Switching relay module D5294S

DCsafetyDIN rail mounted

5 A SIL 3 NO CONTACT RELAY OUT MODULE FOR NE OR F&G/ND LOAD WITH OPEN/SHORT CIRCUIT DIAGNOSTIC DESCRIPTION The single channel 4 A Relay Output, D5294S is a relay module suitable for the switching of safety related circuits, up to SIL 3 level according to IEC 61508:2010 Ed. 2 for high risk industries. It provides isolation between input and output contacts. D5294S has 2+2 relay contacts connected in parallel and then in series to avoid spurious trips and to increase availability. FEATURES • Installation in Zone 2. • Compatible with DCS/PLC pulse testing. • Internal relay coil short circuit detection. • Line and Load short/open circuit detection. • The fault in the field is directly mirrored to the PLC DO. • Solenoid resistance measurement even in presence of serial connected diodes (patented resistance measuring technique). • RMS measurement of voltage (before and after load energization) and load current. • Automatic acquisition of voltage, current and load resistance values. • Earth leakage detection on both ac phases in de-energized load condition. • 4 A high availability SIL 3 contacts for NE or F&G/ND load. • 6 A inrush current at 24 Vdc / 250 Vac. • Input/Output/Supply isolation. • EMC Compatibility to EN61000-6-2, EN61000-6-4, EN61326-1, EN61326-3-1 for safety system. • Simplified installation using standard DIN-Rail and plug-in terminal blocks, with or without Power Bus, or customized Termination Boards.