LTS Voltage Drop Calculator

LTS Voltage Drop Calculator main image LTS Voltage Drop Calculator image
LTS โ€” Voltage Drop Calculator
DC RUN 0% DROP 0M RUN
CABLE RUN PLANNER
For Installers & Integrators

VOLTAGE.DROP

Check whether a cable run โ€” PoE or dedicated DC power โ€” will still deliver enough voltage at the far end before you pull the cable.

! Planning estimate only. Uses standard copper conductor resistance per AWG at 20ยฐC โ€” real-world results vary with temperature, connector losses, and cable quality. Treat the 10% drop threshold as a rule of thumb; always check the powered device's minimum operating voltage on its datasheet.

01 Power Delivery

Standard 802.3af/at, one polarity pair carrying power.

02 Cable

03 Result

0
% drop
at the far end of the run
Voltage dropโ€”
Delivered voltageโ€”
Loop resistanceโ€”
Resultโ€”
0%Target: 10%30%+

04 Drop by Gauge โ€” Same Run

Same length and load, across common conductor sizes.

AWGLoop RDropDeliveredResult
LTS Voltage Drop Calculator โ€” built for LTS Security Australia installers. Confirm powered-device minimum voltage requirements before finalising cable runs.