Online tools

24 VDC Voltage-Drop & Loop-Power Calculator

Calculate two-wire cable drop, terminal voltage, power loss and 4–20 mA loop voltage margin.

Open tool View all tools

Runs in your browser No account required Instant calculation

FastResults update immediately

PrivateInputs stay in the browser

PracticalBuilt for industrial workflows

DC field-power design

Calculate cable drop and loop-power margin

Two-conductor round-trip calculation

Enter one-way cable length and total load current.

Supply voltage

One-way length

Conductor area Load current

Conductor materialMinimum device voltage

Loop resistance3.500 Ω

Voltage drop0.700 V2.92%

Terminal voltage23.300 VAbove minimum

Cable power loss0.140 WMaximum length 857.1 m

Check voltage remaining for the transmitter after receiver, barrier and cable drops.

Transmitter minimum

Receiver resistance

Barrier / fixed drop

Design current

Available transmitter voltage16.930 VMargin 4.930 V · loop passes

Technology insights

Practical guidance derived from the current PyXis and Titania technical material.

Technology article

How protected 24 VDC sourcing outputs should be applied to solenoids, relays, lamps and other industrial loads.

How we can support you

Share the application, protocol, signal range or installation constraints with our engineering team.

Talk to an Engineer View all tools