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PSU Headroom and Efficiency Calculator

Loading, input watts, waste heat, annual waste cost and growth room of a chosen supply. 5 inputs, 6 outputs with grouped results.

Inputs

Supply

Connected simultaneous watts.

Nameplate rating.

At this loading.

Energy

Energized hours.

Blended rate.

Result

AC input
Waiting for calculation.
Waste heat
Waiting for calculation.
Loading
Waiting for calculation.
Waste cost / yr
Waiting for calculation.
Growth room to 80%
Waiting for calculation.
Waste energy / yr
Waiting for calculation.
Screening calculation only. Verify against NEC articles cited on the page and the equipment nameplate; the authority having jurisdiction governs.

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24V Branch Circuit Planner

Branch current and fuse check per branch, total DC load, wire gauge adequacy and drop on the longest run. 6 inputs, 6 outputs with...

Outputs: Branch current · Total DC current · Total DC power

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24V DC Power Budget (PLC Panel)

Six load groups with simultaneity, inrush allowance, headroom, standard PSU, AC input and 24V bus current. 9 inputs, 7 outputs with grouped results.

Outputs: Connected total · Simultaneous load · Sized with margins

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Workspace

Keep the assumptions with the result.

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