Electrical reference directory

Page 20 of 32 · 3155 references, with definitions, drawing context and available downloads and previews.

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Magnetic-field-effect qualifierQ020804 · Schematic Magnetically latched operating mechanism referenceMLOMR · Schematic Magnetoresistive elementHVR1S00689 · Schematic Magnetostrictive-effect qualifierQ020803 · Schematic Main earthing terminalMET · SLD / Schematic Main-and-transfer bus arrangementMBA · SLD / Schematic Main-input overvoltage59M · SLD / Schematic Main-input undervoltage protection27M · SLD / Schematic Main-tie-main source selectionMSS · Schematic Maintained emergency luminaire plan markEM-M · GA Maintained normally-closed contactNC HOLD · Schematic Maintained normally-closed pushbuttonPB NC HOLD · Schematic Maintained normally-open contactNO HOLD · Schematic Maintained normally-open pushbuttonPB NO HOLD · Schematic Maintained-position qualifierQ070108 · Schematic Maintenance-mode closing inhibitMCI · Schematic Make-before-break changeover contactMBB · Schematic Manual call point plan symbolMCP · GA Manual emergency-trip pathMEP · Schematic Manual spring-charging indicationMSI · Schematic Manual transfer or selector device43 · SLD / Schematic Manual transfer switchMTS · SLD / Schematic Manual-operation qualifierQ021301 · Schematic Manually released latching deviceQ1020604 · Schematic Manually unlatched NC contactNC UNLATCH · Schematic Manually unlatched NO contactNO UNLATCH · Schematic Marshalling cable-screen earth interfaceMCEI · Schematic Master contactor4 · SLD / Schematic Master element1 · SLD / Schematic Master sequence device34 · SLD / Schematic Maximum-current monitoring relayI HIGH · SLD / Schematic Maximum-demand indicatorMD · SLD / Schematic Maximum-voltage measuring relayK · Schematic / SLD MEAN WELL EDR-75 DIN rail power supplyEDR-75 · GA MEAN WELL EDR-120 DIN rail power supplyEDR-120 · GA MEAN WELL EDR-150 DIN rail power supplyEDR-150 · GA MEAN WELL HDR-15 DIN rail power supplyHDR-15 · GA MEAN WELL HDR-30 DIN rail power supplyHDR-30 · GA MEAN WELL HDR-60 power supplyHDR-60 · GA MEAN WELL HDR-100 DIN rail power supplyHDR-100 · GA MEAN WELL NDR-75 DIN rail power supplyNDR-75 · GA MEAN WELL NDR-120 DIN rail power supplyNDR-120 · GA MEAN WELL NDR-240 power supplyNDR-240 · GA MEAN WELL NDR-480 DIN rail power supplyNDR-480 · GA MEAN WELL SDR-75 DIN rail power supplySDR-75 · GA MEAN WELL SDR-120 power supplySDR-120 · GA MEAN WELL SDR-240 DIN rail power supplySDR-240 · GA MEAN WELL SDR-960 DIN rail power supplySDR-960 · GA MEAN WELL TDR-240 DIN rail power supplyTDR-240 · GA MEAN WELL TDR-480 DIN rail power supplyTDR-480 · GA MEAN WELL TDR-960 DIN rail power supplyTDR-960 · GA MEAN WELL WDR-120 DIN rail power supplyWDR-120 · GA Measured ground directional overcurrent67X · SLD / Schematic Measured ground instantaneous overcurrent50X · SLD / Schematic Measured ground time-overcurrent51X · SLD / Schematic Measuring relayK MEAS · Schematic Mechanical clutch connectionQ021216 · Schematic Mechanical condition monitor39 · SLD / Schematic Mechanical gear connectionQ021223 · Schematic Mechanical interlock between devicesQ021211 · Schematic Mechanical stop latch in engaged stateQ021210 · Schematic Mechanical stop latch in neutral stateQ021209 · Schematic Mechanical stop-latch indicationQ021208 · Schematic Mechanically latched relay coilK LATCH · Schematic Mechanism maintenance-alarm interfaceMMI · Schematic Mechanism pressure-lockout interfaceMPI · Schematic Mechanism pump-run timeoutMPT · Schematic Mechanism pump-start controlMPC · Schematic Media converter symbolMC · Schematic Medium-voltage switchgear lineupGA · GA / SLD Merging-unit analogue channel mappingMACM · Schematic Merging-unit binary status publisherMBSP · Schematic Merging-unit time-quality interfaceMTI · Schematic Mesh-corner circuit arrangementMCA · SLD / Schematic Metering compartmentGA · GA / SLD Metering-core CT secondary circuitMCSC · Schematic Metering-winding VT secondary circuitMVSC · Schematic Microgrid active-power control ownership selectorMACOS · Schematic Microgrid active-power ramp limiterMARL · Schematic Microgrid alternate-PCC topology selectorMATS · Schematic Microgrid automatic-mode enableMAE · Schematic Microgrid available-generation capacity estimatorMACE · Schematic Microgrid black-start energy-reserve gateMBEG · Schematic Microgrid black-start source selectorMBSS · Schematic Microgrid breaker closing-time compensationMBCC · Schematic Microgrid bus-section connectivity trackerMBCT · Schematic Microgrid bus-voltage deviation monitorMBDM · Schematic Microgrid capacitor-step coordination requestMCCR · Schematic Microgrid close-command confirmation interfaceMCCI · Schematic Microgrid common-alarm external interfaceMCEI · Schematic Microgrid communication-degraded mode indicationMCMI · Schematic Microgrid control-mode event recorderMCER · Schematic Microgrid controllerMGC · SLD / Schematic Microgrid controller configuration-revision referenceMCCR · Schematic Microgrid controller manual-mode interfaceMCMI · Schematic Microgrid critical-load exemption gateMCEG · Schematic Microgrid critical-load restoration requestMCRR · Schematic Microgrid dead-island utility-reconnect interfaceMDUI · Schematic Microgrid dead-system qualificationMDQ · Schematic Microgrid dead-utility island-close restraintMDIR · Schematic