APC NetShelter 1U Rack Automatic Transfer Switch 208V

Overview

The APC AP4434A is an automatic transfer switch designed to fit in a 1U rack space, providing reliable redundant power to single-corded devices. It monitors two independent 208 V power sources and switches between them in less than 10 milliseconds, ensuring continuous operation for servers, storage arrays, and network equipment. With a 20 A, 3300 VA capacity, it supports critical loads while occupying minimal rack space.

Key features

• Fast transfer time under 10 ms to prevent downtime during power source failure
• Dual IEC C20 input cords allow connection to separate branch circuits or UPS systems for true power redundancy
• Eight IEC C13 and one IEC C19 outlets provide flexible power distribution for mixed equipment types
• Integrated APC NMC3 network card enables remote monitoring, load management, and firmware updates through secure Web UI, SNMP, or command line interface
• Supports environmental monitoring with optional sensors for temperature and humidity, enhancing data center management
• Compact 1U form factor fits standard 19-inch racks and blends seamlessly with NetShelter enclosures
• Standard two-year warranty with an option to extend coverage to five years for added peace of mind

Key specs

• Input voltage: 208 V
• Current rating: 20 A
• Power capacity: 3300 VA
• Input connectors: Two IEC C20 inlets
• Output connectors: Eight IEC C13 outlets, one IEC C19 outlet
• Rack unit size: 1U
• Transfer time: Less than 10 milliseconds
• Network management: APC NMC3 card with Web UI, SNMP, CLI support

Connectivity and compatibility

This transfer switch is compatible with any standard 19-inch rack and supports connection to two independent power sources, such as separate UPS systems or branch circuits. Its IEC C13 and C19 outlets accommodate a wide range of IT equipment, making it suitable for diverse data center and network environments. The integrated network card allows seamless integration into existing monitoring systems and supports remote management protocols commonly used in professional IT setups.

Installation and setup

Installation is straightforward, requiring only a single rack unit of space. The unit’s black finish matches APC NetShelter enclosures, ensuring a professional appearance in your rack. Connecting the two IEC C20 input cords to separate power sources provides true redundancy, while the multiple output outlets simplify power distribution to your devices. The network management card can be configured via a secure web interface or command line, allowing quick setup and ongoing monitoring.

Ideal uses and environments

The AP4434A is well suited to edge closets, branch offices, and small to mid-size data centers where equipment relies on a single power inlet but requires high availability. It is a strong choice for IT professionals who need to maintain uptime for critical servers and network gear without dedicating excessive rack space. Its fast transfer time and remote management capabilities make it a practical solution for environments where power continuity and monitoring are essential.