Tech Tools / Power & Circuits
Power & Circuit Load
Add gear by watts or amps. See total draw on 15 A and 20 A 120 V circuits, circuits needed at the 80% continuous-load rule, and a suggested per-circuit packing.
Use at your own risk. Wattage presets are typical nameplate-class figures and can vary by mode and accessories. Always check the device nameplate and local electrical code. This is not an electrician’s load calculation. This tool is a planning aid only. Always verify against manufacturer documentation and on-site measurements before deploying to a show.
- Total watts
- 0
- Total amps @120 V
- 0
- 15 A circuits (80%)
- 0
- 20 A circuits (80%)
- 0
Fill of selected circuit continuous budget
0 A
Suggested packing
Sources
- Continuous-load concept: size for 125% of continuous load → usable continuous current ≈ 80% of breaker (15 A→12 A, 20 A→16 A). NEC 210.19(A) / 210.20(A) concepts.
- Amps = watts ÷ 120 V (single-phase branch circuits in this tool).
- Preset wattages labeled “typical — check nameplate.”
What this power calculator does
It totals show gear wattage, converts to amps at 120 V, and estimates how many 15 A or 20 A circuits you need under continuous-load planning rules.
Formula
I = P ÷ V; continuous budget ≈ 0.8 × breaker amps; circuits ≈ ⌈total_amps ÷ budget⌉.
Worked example
Two 800 W projectors + four 90 W laptops = 1960 W → 16.3 A. On 20 A circuits (16 A continuous) that is two circuits after packing.
Tips
- Presets are typical — verify the nameplate.
- Inductive loads and inrush need extra headroom.
FAQ
What is the 80% continuous-load rule?
For continuous loads, size for 125% of the load — equivalently, plan to use about 80% of breaker rating (15 A → 12 A, 20 A → 16 A).
How do I convert watts to amps at 120 V?
Amps = watts ÷ 120. A 1200 W load is 10 A.
Is this a substitute for an electrician?
No. It is a show-floor planning aid. Always check nameplates and local electrical code.
Powering a show?
Kynetic plans distro and soft-power for corporate and medical events.