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Tall rectangular UPS cabinet in dark finish with front panel display and ventilation grilles

Vertiv

Vertiv Liebert AL4D0NHXGNNXLKB UPS 20kVA 18kW 208VAC in 208/120VAC out 8min Li-Ion

SKU CH-YJZN-Q8PWP MPN AL4D0NHXGNNXLKB

A 20 kVA double-conversion UPS with lithium-ion battery delivers 18 kW output at 208/120 VAC and provides eight minutes of runtime at full load

  • Voltage version208 V
  • AC input voltage200/208/220/230/240 VAC
  • Input line frequency40 Hz to 70 Hz auto-sensing
  • Power input3-Wire (L-L-G)
  • Volt-ampere rating20kVA
  • Power rating18 kW

Model AL4D0NHXGNNXLKB

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  • 20 kVA and 18 kW capacity supports critical three-phase loads
  • Lithium-ion battery delivers 8 minutes runtime at full load and 17 minutes at half load
  • Hot-swappable power, battery and control modules enable maintenance without system interruption
  • Wide input range from 200 to 240 VAC with 40 to 70 Hz auto-sensing tolerates unstable mains
  • Double-conversion online topology provides 208/120 VAC output with user-configurable 50/60 Hz frequency

Vertiv Liebert 20kVA UPS

The Vertiv Liebert AL4D0NHXGNNXLKB is a double-conversion online UPS rated at 20kVA and 18kW. It uses lithium-ion batteries to deliver eight minutes of runtime at full load or seventeen minutes at half load. The unit accepts three-wire 208VAC input and provides 208/120VAC split-phase output for rack or tower installations.

Check your incoming power and space

Verify that the facility supplies 200, 208, 220, 230 or 240 VAC on a three-wire L-L-G service and that the breaker can handle the 20kVA rating. Confirm the floor can support 704 lbs and that the 49 by 17 by 34 inch footprint fits the intended rack or floor area with adequate clearance for hot-swappable module access.

Thermal limits and acoustic profile

The UPS operates between 32 and 104 degrees Fahrenheit with humidity up to 95 percent non-condensing. Double-conversion topology and lithium-ion chemistry keep internal temperatures stable during normal operation. Fan speed scales with load, so noise rises under full load but remains within typical data-centre expectations for a 20kVA system.

How it compares

Measured against everything we stock in Uninterruptible Power Supplies (UPS), at today’s prices. Recalculated every night.

Price $41,516.99
Pricier than about 99% of the 1,153 comparable items (median $948.99).

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Specifications

Product
Brand nameVertiv
Product lineLiebert
Model nameAL4D0NHXGNNXLKB
Power
Voltage version208 V
AC input voltage200/208/220/230/240 VAC
Input line frequency40 Hz to 70 Hz auto-sensing
Power input3-Wire (L-L-G)
Volt-ampere rating20kVA
Power rating18 kW
AC output frequency60 Hz default; 50/60 Hz user-configurable
Battery typeLithium Ion
Runtime on batteryFull Load: 8 mins.
Half Load: 17 mins.
Size & build
Product dimensions49 in × 17 in × 34 in
Product weight704 lb (319 kg)
Shipping weight319.33 kg
Package size1245 × 1245 × 432 mm
Environment & compliance
Temperature rangeOperating temperature: 32 °F - 104 °F (0 °C - 40 °C)
Humidity range0–95%, non-condensing

Other versions of this model

5 more in the same range

Questions about this item

Does the unit ship with input cords, output receptacles or network cards, or do I need to order them separately?

The UPS is supplied as a 20 kVA / 18 kW double-conversion module with hot-swappable power, battery and control sections; input and output wiring, rack rails and any communication cards are ordered as accessories.

How do I decide between the 208 V international version and other voltage models for my 208 V three-phase service?

This model is the 208 V international version with a 3-wire L-L-G input accepting 200/208/220/230/240 VAC; choose it when the facility provides 208 V three-phase and you need 208/120 VAC split-phase output.

What does the 8-minute runtime at full load mean for a typical server rack drawing 18 kW?

At the full 18 kW rating the lithium-ion battery provides 8 minutes of backup; at half load (approximately 9 kW) the runtime extends to 17 minutes, giving time for graceful shutdown or generator start.

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