![]() These moving parts include the contacts that switch between the normally open and normally closed stationary contacts in the relay. They offer safe switching of different DC loads due to optimized matching between the semiconductor and the relay.Įlectromechanical relays (EMR) use physical moving parts to achieve the desired functionality. The relays are highly reliable thanks to comprehensive load tests and high quality requirements. The hybrid design ensures lower power dissipation and an increased service life, and offers the perfect compliment to the existing hybrid variants for AC voltages. Phoenix Contact PLC-INTERFACE solid state relays have an overall width of just 14 mm with switching voltages up to 250 VDC and 10 A possible. Because of their resistance to shock and vibration and non-arcing, motion control applications such as lifts, hoists conveyor systems and elevators are the perfect fit for solid state relays. They are used in lighting applications for dimming and for their ability to operate silently and switch quickly. Solid state relays are used in heating control applications for a compressor’s soft-start, fan, blower, heater and valve control. They are highly resistant to vibration and shock and are unaffected by the presence of dust, gases or other contaminants. They are designed for applications that require high switching speed without arcing or contact noise. Solid state relays have no moving parts like electromechanical relays, but utilize electrical components and optical properties of solid state semi-conductors to perform IO switching functions and isolation.
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