APC Smart-UPS Ultra On-Line, 3000VA, Lithium-ion, Rack/Tower 1U, 120V, 5x 5-20R, 1x L5-30R NEMA Outlets, SmartConnect, Extended runtime, W/rail kit

Overview

The APC SRTL3KRM1UC is an on-line uninterruptible power supply designed to provide reliable power protection with a capacity of 3000 volt-amperes. It fits into a single rack unit or can stand upright as a tower, making it adaptable to various installation environments. Equipped with a Lithium-ion battery, it offers longer life and faster recharge times compared to traditional lead-acid batteries, while maintaining a lighter overall weight.

This UPS uses true double-conversion technology to continuously condition incoming power and deliver a pure sine wave output, ensuring connected equipment experiences no interruption or power quality issues during outages. Its combination of multiple outlet types supports both standard and higher current devices, making it suitable for edge data centers, branch offices, network closets, and audio-visual setups.

Key features

• True double-conversion on-line design provides seamless power conditioning and zero transfer time to protect sensitive electronics.
• Lithium-ion battery technology extends runtime, reduces the unit’s weight, and offers a longer service life with quicker recharge capabilities.
• Multiple outlet options including five 5-20R and one L5-30R allow support for mixed load types within the same installation.
• SmartConnect Ethernet port enables secure remote monitoring and management through EcoStruxure IT, giving real-time insight into battery health, runtime, and load levels.
• Flexible installation options with included sliding rail kit, tower feet, and an eight-foot power cord accommodate shallow racks or shelf placement.
• Continuous power conditioning safeguards servers, storage devices, network gear, and other critical electronics from power disturbances.
• Five-year warranty covers both the UPS electronics and the Lithium-ion battery, providing predictable long-term ownership costs and peace of mind.

Key specs

• Capacity: 3000 VA
• Form factor: 1U rackmount or tower
• Input plug: NEMA L5-30P
• Output outlets: Five NEMA 5-20R and one NEMA L5-30R
• Battery type: Lithium-ion
• Power voltage: 120V
• Included accessories: Sliding rail kit, tower feet, eight-foot power cord
• Warranty: Five years covering electronics and battery

Connectivity and compatibility

The UPS features a SmartConnect Ethernet port that integrates with EcoStruxure IT and other cloud services, allowing administrators to monitor the unit remotely. This connectivity supports proactive maintenance by providing detailed information on battery status, load levels, and runtime, which helps avoid unexpected downtime. The mix of standard and high-current outlets ensures compatibility with a wide range of equipment commonly found in IT and AV environments.

Installation and setup

Installation is straightforward thanks to the included sliding rail kit and tower feet, which provide versatile mounting options. Whether you have limited rack space or prefer to place the UPS on a shelf, the design accommodates both scenarios. The eight-foot power cord adds flexibility in positioning the unit near power sources without requiring additional extension cables.

Ideal uses and environments

This UPS is well suited to edge data centers, branch offices, network closets, and audio-visual racks where space is limited but reliable power protection is critical. Its high power density and continuous power conditioning make it a strong choice for protecting servers, storage arrays, networking equipment, and sensitive electronics that demand clean and uninterrupted power. The remote monitoring capabilities also benefit IT teams managing distributed infrastructure.