Electrical reference chart
Panel Load Schedule Chart
Use this panel load schedule chart after the calculator result to document circuit loads, breaker locations, phase balance, spare capacity, and panel limitations before adding or rearranging circuits.
Quick reference table
A panel load schedule records circuit number, breaker poles, VA/amps, A-B-C phase balance, spare spaces, tandem limits, directories, and spare capacity. Use the calculator worksheet to compare calculated load with panel rating, service capacity, breaker compatibility, equipment labels, adopted NEC context, and AHJ expectations.
Panel schedule worksheet columns
| Column | Record | Use |
|---|---|---|
| Circuit number | Panel position, pole count, breaker type, and spaces used | Identifies location and compatibility |
| Load description | Room, equipment, tenant, or system served | Creates a useful directory and maintenance record |
| Calculated load | VA, watts, amps, nameplate source, or demand note | Feeds panel and service load calculation |
| Phase or leg | A, B, C, or split-phase leg assignment | Supports balance and neutral review |
| Future status | Spare, space, planned EV, HVAC, tenant, or equipment addition | Keeps capacity assumptions visible |
After the panel calculator result
| Result area note | Field question | Why it matters |
|---|---|---|
| Open breaker spaces remain | Are tandems allowed and is service capacity available? | Space does not prove electrical capacity |
| Phase imbalance appears | Can load assignments be moved without violating circuit requirements? | Balance affects neutral and phase loading |
| Panel rating near limit | Does the service load calculation also pass? | Panel capacity and service capacity must both be checked |
| Directory is unclear | Can each circuit be verified in the field? | Old labels often hide actual connected loads |
How to use this chart
Inventory circuits
Record each circuit, breaker rating, load description, pole count, phase assignment, and calculated load basis before estimating panel capacity.
Check spaces and balance
Panel rating, breaker spaces, tandem restrictions, breaker compatibility, and phase balance should be visible before adding new loads.
Use the calculator as a schedule check
Open the panel calculator when circuit loads, spare capacity, phase balance, panel rating, and service comparison need a documented result.
Formula basis
Panel load screen = documented circuit loads after selected demand assumptions, compared with panel rating, service capacity, phase balance, and equipment limitations.
- Circuit load is the connected or calculated load assigned to each breaker position.
- Demand assumptions depend on the building type, project scope, and calculation path.
- Panel capacity includes bus rating, main rating, breaker compatibility, spaces, tandem rules, and phase balance.
Worked examples
Panel upgrade worksheet
List existing breakers, actual connected loads, spare spaces, tandem restrictions, major loads, and calculated demand before deciding whether the panel rating or service capacity is the limiting factor.
Balancing a three-phase panel
A schedule can show acceptable total load while one phase is overloaded, so the worksheet should keep phase assignment visible after the calculator result.
Related calculators
Electrical Panel Load Calculator
Screen panel current, utilization, and spare capacity for common U.S. residential and light-commercial panels.
Branch Circuit Count Calculator
Screen the number of dwelling-unit branch circuits to plan from floor area, required 20A dwelling circuits, and user-entered dedicated equipment circuits.
Electrical Load Calculator
Estimate demand load, service current, and a recommended U.S. service size for dwellings and preliminary non-dwelling projects.
Related charts
Branch Circuit Load Chart
Plan branch circuit loads from actual loads served, receptacles, lighting, fixed equipment, continuous duty, voltage, conductor size, and breaker capacity.
Service Load Calculation Chart
Plan electrical service load calculations from building type, general load basis, fixed equipment, HVAC, EV charging, service voltage, and utility notes.
Breaker Size Chart
Plan breaker size from load category, continuous duty, conductor protection, interrupting rating, equipment listing, and calculator result notes.
Frequently asked questions
These answers explain how to use the chart without turning a quick reference into a final design decision.