Quick answer A limit switch can provide normally open (NO), normally closed (NC) or changeover contacts. In the normal, unoperated position, an NO contact is open and an NC contact...Read More
Quick answer Limit switches used on cranes, conveyors and hoists must be selected around the actual motion, stopping point, environment and control logic. The right device should actuate reliably at...Read More
Quick answer kVAR capacitors should be selected by checking the required reactive power correction, system voltage, duty type, harmonic level, step size, switching sequence, panel design and site conditions. The...Read More
Quick answer An enclosure should be sized around the actual electrical layout, not only the outside dimensions shown in a catalogue. A good enclosure selection should consider component space, wiring...Read More
Quick answer A DOL starter starts a motor by applying full line voltage directly to the motor terminals. When the start push button is pressed, the contactor coil is energized....Read More
Quick answer A dc contactor is an electrically operated switching device used to make or break a DC power circuit. It uses a coil to move the contact mechanism, main...Read More
