When properly used, a Solid State Relay (SSR) provides a high degree of reliability, long life and
reduced electromagnetic interference (EMI), together
with fast response and high vibration resistance, as compared to an
electromechanical relay (EMR). An SSR offers all the inherent advantages
of solid state circuitry, including consistency of operation and a
typically longer usable lifetime. This is possible because the SSR has
no moving parts to wear out or arcing contacts to deteriorate, which are
primary causes of failure of an electromechanical relay. When properly
applied, an SSR will have a normal life expectancy of many millions of
operations, 10–1000 times more than most electromechanical relays. SSRs
also have environmental advantages compared to mercury contactors.
Solid state relays can switch up to 120 times per second, much faster than any electromechanical
relay. When used in heating applications, fast cycling
can dramatically improve the life of the heater by reducing thermal
Low Input Power Required
SSRs allow the switching of large loads via ultra-sensitive input power. A low level logic signal (TTL)
can activate a switch for as much as 100 Amps.
Completely quiet switching, beneficial in medical
applications, environmental controls or other areas where quiet
operation is desirable. Zero-crossing control also means low electrical
noise when used near computers, PLC™s, SCADA systems, or other factory
automation control systems.
Continental Industries is an industry leader in product
innovation. We were the first company in the U.S. to produce and market a
fully integrated DIN Rail mountable solid state relay with heat sink.
We have proven that leadership again with the introduction of the SV
family of SSRs that include the Superior Surge Survival™ technology.