SSRs won't be worn down by repeated switching

Crydom's CX series SSRs with unlimited switching offer a solution to the problem of wear as a reliable, cost-effective alternative to electromechanical relays for motor drive applications.

Continuous motor drive applications such as conveyor belts in airport baggage lines and industrial processing are now routinely stopped and started much more than ever before, because of a heightened awareness of energy consumption.

According to global solid state relay (SSR) manufacturer Crydom International, this repeated stopping and starting of drive motors has caused unforeseen long-term wear problems to the electromechanical relays and contactors commonly used in these drives.

Crydom's CX series SSRs with unlimited switching offer a solution to the problem of wear as a reliable, cost-effective alternative to electromechanical relays for motor drive applications.

Crydom's CX series SSRs have the ability to switch loads up to 660V AC with ultrahigh surge current capability.

They provide 4000V RMS isolation input to output and are compatible with ac or dc control.

CX series SSRs are a UL motor rated product, designed to control loads of up to 5A at up to 30C ambient temperature and are ideal for motor drive applications allowing engineers to deliver improved performance and reliability with simplified designs.

The CX series' compact single-inline (SIP) package and small footprint means that for designs with multiple relays on one printed circuit board (PCB) the space saving can be significant.

The space saving and other design and functionality benefits make Crydom's CX series SSRs a highly cost-effective option.

"In motor drive applications, such as conveyor belts that run continuously, problems associated with electromechanical relay wear were not apparent.

Through more general awareness of 'green' issues, businesses have been forced to become more conscious of their power consumption and wastage.

This has resulted in regular stopping and starting of the motor, often leading to premature wear out and reliability problems", comments Bruce McEachran, Technical Manager, Crydom International.

"As well the enormous benefits in reliability gained through unlimited switching, the CX series solid state relay can save significant space on PCB 'real estate' in many designs compared to using an electromechanical relay".

The Series CX is manufactured in Crydom's ISO9001 certified facility for optimum product performance and reliability.

The range carries all VDE, UL and CSA approvals.

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