Allen-Bradley 442L-SFZNSZ-A Safety Laser Scanner

Allen-Bradley 442L-SFZNSZ SafeZone Singlezone Safety Laser Scanner is a compact guardzone system that combines a scan head and I/O module to deliver single-zone protection. It provides a 49 m distance measuring range with a 2.5 mrad beam divergence and an even scan field within ±70 mm at 5 m, enabling reliable detection of personnel or objects in the safeguarded area. The unit offers galvanic decoupling and a Class 1 laser protection rating, with two protected semiconductor outputs and an operating current up to 2.3 A at up to 562 µW output power. It supports 2–16 samples (configurable via SCD) and carries a PFD of 4.46E-3, reflecting its safety performance. Physically, the center of the scan plane sits 63 mm from the bottom of the housing, while the mirror axis sits 93 mm from the rear, producing a compact footprint suitable for mounting behind guards or fixtures. The permissible cable resistance is 2.5 Ω and the system specifies a maximum load of 2.2 µF at 50 Ω and a maximum inductance of 2.2 H, making it suitable for integration with standard safety controllers. Catalog number 442L-SFZNSZ denotes the SafeZone singlezone scanner, which requires a compatible I/O module to interface with your safety PLC or controller and provides a dedicated, single-zone laser scanning solution for industrial safeguarding.