Vertiv AL6C0NHWGNNXLKB 15KVA/13.5KW Modular Hot-Swappable UPS

Overview

The Vertiv AL6C0NHWGNNXLKB is a 15KVA/13.5KW modular uninterruptible power supply designed for data centers, network closets, and mission-critical infrastructure where planned maintenance windows are not an option. Operating on 208/120VAC with 4-wire (L-L-N-G) wiring, this unit scales to 20kVA/18kW in an N+1 configuration — giving facilities engineers room to grow capacity without replacing the chassis. The hot-swappable power module architecture means a failed module can be pulled and replaced under load, eliminating the forced shutdown that older monolithic UPS designs require.

At 443 lbs and 38 inches tall in a standard 17-inch wide, 34-inch deep footprint, this is a rack-integrated unit built for permanent installation in 19-inch or purpose-built enclosures. The 8-minute runtime at full rated load provides the bridge time needed for automatic generator transfer or a controlled shutdown sequence — the right sizing for facilities that run generator backup rather than relying on battery alone for extended outages.

Key Features

• Hot-Swappable Power Modules: Pull and replace a failed power module while the system stays online and load-connected. For 24/7 operations — surveillance NVR rooms, network operations centers, call centers — this eliminates the maintenance window that a standard UPS would require. No graceful shutdown, no service disruption scheduling.
• N+1 Scalability to 20kVA/18kW: The AL6C0NHWGNNXLKB ships at 15KVA/13.5KW but the chassis supports N+1 redundancy up to 20kVA/18kW. Add a module as your load grows rather than procuring a larger unit. This matters when you're deploying in phases — commission now, scale when the second rack fills up.
• Up to 92% Efficiency: At 92% efficiency, heat dissipation and operating costs are meaningfully lower than older transformer-based designs running in the 85–88% range. On a 15KW load running continuously, the difference between 88% and 92% efficiency is roughly 600W of wasted heat — that's real cooling load and real electricity cost at the meter.
• 208/120VAC Input and Output: Native 208/120VAC dual-voltage output on a 4-wire (L-L-N-G) feed covers both standard 120V branch circuits and 208V single-phase loads from a single unit. Mixed server and networking environments drawing from both voltage tiers won't need a separate step-down transformer or a second UPS.
• 8-Minute Runtime at Rated Load: Eight minutes is enough runtime to allow an automatic transfer switch to confirm generator availability and pick up load — the standard design assumption for generator-backed data facilities. If you need longer runtime for a generator-free site, plan for external battery cabinets or a different capacity tier.
• Operating Temperature Range 0°C to 40°C (32°F to 104°F): Covers standard conditioned data center and network room environments. The 40°C ceiling is not uncommon for UPS equipment, but verify your ambient doesn't spike above this during summer HVAC cycles — performance and battery life both degrade above the rated ceiling.
• Compact 17-inch Wide, 34-inch Deep Chassis: The 17-inch width fits a standard 19-inch rack bay with minimal side clearance. The 34-inch depth is mid-range for this power class — confirm your rack depth before ordering, as some open-frame racks and shorter enclosed cabinets run 28–30 inches and will not accommodate this unit without overhang.

Integration and Compatibility

The 208/120VAC 4-wire output topology is compatible with the standard North American data center power distribution architecture. The N+1 modular design integrates with Vertiv's Vertiv power and thermal management ecosystem, and the hot-swap capability is purpose-built for environments managing enterprise UPS infrastructure under uptime SLAs. Facilities running mixed 120V and 208V loads — including IP surveillance recorders, PoE switches, and server infrastructure — can consolidate onto a single UPS circuit rather than splitting across multiple smaller units. For power protection planning, the N+1 architecture pairs naturally with a generator transfer switch on the input feed, making this unit the battery bridge in a layered resilience design rather than a long-duration standalone power source.

Frequently Asked Questions

Q: What is the maximum power capacity of the AL6C0NHWGNNXLKB in an N+1 configuration?

A: In N+1 configuration, the AL6C0NHWGNNXLKB scales to 20kVA/18kW. The base unit ships at 15KVA/13.5KW, and additional power modules can be added within the chassis to reach the N+1 ceiling without replacing the frame.

Q: Can power modules be replaced while the AL6C0NHWGNNXLKB is under load?

A: Yes. The hot-swappable power module design allows a failed or degraded module to be removed and replaced while the unit remains online and powering connected loads. This is the primary operational advantage of this architecture over traditional monolithic UPS designs.

Q: What wiring configuration does the AL6C0NHWGNNXLKB require?

A: The unit requires a 4-wire input: Line-Line-Neutral-Ground (L-L-N-G). Input and output voltage are both 208/120VAC. Confirm your facility's panel and PDU wiring matches this topology before installation.

Q: How long will the AL6C0NHWGNNXLKB run on battery at full rated load?

A: The specified runtime is approximately 8 minutes at full rated load. This is engineered to bridge the gap while a standby generator starts and transfers — not to serve as a long-duration power source. Sites without generator backup should evaluate external battery cabinet options for extended runtime.

Q: What are the physical installation requirements for the AL6C0NHWGNNXLKB?

A: The unit is 38 inches tall, 17 inches wide, and 34 inches deep, weighing 443 lbs. It requires a rack or enclosure with at least 34 inches of usable depth and appropriate structural load capacity. Verify floor loading and rack depth before deployment — the 443 lb weight requires reinforced flooring in many raised-floor data center environments.

Q: What is the operating temperature range for the AL6C0NHWGNNXLKB?

A: The rated operating temperature is 0°C to 40°C (32°F to 104°F). Installation environments must maintain ambient temperatures within this range. Exceeding 40°C ambient will affect both efficiency and battery service life.

Ted Perry

The AL6C0NHWGNNXLKB earns its place in mission-critical power designs specifically because of the hot-swap module architecture — when a power module fails at 2am in a live data center, the difference between swapping it under load and scheduling a maintenance window is enormous. At 92% efficiency across a 15KW load, this unit also runs cooler and cheaper than the older transformer-based Liebert designs it typically replaces, which matters when you're trying to reduce HVAC load in a space-constrained IDF or MDF room.

Technical Highlights:

• N+1 to 20kVA/18kW: The modular chassis grows with the deployment — commission it at 15KVA today, slide in an additional module when the second rack fills. No forklift upgrade, no new chassis, no recabling the PDU feed.
• 92% Efficiency: At this power class, 92% efficiency vs. a typical 88% transformer design saves roughly 600W in heat at full load — measurable on the cooling bill and on the CRAC unit's duty cycle in a small room.
• 8-Minute Runtime: Sized for generator-backed sites. The 8-minute figure covers generator start, ATS confirmation, and load transfer with margin — that's the correct design assumption for a co-located rack room with a standby diesel on a 10-second start sequence.

Deployment Considerations:

• At 443 lbs, this unit requires a structural floor loading review before rack placement — raised-floor tiles in older data centers often rate to 1,000–2,000 lbs per tile, and a 443 lb UPS on a single pair of tiles plus a loaded 42U rack can exceed that. Put the UPS weight in your floor loading calculation before the riggers show up.
• The 34-inch depth is the constraining dimension — many enclosed rack cabinets, especially older 1000mm-depth units, will not fit this without the door removed or a deeper cabinet. Measure before ordering.

This unit is the right fit for a generator-backed enterprise network room or surveillance infrastructure core where hot-swap serviceability and dual-voltage (208V/120V) output coverage matter more than extended battery-only runtime. It is not the right choice for a site running without generator backup that needs 30+ minutes of battery autonomy.