Vertiv AS4B0NCYGNNXLKB 10kVA Scalable UPS System
Overview
The Vertiv AS4B0NCYGNNXLKB is a 10kVA / 9.0kW online UPS designed for facilities that need headroom to grow without ripping out infrastructure. Starting at 10kVA and scalable to 20kVA / 18.0kW within the same frame, this system suits data closets, edge deployments, and distributed critical power nodes where future load growth is a certainty, not a possibility. Hardwire input (L-L-G) and hardwire output — with optional POD expansion — make it a fit for permanent, rack-integrated or floor-mounted commercial power installations rather than plug-in desktop applications.
Runtime at full 10kVA / 9.0kW load is 21 minutes, which is enough for a controlled shutdown or generator transfer in most facility scenarios. Drop to half load (4.5kW) and that extends to 51 minutes — practical coverage for brief utility outages without generator support. If your load profile is mixed or partially redundant, the half-load figure is often the more operationally relevant number to plan against.
Key Features
- 10kVA / 9.0kW Starting Capacity: enough to carry a dense edge rack or a mid-tier server room pod, with 9.0kW of real power delivery. At a 0.9 power factor, there is minimal gap between VA and watt ratings — relevant when sizing against actual server nameplate wattage.
- Scalable to 20kVA / 18.0kW N+1: the AS4B0NCYGNNXLKB supports expansion to double its initial capacity within the same product family. This means your power infrastructure can grow in step with load additions rather than requiring a forklift replacement when the next wave of equipment arrives.
- N+1 Redundancy Architecture: the 20kVA / 18.0kW scalability ceiling supports an N+1 configuration — meaning one additional module provides fault tolerance without requiring a parallel standalone UPS. For any environment running 24/7 workloads where a single power failure is unacceptable, this is the architectural feature to anchor your design on.
- 21-Minute Full-Load Runtime: at 10kVA / 9.0kW, 21 minutes is sufficient for generator start sequences in most facilities (typical diesel cold-start is 10–30 seconds, with transfer inside 60 seconds), plus a safety buffer for extended transfer delays or generator faults.
- 51-Minute Half-Load Runtime: at 4.5kW draw, runtime nearly triples. If your deployed load runs closer to 50% of capacity — common in over-provisioned or staggered-start environments — this is the number that governs your actual ride-through time.
- Hardwire Input (L-L-G): line-to-line-to-ground hardwire input means this is an electrician-installed unit, not a plug-and-play solution. That also means it integrates cleanly into dedicated circuit panels without occupying floor-PDU receptacles — appropriate for permanent critical power installations.
- Hardwire Output with Optional PODs: hardwire output keeps the installation clean and code-compliant for permanent loads. Optional Power Distribution (POD) modules add receptacle-based outlet distribution downstream when mixed outlet types are needed — giving you flexibility at the load side without compromising the upstream hardwire architecture.
Integration and Compatibility
The AS4B0NCYGNNXLKB sits within a broader Vertiv APS family spanning 5kVA through 20kVA, all sharing the same hardwire input/output topology and optional POD ecosystem. This consistency matters when standardizing across multiple sites or expanding an existing deployment — the operational model, wiring approach, and accessory ecosystem carry over. Models in the same family with lower runtime (the AS4B0NCVGNNXLKB at 5-minute full-load) are available when battery cost is the primary constraint and generator coverage is confirmed. Models with higher base capacity (AS4C and AS4D series) cover 15kVA and 20kVA starting points for larger rooms or higher-density deployments.
For installations with mixed critical and non-critical loads, pairing this UPS with a downstream power distribution unit allows selective protection — keeping the UPS load budget focused on what actually requires battery backup. Integrators building out structured rack environments should review the broader Vertiv power and cooling catalog for compatible PDUs, monitoring cards, and environmental sensors that integrate with this platform. Those planning multi-rack or data center edge buildouts will benefit from reviewing a UPS selection guide to match runtime curves against generator transfer SLAs before committing to a battery configuration. Critical power infrastructure planning at the facility level — particularly where N+1 is a design requirement — should account for the full scalability path this unit supports.
Frequently Asked Questions
Q: What is the full-load runtime of the AS4B0NCYGNNXLKB at 10kVA?
A: At full load (10kVA / 9.0kW), the AS4B0NCYGNNXLKB delivers 21 minutes of runtime. At half load (approximately 4.5kW), runtime extends to 51 minutes.
Q: Can the AS4B0NCYGNNXLKB scale beyond 10kVA without replacing the unit?
A: Yes. The AS4B0NCYGNNXLKB is scalable to 20kVA / 18.0kW within the same product family, supporting N+1 redundancy configurations as load requirements grow.
Q: What type of input connection does the AS4B0NCYGNNXLKB require?
A: The AS4B0NCYGNNXLKB uses hardwire (L-L-G) input. This is a permanently wired installation requiring a licensed electrician — it is not a plug-in appliance.
Q: What output options are available on the AS4B0NCYGNNXLKB?
A: Output is hardwire, with optional POD (Power Output Distribution) modules available for installations that require downstream receptacle-based distribution in addition to hardwired loads.
Q: How does the AS4B0NCYGNNXLKB differ from the AS4B0NCVGNNXLKB?
A: Both models share the same 10kVA / 9.0kW capacity and 20kVA scalability ceiling. The key difference is battery configuration: the AS4B0NCYGNNXLKB provides 21-minute full-load / 51-minute half-load runtime, while the AS4B0NCVGNNXLKB provides only 5-minute full-load / 15-minute half-load runtime — appropriate when generator transfer times are very short and battery cost is a constraint.
Q: Is the AS4B0NCYGNNXLKB appropriate for a single-phase or three-phase installation?
A: The hardwire L-L-G input configuration indicates a single-phase hardwire installation (line-line-ground). Confirm wiring compatibility with your facility electrician before procurement.
The spec that drives most purchasing decisions on the AS4B0NCYGNNXLKB is the 21-minute full-load runtime at 10kVA / 9.0kW — that is the number that tells you whether this unit buys enough time for your generator to transfer and stabilize before protected loads go dark. In most commercial and light-industrial facilities with diesel backup, that window is more than sufficient. What distinguishes this SKU from its sibling AS4B0NCVGNNXLKB is exactly that battery configuration: four extra minutes versus sixteen minutes of additional ride-through at full load is not a minor difference when your SLA depends on it.
Technical Highlights:
- 21-min / 51-min Runtime Curve: the contrast between full-load and half-load runtime (21 vs. 51 minutes) is sharp — if your operational load consistently runs below 50% of the 9.0kW ceiling, you are effectively getting a much longer runtime buffer than the nameplate suggests. Size the load realistically, not at peak theoretical draw.
- 20kVA / 18.0kW Scalability Ceiling: starting at 10kVA with room to double within the same platform means capital expenditure aligns with actual load rather than requiring a worst-case procurement upfront. The N+1 architecture at the 20kVA ceiling is the key reliability argument for any 24/7 environment.
- Hardwire L-L-G Input/Output: permanent wiring on both sides eliminates the reliability risks of plug-based connections under sustained load — relevant in environments where vibration, heat cycling, or high continuous draw would stress receptacle contacts over time.
Deployment Considerations:
- The hardwire requirement on both input and output means procurement and installation must be coordinated with a licensed electrician before the unit arrives on site — panel capacity, conduit routing, and L-L-G wiring availability should be confirmed during the pre-sales phase, not at install time.
- Optional POD modules expand the output to include receptacle-based distribution, but those are add-ons — if your load inventory includes a significant number of standard-plug devices, confirm POD availability and compatibility before finalizing the BOM.
The AS4B0NCYGNNXLKB is the right specification for a permanent edge data room or distributed IDF closet where loads are expected to grow over a 3–5 year window, generator transfer is confirmed but not instantaneous, and the installation is being built to last — not to be replaced at the next capacity review.
