Pilz 541181 PSEN cs4.1 Key gy1. Pilz 541181 (PSEN cs4.1 Key gy1) is an exact PSENcode machine-safety catalogue item verified against its dedicated Pilz E-Shop detail page. Pilz's model-specific description is: Transponder key for PSEN cs4.1p, grey "1" marking, material: plastic, accessories: key adapter (532113). The detail-page technical table records Sensor principle: Transponder; Coding level to ISO 14119: hoch; Protection type, housing: IP68; Ambient temperature: -10; Height dimension: 15.1; Width dimension: 42; Depth dimension: 8. This order code is tied to GTIN 4046548096668 and the official technical asset titled 'Operat. Man. PSEN cs3.1p Key'. Similar Pilz variants can differ in contact arrangement, coding, connector, cable, actuator package, sensing distance and enclosure protection, so use the exact product ID and GTIN in RFQs. Availability, price and lead time require a current supplier quotation.