Panasonic Industrial Automation SF4D-H20 Safety Light Curtains are compact, robust, and a Type 4 PLe SIL3 safety light curtain. These curtains offer high performance, high reliability, and high rigidity. The SF4D-H20 light curtains are equipped with a new high-power optical system offering stable operation even for long-distance setups. These curtains comply with IP67 and IP65 (IEC) and NEMA Type 13 (NEMA 250). The SF4D-H20 light curtains feature an OFF and ON response time of 60ms or less.