Safety Relays Safety Relays Sentry Safety RelaysSentry safety relays are available for standard safety circuits, two-hand control, input and output expansion, timer-based circuits, and programmable universal safety relays Publications Application and TechnicalBrochuresCatalogs and Buyers GuidesCertificates/Declarations of ConformityConnection DiagramCross ReferenceDrawings-Outline and DimensionalInstallation and Instruction Other Safety Relays Safety Relays