APC SYA4K8I uninterruptible power supply (UPS) 4 kVA 2800 W

General Features:
Audible Alarms, Automatic internal bypass, Automatic restart of loads after UPS shutdown, Automatic self-test, Battery modules connected in parallel, Cold-start capable, Configurable for N+1 internal redundancy, Disconnected battery notification, Field-replaceable power distribution panel, Frequency and voltage regulation, Generator Compatible, Hot-swappable batteries, Hot-swappable intelligence modules, Hot-swappable power modules, InfraStruXure Manager Compatible, Input Power Factor Correction, Intelligent Battery Management, LCD display, Manageable external batteries, Modular design, Network manageable, Plug-and-Play external batteries, Power conditioning, Power Modules connected in parallel, Predictive failure notification, Programmable Frequency, Rack/Tower Convertible, Redundant Intelligence Modules, Removable input/output wiring tray, Resettable circuit breakers, Safety-agency approved, Scalable Power Capacity, Scalable runtime, Shippable with modules installed, SmartSlot, User-replaceable batteries, User-replaceable intelligence modules, User-replaceable power modules.