UPS Runtime Calculator - Backup Power for Security Systems Free

How to Use the UPS Runtime Calculator

1. Enter equipment power — NVR power consumption in watts
2. Add camera power — number of cameras and wattage each
3. Enter switch power — PoE switch consumption in watts
4. See results — total load, UPS recommendations, and runtime estimates

Perfect for security system designers, facility managers, and integrators planning backup power for surveillance systems.

Features

• Total load calculation — sum of all connected equipment
• UPS sizing — recommended VA rating based on total load
• Runtime estimates — backup time at various UPS capacities
• Common UPS sizes — 500VA through 3000VA
• Safety margin — recommends 20-30% headroom