APC Smart-UPS SRT Step-Down Transformer, 10kVA, rackmount, 4U, 2x NEMA L5-20R & 2x NEMA L14-30R outlets
SKU: 7333962135

APC Smart-UPS SRT Step-Down Transformer, 10kVA, rackmount, 4U, 2x NEMA L5-20R & 2x NEMA L14-30R outlets

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Description

APC Smart-UPS SRT Step-Down Transformer, 10kVA, rackmount, 4U, 2x NEMA L5-20R & 2x NEMA L14-30R outletsPower reliability matters in data centers, server rooms, and critical IT deployments. The APC Smart UPS SRT Step Down Transformer is a purpose built accessory designed to complement your Smart UPS by delivering precise voltage regulation and flexible power distribution in environments where higher voltage feeds (208V or 240V) must support standard 120V equipment. With a robust 10kVA capacity, a compact 4U rack footprint, and a thoughtful outlet

Power reliability matters in data centers, server rooms, and critical IT deployments. The APC Smart-UPS SRT Step-Down Transformer is a purpose-built accessory designed to complement your Smart-UPS by delivering precise voltage regulation and flexible power distribution in environments where higher-voltage feeds (208V or 240V) must support standard 120V equipment. With a robust 10kVA capacity, a compact 4U rack footprint, and a thoughtful outlet configuration, this transformer helps you protect sensitive devices, improve runtime efficiency, and maintain optimal performance across racks. Built to integrate seamlessly with APC’s power protection ecosystem, it’s an indispensable solution for tailoring your UPS system to meet evolving load requirements without compromising reliability or manageability.

  • Power capacity and compatibility: This 10 kVA step-down transformer is engineered to convert higher-voltage feeds to safe, standard 120V for IT gear, enabling you to run 120V devices directly from 208V or 240V distributions. It complements APC Smart-UPS systems to create a cohesive, scalable protection strategy for servers, storage, and network infrastructure. By matching load needs to precise voltage levels, it helps maximize uptime and energy efficiency while reducing the risk of equipment damage due to voltage irregularities.
  • Flexible outlet configuration for diverse racks: The unit provides two NEMA L5-20R outlets (125V, 20A) for common IT peripherals and two NEMA L14-30R outlets (125/250V, 30A) to support higher-demand devices or feed multiple devices across a rack. This dual-outlet arrangement enables clean cable management and centralized power distribution, simplifying staging and maintenance in data centers or edge deployments.
  • Rack-mount design for efficient space utilization: Engineered as a compact 4U, 19-inch rack-mount accessory, this transformer fits neatly into standard server racks without requiring additional floor space. Its sturdy enclosure and modular form factor support organized cabling, easier airflow management, and straightforward retrofits alongside existing UPS, PDUs, and IT hardware.
  • Voltage regulation and protection you can trust: By regulating incoming voltage and isolating sensitive equipment from surges and dips, the step-down transformer helps preserve uninterrupted operation and device longevity. When paired with Smart-UPS protection, it enhances overall power conditioning, reduces nuisance outages, and contributes to stable performance for critical workloads such as virtualization, databases, and collaboration platforms.
  • Ease of deployment and ongoing serviceability: Designed as a practical accessory for Smart-UPS systems, this transformer offers straightforward installation and routine maintenance. Its modular, rack-friendly form factor means you can add or relocate it as load profiles evolve, keeping your data center or edge environment agile while preserving centralized power governance and monitoring capabilities.

Technical Details of APC Smart-UPS SRT Step-Down Transformer, 10kVA, rackmount, 4U, 2x NEMA L5-20R & 2x NEMA L14-30R outlets

  • Model: APC Smart-UPS SRT Step-Down Transformer
  • Capacity: 10 kVA (step-down capability for 120V IT equipment from higher-voltage feeds)
  • Form factor: Rack-mount, 4U, 19-inch enclosure for standard data center racks
  • Outlets: 2x NEMA L5-20R and 2x NEMA L14-30R
  • Input/Output configuration: Designed to accept 208/240V input and provide 120V output for IT loads
  • Application: An accessory to tailor Smart-UPS protection and distribution in data centers, server rooms, and edge deployments

how to install APC Smart-UPS SRT Step-Down Transformer

Installing the APC Smart-UPS SRT Step-Down Transformer is a straightforward process that should be performed by qualified personnel following your organization’s safety protocols and local electrical codes. Use the following general guidance to plan a safe, efficient deployment:

  • Plan the rack layout: Identify a suitable 19-inch rack location with adequate clearance for air flow, access to outlets, and maintenance space. Confirm that the rack can accommodate a 4U height transformer and that there is a clear path for connecting both input and output cables.
  • Mount the transformer in the rack: Secure the 4U transformer into the designated rack space using the provided mounting hardware. Ensure the unit is level and firmly attached to prevent vibration and movement during operation or maintenance.
  • Connect the input supply: Connect the transformer’s input to the appropriate higher-voltage distribution (208V or 240V) using properly rated connectors and protective devices. Adhere to utility and electrical code requirements, including grounding and bonding practices.
  • Route and connect outputs: Connect the 120V loads to the two NEMA L5-20R and NEMA L14-30R outlets according to your load plan. Keep cables organized, label circuits, and avoid overloading individual outlets to maintain optimal performance and safety.
  • Integrate with the Smart-UPS: Ensure compatibility with your Smart-UPS model and connect the transformer as per APC installation guidelines so that protection, monitoring, and management features remain unified within the APC ecosystem.
  • Test and verify: Power up the system, verify voltage at the 120V outlets, check for proper grounding, and confirm that connected devices operate as expected. Monitor for any abnormal readings or fault indicators and perform routine inspections according to the manufacturer’s manual.

Frequently asked questions

  • Q: What is the primary purpose of the APC Smart-UPS SRT Step-Down Transformer?

    A: It serves as a voltage-matching accessory that steps down higher-voltage input (208V/240V) to 120V for IT equipment, enabling reliable power protection and distribution when paired with a Smart-UPS.

  • Q: How many outlets are on the transformer and what are their types?

    A: The unit provides four outlets in total: 2x NEMA L5-20R (120V, 20A) and 2x NEMA L14-30R (125/250V, 30A), offering flexible connections for different devices and loads.

  • Q: What rack space does it require?

    A: The transformer occupies 4U of rack height in a standard 19-inch rack, allowing efficient use of vertical space alongside other UPS, PDUs, and IT equipment.

  • Q: Is installation compatible with all Smart-UPS models?

    A: The transformer is designed as an accessory to tailor many Smart-UPS configurations. Always consult the specific Smart-UPS compatibility guide and installation documentation for your exact model and region.

  • Q: Does using this transformer affect overall reliability or warranty?

    A: When installed according to APC guidelines and integrated with a supported Smart-UPS system, the transformer enhances power conditioning and distribution, while preserving warranty coverage as specified by APC for properly installed accessories.

Shipping Notes
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  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 7333962135

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Lexington, US
★★★★★ 4
If the set screws were white the shelves would be perfect.
Color: C. White - Modern Minimalist Style, Number Of Shelves: 3, Size: 15.7inches
I'd give 4 1/2 if there was one. The shelves thwmself are nice I just don't like the visible little black set screws. The shelves themself look great and are not wobbly at all if you install correctly. I purposely installed the bracket upside down because of the little black setting screws; I didnt want them showing because the shelves are above eye level and the screws are black and I didn't want them showing. But that made the shelf lean amd wobbly so I turned them back over the way they are supposed to be and that made them level and sturdy. I guess I'll paint the little screws.
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Reviewed in the United States on January 21, 2026
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Chara Reed
Phoenix, US
★★★★★ 5
Perfect add to bathroom
Size: 24x6 2Pcs, Color: White
These are perfect. They are just as advertised. They are easy to hang and all needed materials come included (screws and different drywall hanging options).
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Reviewed in the United States on May 18, 2026
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breya fuentes
Draper, US
★★★★★ 5
Pink perfect and easy to mount
Super easy. Just mount the bracket with a small level and the shelf slides on perfect. And has screws to keep shelf from sliding off. Easy to Do and the pink was the perfect color
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Reviewed in the United States on April 29, 2026
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Rumor
Whiting, US
★★★★★ 4
Good quality, but a few issues with the hidden mounts and levelness.
Size: 35x7 2Pcs, Color: Black, Size: 35x7 2Pcs, Color: Black
These are quite nice and also sturdy. Only complaint I have is that I bought a couple of these, and on one of them, only one of them, it was difficult to get the hidden mounts to go into the holes. I think it was probably a manufacturing defect thing. Also, on that particular one, it wasnt as level as the other. Not a show stopper, but if you need a perfectly level type of mounting situation, I would be careful here.
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Reviewed in the United States on September 14, 2025
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NatKenneally
West Palm Beach, US
★★★★★ 5
Great value/easy to install.
Size: 24x6 2Pcs, Color: Black, Size: 24x6 2Pcs, Color: Black
Great product and great value. Easy to install and adds a nice touch to a bathroom.
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Reviewed in the United States on March 21, 2026

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