557751-1

TE Connectivity Raychem Cable Protection's 557751-1 redefines reliability in Keystone - Accessories for railway signaling systems. Developed to meet EN 50155 standards, this robust solution ensures uninterrupted operation in vibration-intensive rail environments.The Backup Plate, Herman Miller design incorporates spring-loaded secondary locking for vibration-proof connections. Testing has verified performance stability under 5-200Hz random vibration profiles exceeding 1Grms acceleration.The Gray coding complies with railway industry standards for system voltage identification. The fade-resistant pigments maintain visibility throughout the vehicle's 30-year service life.Engineered to precise 60.96mm H x 119.38mm W specifications, the compact design fits confined equipment cases while meeting EN 45545-2 fire safety clearance requirements. The form factor optimizes use in modern train control systems.The railway-approved Carbon Steel compound withstands temperature extremes from -40 C to +105 C while resisting oils and cleaning agents. The self-extinguishing formulation prevents flame propagation in enclosed spaces.Certified for integration with Herman Miller Faceplates, this component simplifies rolling stock upgrades. The tool-less termination system reduces depot maintenance time by 45% compared to screw-terminal alternatives.