The new PQ1 Power Quality Relay monitors sags, swells, interruptions, and impulses as short as 500 nanoseconds. And, at $276 (qty 1), you can buy twenty for the price of a single traditional power ...
Relays usually are driven using optocouplers, which offer isolation between analog and digital grounds to ensure that switching currents in the relay coils do not affect the noise margin of the ...
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