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Interesting -- instead of a shared neutral, the sub-circuits share a leg. For what it's worth, here are some snapshots of simulation of such a circuit, upstream of an equivalent pair of 2-wire circuits (240V and 120V). Snapshots taken at peak voltage.

1. closed circuits

2. with the MWBC's shared leg open:

3. with the MWBC's neutral open:

4. with the MWBC's legs swapped. note the effects on load balancing in the "panel" (bottom left L1 - N - L2).

Interesting -- instead of a shared neutral, the sub-circuits share a leg. For what it's worth, here are some snapshots of simulation of such a circuit, next to an equivalent pair of 2-wire circuits (240V and 120V). The "panel" is the 3 main parallel wires along the bottom. Snapshots taken at peak voltage.

1. closed circuits

2. with the MWBC's shared leg open:

3. with the MWBC's neutral open:

4. with the MWBC's legs swapped. note the effects on load balancing in the "panel" (bottom left L1 - N - L2).

Interesting -- instead of a shared neutral, the sub-circuits share a leg. For what it's worth, here are snapshots of simulation of such a circuit, alongside an equivalent pair of 2-wire circuits (240V and 120V). Snapshots taken at peak voltage.

1. closed circuits

2. with the MWBC's shared leg open:

3. with the MWBC's neutral open:

4. with the MWBC's legs swapped

Interesting -- instead of a shared neutral, the sub-circuits share a leg. For what it's worth, here are some snapshots of simulation of such a circuit, upstream of an equivalent pair of 2-wire circuits (240V and 120V). Snapshots taken at peak voltage.

1. closed circuits

2. with the MWBC's shared leg open:

3. with the MWBC's neutral open:

4. with the MWBC's legs swapped. note the effects on load balancing in the "panel" (bottom left L1 - N - L2).

Interesting -- instead of a shared neutral, the sub-circuits share a leg. For what it's worth, I simulated such a circuit, alongside an equivalent pair of 2-wire circuits (240V and 120V). Snapshots taken at peak voltage.

1. closed circuits

2. with the MWBC's shared leg open:

3. with the MWBC's neutral open:

4. with the MWBC's legs swapped

Interesting -- instead of a shared neutral, the sub-circuits share a leg. For what it's worth, here are snapshots of simulation of such a circuit, alongside an equivalent pair of 2-wire circuits (240V and 120V). Snapshots taken at peak voltage.

1. closed circuits

2. with the MWBC's shared leg open:

3. with the MWBC's neutral open:

4. with the MWBC's legs swapped