General & Planning · CEC Rule 8-304 & 12 outlets per circuit
Outlet Load Calculator
Add up plug-in appliances and devices on a single 120V circuit to prevent breaker trips and check against the 80% continuous load safety threshold.
1. Circuit & Connected Devices
2. Load Analysis
80% Continuous Safety RuleTOTAL CONNECTED POWER
1,950 Watts
ESTIMATED CURRENT DRAW
16.3 Amps
CIRCUIT CAPACITY UTILIZATION
108%
Circuit Overloaded! Your total load exceeds the 15A breaker rating. The breaker will trip.
CEC Rules for Branch Receptacle Circuits
- CEC Rule 8-304 limits general-purpose 15A residential branch circuits to a maximum of 12 outlets/receptacles per circuit (considered 1A per outlet baseline).
- For continuous loads (running 3+ hours like space heaters), maximum safe load on a 15A circuit is 12 Amps (1,440 Watts — 80% rule).
- High-draw heating appliances (1500W space heaters, hairdryers) should ideally be given their own dedicated or low-load circuit.
One device on one circuit
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