Circuit Designer

Screen a preliminary cable size,
with visible working.

Enter the load and the installation conditions. ElectraCore chains the whole calculation: design current, protective device, representative cable capacity after derating, and voltage drop. It does not verify fault protection, disconnection time, energy withstand, earthing, terminals, or manufacturer data.

1Load→2Device→3Cable size→4Voltage drop→5Screening

Load & supply

Load power (W)

Power factor (0–1)

Supply voltage (V)

Run length (one-way) (m)

Protective device

Auto-selected as the smallest standard rating at or above the design current. Override if your design needs a specific device.

Installation conditions

Reference method

Ambient temp

Grouped circuits

Thermal insulation

Voltage-drop limit (%)

Typical guidance is around 3% for lighting and 5% for power. Set the figure your installation requires and verify against your local wiring regulations.

Loading ElectraCore…

Screen a preliminary cable size,
with visible working.

1Load→2Device→3Cable size→4Voltage drop→5Screening

Screen a preliminary cable size,with visible working.

Load & supply

Protective device

Installation conditions

Screen a preliminary cable size,with visible working.

Load & supply

Protective device

Installation conditions

Screen a preliminary cable size,
with visible working.

Screen a preliminary cable size,
with visible working.