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{scroll-pagetitle}Solid State Relay Output Interface{scroll-pagetitle}
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{*}Solid State Relay Output{*}{scroll-align-center}

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The _FAC-2100_ can be special ordered with an enhanced relay board that can include up to three DC or AC solid-state form A relays (see figure above.) Each solid-state relay is capable of switching 3 amp resistive or inductive loads at 60V DC or 140 V AC.

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Each solid-state relay must be individually specified as AC or DC when ordered. You may not use the AC type to switch DC signals and visa-versa.

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Do not use the solid-state modules to switch low currents as they typically have a 4-mA leakage current in the off state. Use a mechanical relay if it is necessary to switch low current.

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Keep in mind that DC solid-state relays have defined polarities -- the terminals labeled common (COMM) are positive and those labeled normally open (N/O) are negative.

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Also, note that the AC solid-state modules are zero crossing turn-on. This means that the modules will not energize until the input waveform crosses zero volts. This translates to a maximum switching delay of approximately half the AC line frequency.

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On _FAC-2100_ units equipped with miniature cylindrical connectors, some relay outputs may have additional current carrying limitations imposed by the connector pin. Refer to the [Connector Pinout|PDG:Connector Pinout (FAC2100)] section for more information.

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