SKU: 21163219820

Vertiv Liebert EXS V-Model UPS tower 20kVA/20kW 208/120VAC(220/127VAC) 3-Phase 4 Wire|Top Fan w/ SNMP|Run Time 13 min (EXSV-20KXRTN)

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Description

Vertiv Liebert EXS V-Model UPS tower 20kVA/20kW 208/120VAC(220/127VAC) 3-Phase 4 Wire|Top Fan w/ SNMP|Run Time 13 min (EXSV-20KXRTN)The Vertiv Liebert EXS V Model (EXSV 20KXRTN) is a compact, monolithic online UPS designed to deliver reliable, clean power for critical IT infrastructure. Built around true online, double conversion technology, it continuously conditions and regulates output voltage to protect servers, networking equipment, and data storage from power disturbances. With a 20 kVA 20 kW rating and 3 phase, 4 wire input output, the EXS V Model is engineered to meet

The Vertiv Liebert EXS V-Model (EXSV-20KXRTN) is a compact, monolithic online UPS designed to deliver reliable, clean power for critical IT infrastructure. Built around true online, double-conversion technology, it continuously conditions and regulates output voltage to protect servers, networking equipment, and data storage from power disturbances. With a 20 kVA / 20 kW rating and 3-phase, 4-wire input/output, the EXS V-Model is engineered to meet demanding load profiles in data centers, telecom rooms, and network closets while occupying a compact footprint suitable for space-constrained environments. The integrated top-fan cooling improves reliability in hot environments, and its SNMP capability enables seamless remote management and proactive monitoring.

  • Unmatched power protection with online double-conversion: The EXS V-Model delivers a continuous, clean sine-wave output regardless of input disturbances, ensuring consistent performance for sensitive IT equipment and minimizing data loss during outages.
  • 20 kVA / 20 kW capacity in a compact monolithic design: A robust, space-efficient solution that supports growth and consolidates critical loads without compromising protection or efficiency.
  • 3-Phase, 4-Wire configuration at 208/120 VAC (220/127 VAC): Flexible utility compatibility for modern data centers, with options to match regional power standards and IT equipment requirements.
  • Top-fan cooling and remote monitoring capabilities: Superior thermal management keeps the unit operating at peak performance, while SNMP and network connectivity enable proactive maintenance and fast issue resolution.
  • 13-minute runtime: A practical runtime to bridge short outages and safeguard servers and network gear during power events, allowing orderly shutdowns or seamless switchover to backup generation where available.

Technical Details of Vertiv Liebert EXS V-Model UPS

  • Model: EXSV-20KXRTN
  • Topology: True online, double-conversion (monolithic UPS)
  • Power Rating: 20 kVA / 20 kW
  • Input/Output Voltage: 208/120 VAC (with 220/127 VAC tolerance), 3-Phase, 4-Wire
  • Output Waveform: Pure sine wave
  • Cooling: Top Fan cooling for efficient heat dissipation
  • Monitoring: SNMP capable (network management for remote monitoring and alerts)
  • Runtime (Run Time): Approximately 13 minutes (specific runtime depends on load)
  • Protection Features: Input surge protection, short-circuit protection, overload protection, and automatic bypass capability
  • Form Factor: Compact monolithic design suitable for space-constrained environments
  • Efficiency: High-efficiency operation to reduce energy costs and cooling requirements

How to install Vertiv Liebert EXS V-Model UPS

Careful installation is essential to maximize reliability and protection. The Vertiv Liebert EXS V-Model should be placed on a level, vibration-free surface with adequate clearance for cooling and maintenance. Before installation, confirm that the service area meets the electrical, environmental, and safety requirements outlined in the user manual. The following guidelines help ensure a smooth deployment:

Step-by-step guidance:

  • Site readiness: Ensure the installation location provides structural support for the unit’s weight, proper ventilation, and access for maintenance. Maintain ambient temperatures within the recommended range and keep the area free of dust and obstructions.
  • Electrical connections: Connect the three-phase, four-wire input to the appropriate power source, ensuring correct voltage and phase alignment. Use correctly rated cables and secure all connections to prevent impedance-related issues.
  • Load assessment and distribution: Map critical loads to the UPS output and verify that total connected load does not exceed the 20 kW rating. Consider future expansion and implement proper load balancing to optimize performance.
  • Cabling and grounding: Route output cables to IT equipment with attention to separation from EMI sources. Ground the UPS per local codes and the manufacturer’s recommendations to ensure safety and performance.
  • SNMP and network configuration: Install the SNMP management module if not pre-installed, then configure IP addressing, community strings, and alert thresholds to enable remote monitoring and proactive maintenance.
  • Commissioning and testing: Power up the system with a slow ramp, verify alarm indicators, perform a functional test by simulating a power outage, and confirm seamless transfer to an auxiliary power path or battery reserve as designed.
  • Documentation and maintenance planning: Record serial numbers, firmware versions, and configuration settings. Establish a preventive maintenance schedule to maximize uptime and extend service life.

When installed correctly, the Vertiv Liebert EXS V-Model delivers dependable power quality, preventing disturbances like sags, swells, and outages from propagating to critical IT equipment. Its modular design, robust protection features, and remote monitoring capabilities enable IT teams to manage risk, improve uptime, and simplify disaster recovery planning. For data centers and networks with demanding workloads, the EXSV-20KXRTN offers a scalable, reliable, and efficient power solution that aligns with modern IT architectures and energy-conscious operations.

Frequently asked questions

  • Q: What loads is the EXSV-20KXRTN best suited for?

    A: The EXSV-20KXRTN is ideal for mid-range data centers, server rooms, and network closets that require robust 3-phase online UPS protection for mission-critical servers, storage devices, and network equipment.

  • Q: What does 3-Phase 4-Wire mean for my installation?

    A: 3-phase 4-wire means the UPS connects to a three-phase electrical supply with a neutral conductor, supporting balanced loading and compatibility with typical large IT loads and building power systems.

  • Q: How does SNMP monitoring benefit my operation?

    A: SNMP enables remote health monitoring, alerts, and performance data collection, allowing IT teams to respond quickly to outages, plan maintenance, and optimize energy usage without on-site visits.

  • Q: What is the runtime and how does it impact downtime?

    A: The EXSV-20KXRTN provides approximately 13 minutes of runtime, which is designed to bridge short outages and allow orderly shutdowns or seamless switchover to backup power when available, reducing the risk of data loss.

  • Q: Can I expand the system as my needs grow?

    A: Yes. The Liebert EXS V-Model is engineered for scalability, with options for additional battery back-ups and integration with larger power architectures to accommodate increasing loads while maintaining protection.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • 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: 21163219820

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4.4 ★★★★★
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EMILEE LASOSKI
New York, US
★★★★★ 5
Gentle Yet Effective—Perfect for Redness and Sensitive Skin
I’ve been really impressed with this Anua Azelaic Acid serum—it’s one of those products that feels gentle but still delivers noticeable results. The formula is lightweight and absorbs quickly, leaving no sticky or heavy feeling behind, which makes it easy to layer with the rest of my skincare. What stands out most is how soothing it is. The 10% azelaic acid helps calm redness and irritation while still being mild enough for sensitive skin. Combined with multiple types of hyaluronic acid, it keeps my skin hydrated and balanced instead of dry or tight.  Over time, I noticed my skin tone looking more even and less inflamed, especially in areas prone to breakouts or redness. It’s a great option if you want something that targets multiple concerns—like texture, redness, and hydration—without being too harsh. Overall, this is a fantastic serum for anyone dealing with sensitive or reactive skin. It’s effective, easy to use, and feels like a high-quality addition to a daily routine. I’ll definitely keep repurchasing.
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Reviewed in the United States on March 25, 2026
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Verified Purchase
Vanessa
Chelsea, US
★★★★★ 5
Totally worth it!!
So I have combination skin with a tendency toward closed comedones and I decided to try this product because I heard that azelaic acid helps with closed comedones. Honestly, I didn’t have very high expectations because my closed comedones have been very stubborn. I was already using the COSRX BHA before introducing this product, but it worked very slowly, so I wasn’t really getting the results I wanted from that product alone. Let me tell you that once I introduced this product, I finally started seeing the results I was looking for. I have noticed that my closed comedones have been resolving way faster than when I was only using the BHA and my skin also feels softer and overall looks healthier. I also want to mention that even though I don’t get inflamed breakouts very often, when I do get one, I feel like this product helps it calm down and go away much faster. I did start incorporating it slowly, and I highly recommend that anyone who wants to start using this product do the same and not rush into using it every day right away. Despite that, I personally haven’t had any issues with irritation at all and I actually find it very soothing, but you always need to be careful when adding new actives to your routine. I am currently using this product 4-5 days a week, once a day, and on the days I do not use it, I use my BHA instead. I also find that this product lasts a long time, since you only need like five drops for the entire face and the consistency is very watery. I’ve been using it for around two months, and there is still plenty left. Overall, I really recommend this product because it has helped me a lot, and while I am not sure if this alone would be enough to treat closed comedones, I would definitely say it is a great complement to other treatments.
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Reviewed in the United States on January 27, 2026
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Verified Purchase
Heidi Reimer
Dallas, US
★★★★★ 5
Changed my skin in 5 days
This stuff transformed my skin in 5 days! I’ve had issues with random breakouts and redness ever since I turned 40 and have had difficulty finding a product that actually helps those issues. I incorporated this product into my daily routine for the last 5 days and my skin is clear, moisturized, super soft and redness/breakout free. I use this after washing my face and applying toner; I use just enough to cover my face as a little goes a long way. It has a very loose, almost oily consistency but spreads easily and doesn’t make your skin feel greasy at all. Once it’s absorbed into my skin, I apply my moisturizer. I would definitely recommend this to anyone with skin redness and dryness, it’s a game changer!
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Reviewed in the United States on May 15, 2026
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Verified Purchase
Kathryn Magendie
Port Orchard, US
★★★★★ 5
I think this will help my rosacea redness!
Update: after using this 2 months, I will be reordering. The rosacea redness to my cheeks and nose have drastically reduced. I use it every other day. I tried a routine of on alternating mornings using vitamin c one day and this Anua azelaic acid the next. Cleanse, tone, azelaic acid, and then whatever I'm doing next (including SPF if I'm going outside). I don't use it at night, preferring a different routine with actives at night. I don't use the hypochlorous acid on my face very often at all now so the Anua is doing the work of hydrating and helping calm my skin. Note that I have aging skin that likely could be prone to dryness but I am meticulous about my skincare so my skin isn't dry - so though they advertise it's for blemish-prone skin, I use it for rosacea redness, and alternating plus hydrating before and after azelaic acid is what works for my skin. ------ The first time I tried this over my entire face, it made my face immediately red so I considered returning it. However, I had used other serums and thought maybe it was just too much at once for my rosacea-prone skin, and that I used too much as well. (I will add that I did a small patch test along my jawbone and let that absorb for hours - always do a patch test of an unfamiliar product!) After a couple of days, I tried it again, and I am impressed! This time, I hadn't used my tretinoin the night before - since I just went up in strength, my skin has been reactive. This time I cleansed my face using Thayer's milk cleanser, which is very soothing, and in fact is one of the only non-Korean beauty products in my skincare routine. Then I used my TirTir milky toner. I waited 5-10 minutes, then I applied just a little bit of this Anua Azelaic Acid over my entire face. I was very surprised that there was no burning or irritation. And also surprised that a few minutes later some of the redness on my cheeks were calmed down--nothing earthshaking but there was a slight difference. I let that absorb/sit for about 10 minutes and then I applied my Cosrx ceramide booster serum, which is very hydrating, and after letting that absorb for 5 or 10 minutes, I applied my Cosrx snail music to further hydrate. I'll be applying another moisturizer to seal it all in. I tried it again the next day and had similar results - again, not using my tret the night before or the C the same morning. This likely, at least at first, won't be a part of my daily routine as I think it could be too strong for my skin along with the other actives I use. For example, I won't use it when I apply my vitamin C until I lower the strength or until my skin is used to the azelaic acid, and I definitely wouldn't use it right before or right after tretinoin. I will do as they suggest and at first use it maybe 2x a week, so on weekends when I don't use my tretinoin or vitamin c, I will use this Anua azelaic acid. After doing this for a couple weeks, I may experiment and start using it more often --perhaps alternating this and my vitamin c since my vitamin c is really strong. As well I may consider lowering my vitamin c strength, and go back to the lower strength tret. (Update: I was out of town so I took a 4-day break from tret and vitamin c and tried this every morning after toning with hypochlorous acid (I let the HA dry completely first), and this didn't irritate my skin at all, and in fact, helped the redness. I am going to find a way to add it to my routine maybe by alternating days using this and vitamin c.) This is fragrance free, which is a must for me. The consistency is thin but not overly watery - glides on easily. I bought mine on Spring Sale so I'm happy about that. I will also add that I use Metrocream, and hypochlorous acid spray (Prequel) on my skin a few times a week and that helps the redness as well. It's an experimental process to find what will be right for my rosacea and aging skin. I am hoping with regular use my redness will calm even more as I hate the flushing across my cheeks and nose that I've dealt with for many years. I'm hopeful!
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Reviewed in the United States on April 4, 2026
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Verified Purchase
shadow
Charlottesville, US
★★★★★ 4
Works Great but the price is rising!
Anua Azelaic Acid is a very good serum. Both my daughter and I use it regularly. My daughter has severe rosacea, and this has helped calm her skin significantly her redness is almost gone. For me, it has also made a noticeable difference by reducing redness and giving my skin a healthy glow. We both use it at night, and it’s definitely very soothing and calming. The formula is gentle, lightweight, and works really well for sensitive skin without causing irritation. However, the only downside is the price, it seems to have increased quite a bit recently, which is concerning. I bought a couple during Amazon Prime Day, which worked out really well. For a relatively simple azelaic acid serum, the price increase feels a bit steep. If the price continues to rise, I may need to look for a more budget-friendly alternative. Otherwise, it’s a really great serum that delivers great results.
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Reviewed in the United States on March 30, 2026

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