-rated enclosure suitable for harsh industrial environments
- Onboard 7-segment display and status LEDs for real-time diagnostic information
- Infrared 905nm light source for reliable object detection
- 80 millisecond response time for quick hazard detection and equipment shutdown
- Windows-based Safety Configuration and Diagnostic (SCD) software for simplified programming
Technical Specifications
The scanner operates on 24V DC power with +20% / -30% tolerance, making it compatible with standard industrial control voltage supplies. Its area scanner type design enables detection across a wide operational range without physical contact.
Typical Applications
- Machine guarding and perimeter protection in manufacturing facilities
- Automated production line safety monitoring
- Robot work-cell hazard detection and motion control interlock
- Personnel detection for industrial motion equipment
- Assembly line entrance and exit safety zones
Compatibility & Replacements
Compatible With
- Rockwell Automation CompactLogix and ControlLogix platforms
- SafeZone configuration software (Windows-based SCD tools)
- Standard industrial 24V DC control systems
- Mounting brackets 1, 2, 3, and 4 (as specified in installation documentation)
Replaces / Drop-In Replacement For
The 442L-SFZNMN is the 2-meter safety field variant. A direct upgrade option is available as the 442L-SFZNMN3, which offers 3-meter detection range and Type 3 SIL 2 / PLd certification for higher integrity safety applications. Verify field range requirements with your system integrator before ordering a replacement unit.
Works With
- Safety Configuration and Diagnostic (SCD) Windows software for programming
- Infrared detection technology compatible with standard industrial environments
- Allen-Bradley Guardmaster safety ecosystem
- Industrial control networks using standard 24V DC topology
