The ESPE EFB Series is an explosion‑proof safety light curtain engineered to operate safely in hazardous explosive atmospheres, including explosive gas environments (Zone 1 and Zone 2) and combustible dust environments (Zone 20, Zone 21, Zone 22). It is suitable for areas classified under IIA, IIB, IIC gas groups with temperature classes from T1 to T6, making it ideal for facilities like petrochemical plants, offshore drilling platforms, refineries, metallurgy, pharmaceuticals, food processing, and other industries where explosion risks exist. The rugged design ensures continuous safety presence detection in environments with volatile gases or dust.
The series integrates dual independent safety output loops with self‑inspection, robust anti‑electromagnetic interference performance, and wire synchronization technology to ensure detection reliability even amid industrial electrical noise. Its through‑beam optical sensing supports long distances (up to about 30 m), and the heavy‑duty external enclosure — typically made of coated steel or stainless steel — is built to withstand harsh conditions and maintain explosion‑proof integrity while providing personnel protection interfaces with safety control systems.
