Panel schedule · Circuit assignment

Panel Schedule Calculator

Assign circuits to a breaker panel, track load per phase, and check panel utilization. Add circuits with pole counts and loads to balance your panel before wiring.

100% free
Phase balancing
1φ & 3φ panels
Utilization check

Panel schedule

NEC 220.60 · Load balance

Formula

Load per phase = Σ circuit VA on phase

Field inputsPanel schedule

Panel: 1φ / 3φ
Balance: Phase A vs B
Output: VA per phase
Check: Utilization %

Assign circuits, balance loads, and check panel capacity before wiring.

Panel configuration

Set up your panel and circuits

Panel rating (A)

Phase configuration

System voltage (V)

Circuits

Description

Poles

Breaker (A)

Load (VA)

Assumptions: circuits are assigned to alternating phases starting from slot 1. Multi-pole breakers (2P or 3P) apply their load to all phases they occupy. NEC 220.60 requires loads to be balanced between phases as far as practicable. This is a planning aid — always verify against the current NEC and your AHJ.

Panel schedule result

Load summary

105% utilized

Total connected load

50,200 VA (209.2 A)

Panel rating: 200 A @ 240 V = 48,000 VA
Total connected VA: 50,200 VA
Total load amps: 209.2 A
Panel utilization: 104.6%
Total breaker rating: 190 A
Number of circuits: 8

Load per phase

Phase A

24,700 VA

Phase B

25,500 VA

Phase imbalance

3.1% (well balanced)

Safety & accuracy notice

This panel schedule calculator is a planning aid only. It is not engineering, a permit, or design approval, and it is not legal or code certification. Results are estimates based on the NEC standard method.

Always verify against the current adopted NEC (National Electrical Code), equipment listings and manufacturer instructions, and your local AHJ (Authority Having Jurisdiction — the inspector or department that enforces the code). Final panel schedules should be reviewed and approved by a licensed electrician or professional engineer.

Panel schedule FAQ

How do I balance loads across panel phases?

NEC 220.60 requires that the load be evenly distributed between phases as far as practicable. For single-phase panels, circuits alternate between Phase A and Phase B on adjacent poles. For three-phase panels, circuits rotate A-B-C. This calculator totals load per phase so you can see the balance.

How do I handle multi-pole breakers in a panel schedule?

A 2-pole breaker (e.g. 240 V range or dryer) contributes its full load to both Phase A and Phase B. A 3-pole breaker in a 3-phase panel contributes to all three phases. This tool lets you set the pole count per circuit so the load is assigned correctly.