The APC AP4421A is a fifth-generation rack-mounted Automatic Transfer Switch designed to provide redundant power distribution for single-corded equipment in IT environments. This 1U single-phase ATS ensures high availability by automatically switching between two power sources, protecting critical equipment from power disruptions.
Configure and monitor the AP4421A through multiple interfaces including secure Web UI, SNMP, and CLI. Full compatibility with EcoStruxure IT platform enables centralized management and monitoring across your infrastructure.
Ideal for data centers, server rooms, and network closets requiring redundant power for single-corded servers, networking equipment, and storage devices. Backed by 2-year standard warranty with optional 5-year extended warranty available.

The APC AP4421A is a fifth-generation rack-mounted Automatic Transfer Switch designed to provide redundant power distribution for single-corded equipment in IT environments. This 1U single-phase ATS ensures high availability by automatically switching between two power sources, protecting critical equipment from power disruptions.
Configure and monitor the AP4421A through multiple interfaces including secure Web UI, SNMP, and CLI. Full compatibility with EcoStruxure IT platform enables centralized management and monitoring across your infrastructure.
Ideal for data centers, server rooms, and network closets requiring redundant power for single-corded servers, networking equipment, and storage devices. Backed by 2-year standard warranty with optional 5-year extended warranty available.
