Solid State Relays



    SSRT-240D25 View larger

    25A SPST N/O 240Vac Power 3~32Vdc Control



    • Zero Cross Fire Back to Back SCR Design
    • Hocky Puck Style 1.75"w X 2.25"L X 0.87"H
    • Maximum I²T Fusing Is 937A²Seconds
    • Line Voltage Max. 280Vac
    • Ambient Operating Temperature -40°F ~ 176°F
    • Thermal Resistance 1.7°F C/W
    • Snubberless Traic Output Single Pole Double Throw



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    • Burst-Firing (Zero Cross Fire) Turns Power ON and OFF During The AC Cycle At Zero Potential. This Type Of Relay Should Be Protected With Semiconductor Fuses. On A High Fault Short These Type Of Fuses Open In Tenths Of a Millisecond .  The Fuse Should Be Sized 125% Of The Current Load Of The Relay.  The I²T Rating Of The Fuse Must Be Below The Maximum I²T Rating Of The Relay.

      NOTE: (I²T) Rated Current Squared Multiplied by Time (Seconds) 

      Manufactured By Potter & Brumfield