List critical equipment
Identify which computers, network devices, communication systems or controls must remain powered during an interruption.
Calculate load and runtime
Total load and the desired backup duration are different requirements. Both are needed before comparing UPS options.
Consider the installation
Input supply, output distribution, ventilation, battery location, maintenance access and future expansion need planning.
Ask for a properly scoped option
Share the load list, required runtime, phase, site conditions and whether safe shutdown or longer continuity is the goal.
Use this guide as general product-selection information. Confirm the final product against the project specification and current manufacturer documentation.