Crydom HS251-D2450 Solid State Relay
Price is below average
Current Price
$70.03
Average
$101.35
Min Price
$70.03
Max Price
$123.34
Price dynamics
31%
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in next 2 weeks
in next 2 weeks
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Product review & video
Welcome to this edition of Crydom Tech Lab. One of the most common questions we receive
through Crydom Tech Support is ”How does one perform a simple operational,
ON–OFF test on a Solid State Relay?” We will demonstrate such a test here today. Unlike Electromechanical relays that
can be given a basic test with a continuity checker or ohmmeter, solid state relays (SSR’s) require a minimum
amount of load current to switch. Testing with a meter does not present enough
of a load on the SSR to allow it to turn-on and there is no mechanical contact closure
within to show continuity on the meter. Additionally, since an SSR is by definition
a relay with no moving parts, there is no audible “click” to provide confirmation
that the input is actuating the output. All of that being said, the basic set-up and
operational bench testing of an SSR is quite simple. Note that line voltage will be presen
