2 AC Compressor Units on One Breaker

[Mike Lamb]

Can 2 AC compressor units be run on one 240V breaker. If not, what would the appropriate NEC reference be. Thanks.

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[Marc]

You can have a feeder circuit/sub-panel serving both condensers but you need a separate branch breaker for each condenser in order to satisfy nameplate specs. The manufacturer assumes one circuit serves one condenser. Wiring it otherwise would violates those specs.

If that's a disconnect in the photo and it serves both units, something's wrong otherwise the breaker couldn't maintain the combined currents of both units.

Marc