Product pictures Product Overview: SCHMERSAL ML 441-11Y-T-M20 Parameter Specification Manufacturer SCHMERSAL Group Part Number ML 441-11Y-T-M20 Product Series ML 441 Device Type Mechanical Position / Limit Switch Application & Fault Scenarios Typical Uses: Machine guarding interlocks, conveyor end-travel detection, crane limit positioning. Common Field Issues: Intermittent NC signal → inspect roller bearing wear and lever pivot bushing Water ingress after washdown → verify