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Relays & Automation
Shelly
PA Systems

PoE Budget Calculator

Add up your camera, intercom and access point loads and check them against your switch's total PoE budget — with headroom so you're not running flat out.

Devices

DeviceWattsQty

Results

Total device draw
Draw incl. headroom
Budget remaining
Budget used

Preset wattages are typical maximum draws — always check the datasheet, especially with IR at night and PTZ motors under load. Remember the switch budget is shared across all ports and cable losses increase with run length. Results are a guide only.