APC Smart-UPS SRT Tower Isolation/Step-Down Transformer

Overview

The APC SRT5KTF is an isolation and step-down transformer designed to work alongside a Smart-UPS or compatible UPS systems. It provides clean and stable power by eliminating inrush current and transformer saturation, which can otherwise trip breakers or require oversizing your power setup. This transformer accepts input voltages from 208 to 240 volts and outputs between 120 and 240 volts, making it ideal for environments where mixed-voltage equipment needs to run from the same power source. Its robust design supports demanding startup loads with a peak current rating of 5000 amperes, ensuring reliable operation in server rooms, network closets, industrial control panels, and engineering labs.

Key features

• Prevents inrush current and transformer saturation to protect breakers and avoid oversizing power chains
• Supports mixed-voltage environments by accepting 208 V to 240 V input and delivering 120 V to 240 V output
• Includes twelve built-in outlets for versatile device connections: eight NEMA 5-20R for standard IT equipment, plus two L6-20R, one L6-30R, and one L14-30R for higher current devices
• Equipped with a three-foot power cable featuring a NEMA L6-30P twist-lock plug for secure and convenient installation near the UPS
• Operates reliably within ambient temperatures from 32°F to 104°F, suitable for climate-controlled and light industrial spaces
• Stable tower enclosure weighing 125 pounds fits comfortably beside racks or under desks without tipping

Key specs

• Input voltage: 208 to 240 volts
• Output voltage: 120 to 240 volts
• Number of outlets: 12 total (8 NEMA 5-20R, 2 L6-20R, 1 L6-30R, 1 L14-30R)
• Peak current rating: 5000 amperes
• Power cable length: 3 feet
• Power cable plug type: NEMA L6-30P twist-lock
• Operating temperature range: 32°F to 104°F
• Weight: 125 pounds

Connectivity and compatibility

This transformer is designed to integrate seamlessly with APC Smart-UPS units and other compatible UPS systems, providing a reliable power bridge for mixed-voltage setups. The variety of outlet types supports a wide range of equipment, from standard office IT devices to higher current industrial or lab gear. The twist-lock plug ensures a secure connection to the UPS, minimizing accidental disconnections and simplifying cable management.

Ideal uses and environments

The APC SRT5KTF fits well in environments where both high-voltage and standard 120-volt devices need to operate from a single power source. It is a strong choice for server rooms, network closets, industrial control panels, and engineering labs that require stable power distribution without the risk of breaker trips or power chain oversizing. Its temperature tolerance and sturdy tower design make it suitable for climate-controlled spaces and light industrial settings where reliable, continuous operation is critical.