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ATS Sizing Calculator

Calculate automatic transfer switch requirements.

The load or force applied to the system.
kW
Electrical potential difference measured in volts (V).
V
Multiplier used in the calculation.
Multiplier used in the calculation.

Results

Load Current:
Calculated load or force.
-A
ATS Size:
Recommended size based on calculations.
-A
Min KAIC Rating:
Calculated performance rating.
-kA
Reference: TIA-942 Standards. Transfer switch sizing.