A-B 442L-SFZNMZ GuardShield Safety Light Curtain

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                      • Product Overview

                        The Allen-Bradley 442L-SFZNMZ is a multizone safety laser scanner from the Guardmaster SafeZone series. It monitors hazardous areas around industrial machinery and automatically detects people or objects entering configured safety zones. It supports multiple configurable warning and protective fields, making it suitable for both stationary machines and mobile equipment such as automated guided vehicles (AGVs).

                         

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                        Technical Specifications

                        Parameter	Specification
                        Brand	Allen-Bradley (A-B)
                        Model	442L-SFZNMZ
                        Product Series	Guardmaster SafeZone
                        Product Type	Multizone Safety Laser Scanner
                        Scanning Range	Up to 5 m
                        Scanning Angle	190°
                        Angular Resolution	0.5°
                        Configurable Zones	Up to 4
                        Detection Resolution	30, 40, 50, 70, 150 mm
                        Supply Voltage	24 V DC
                        Operating Voltage Range	16.8–28.8 V DC
                        Safety Outputs	2 PNP OSSD outputs
                        Maximum Output Current	500 mA per output
                        Response Time	Approx. 120 ms
                        Safety Rating	SIL 2, Category 3, PL d
                        Protection Rating	IP65
                        Housing Material	Die-cast aluminum
                        Mounting	Industrial machine or equipment mounting
                        Weight	Approx. 3.3 kg

                         

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                        Key Features

                        • Multizone safety monitoring for industrial work areas.

                        • Configurable protective and warning fields.

                        • 190° scanning angle for wide-area detection.

                        • Integrated two-channel safety outputs.

                        • External Device Monitoring (EDM) support.

                        • Built-in diagnostic display for status monitoring.

                        • Suitable for stationary and mobile applications.

                        • Robust IP65-rated housing.

                        Typical Applications

                        • Industrial machinery safety protection

                        • Automated guided vehicles (AGVs)

                        • Robotic work cells

                        • Conveyor and material-handling systems

                        • Automated manufacturing facilities

                        • Hazardous-area access monitoring

                        Installation Notes

                        • Verify the 24 V DC power supply before installation.

                        • Configure protective and warning fields using compatible SafeZone software.

                        • Maintain the required safety distance according to machine stopping time.

                        • Use compatible cables, I/O modules, and mounting accessories.

                        • Ensure the scanning window remains clean and unobstructed.

                        • Perform safety-function testing after installation.

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