Sick L40S-11MA1A Safety Light Curtain Modules

Sick L40S-11MA1A Safety Light Curtain Sender is a 1-beam device in the L4000 safety system that provides a focused protective field at machine access points. Designed for use with a compatible L40S/L4000 receiver, it forms part of a guarded area that triggers safety control when the beam is interrupted, helping to stop hazardous machinery and protect operators. The unit features a rugged M12 4-pin straight (male) connector for quick, reliable electrical coupling and is intended for single-beam configurations within standard safety circuits. As a sender in the L4000 family, it complements corresponding receivers to deliver OSSD-type safety signaling through the safety control system, enabling clear, verifiable shutoff when access is attempted into the protected zone. Typical applications include safeguarding manual loading/unloading stations, robot work cells, press brakes, conveyors, and other automated lines where a single beam provides a compact, cost-efficient protective solution. The L40S-11MA1A is designed to integrate with Sick’s safety ecosystem, ensuring consistent diagnostics and compatibility with standard safety controllers and interlock workflows. With its 1-beam configuration and standardized M12 connection, it supports straightforward installation in tight spaces while delivering the precise, auditable protection required by industrial safeguarding standards. This description reflects the exact model and its role within the L4000 modular light curtain family, detailing the essential function, interface, and typical use cases for informed selection in machine guarding campaigns.