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AFE3010: Split phase system

Ryno Strauss
Prodigy 20 points
Part Number: AFE3010


Can the AFE3010 be used in a split phase system? If so, how is it powered and how would the self test be wired?

  • 0
    TI__Mastermind 32395 points

    Hello valued engineer,

    Thank you for posting to the forum. So the AFE3010 I believe should be able to function on a split phase system; however, you may need one AFE3010 per phase according to UL 943 regulations which state that if any one energized conductor is non-energized, then this would not affect the GFCI to detect faults on the still energized conductor. This would then mean you would need a current transformer for each phase as well, one for the Phase 1 and the center-tapped neutral and the other for Phase 2 and the center-tapped neutral. Self-test would then be wired up normally. With this configuration you would want the AFE3010 to be powered up with the bridge rectifier being powered from the Phase and the neutral (center-tap).

    It does seem possible to only use one AFE3010+current transformer that is powered with Phase1 and Phase1 and run all three wires through the transformer (phase1, phase2, and neutral), but this would need to be validated and checked for regulatory compliance. 

    Hope this helps.

    Best,

    Peter