The Telemecanique XUSL4E14F031NWH is a Safety Light Curtain Type 4, classified under the Light Curtain sub-category. Type 4 per IEC 61496-1/2 means it provides the highest level of safety integrity for point-of-operation guarding — capable of detecting a finger-sized object entering the protected zone and initiating a stop signal to the safety controller. This is the part you spec when the risk assessment demands SIL 3 / PL e performance, not a lower-tier barrier.
As a Type 4 safety light curtain, this unit is designed for guarding hazardous machine zones where a breach must be detected reliably and quickly. The 14 mm resolution (implied by the model code pattern XUSL4E14) means it catches fingers reaching into the hazard zone — finger-protection class per IEC 61496-1. The 031NWH suffix indicates a specific beam length and housing variant; verify the protected height and range against your machine's opening dimensions before ordering.
The XUSL4E14F031NWH carries the Telemecanique brand and is listed with UPC 389119619755. The Type 4 designation inherently meets IEC 61496-1/2 and typically carries UL/cUL listing for North American installations — confirm the specific UL file number for your jurisdiction.