Circuit Breaker Size Calculator
Input Parameters
Colorblind Mode
Line or phase voltage
Voltage must be greater than 0
Single-phase or three-phase system
Phase type is required
Total connected load in watts
Load power must be greater than 0
Load power factor (0.1 to 1.0)
Power factor must be between 0.1 and 1.0
Motor or equipment efficiency (optional)
Efficiency must be between 1% and 100%
Continuous or non-continuous operation
Load type is required
Electrical code standard
System standard is required
Installation environment temperature
Temperature must be between -10°C and 60°C
Method of installation
Installation type is required
Calculation Results
Safety Gauge
Standard Breaker Ratings
Derating Impact Analysis
Enter all required parameters and click "Calculate" to see results.
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