Modular UPS comparison: capacity, N+1 and buying checks.
Compare source-listed modular UPS systems across brands, then check the installed modules, usable capacity and service requirements behind each offer. The table preserves each exact model identifier and its original evidence.
89 source records · Snapshot retrieved · 10–1,000 kW minimum tested configurations
Go to the specification table ↓ · N+1 example ↓ · Buying checklist ↓What is a modular UPS?
A modular UPS uses multiple modules within a system; the quoted configuration determines capacity and expansion options. N+1 means one more unit or module than the load requires. A modular label alone does not establish that spare capacity. Here, inclusion means the ENERGY STAR source marks the record as modular.
Sources: Eaton: Modular UPS technology ↗ · Eaton: UPS sizing and N+1 redundancy ↗ · ENERGY STAR: AC-output UPS reporting fields ↗
Modular UPS specification table
kW and kVA describe the minimum tested configuration. Input voltage is source text, not a compatibility recommendation. Open a model to compare output voltage, frequency and efficiency test details. Some identifiers contain brackets or wildcards describing a model family; they are not necessarily orderable SKUs. Select up to four records for a closer comparison.
On a narrow screen, scroll the table sideways to see capacity, voltage and source columns.
| Compare | Brand / exact model | kW | kVA | Input voltage (V) | Modular | Evidence |
|---|---|---|---|---|---|---|
| Delta RT-10K3P Record 2376192 | 10 | 10 | 380-415 | Yes | Source ↗ | |
| Delta RT-10K3P Record 2376193 | 10 | 10 | 380-415 | Yes | Source ↗ | |
| Delta RT-10K3P Record 2376194 | 10 | 10 | 380-415 | Yes | Source ↗ | |
| Delta RT-10K3P Record 2376195 | 10 | 10 | 380-415 | Yes | Source ↗ | |
| Liebert 47SA040A[0|1|2|3][C|Y][0|F|H|M|G|L][0|1] Record 2335122 | 10 | 10 | 176-253 | Yes | Source ↗ | |
| Liebert 56S(c1)(d1)A(f)(g)(h)(i)(j) Record 3815199 | 10 | 10 | 208-220 | Yes | Source ↗ | |
| Liebert 56S(c1)(d1)J(f)(g)(h)(i)(j) Record 3815228 | 10 | 10 | 208-220 | Yes | Source ↗ | |
| Vertiv 47SA040A[0|1|2|3][C|Y][0|F|H|M|G|L][0|1] Record 2335121 | 10 | 10 | 176-253 | Yes | Source ↗ | |
| Vertiv 56S(c1)(d1)A(f)(g)(h)(i)(j) Record 3815200 | 10 | 10 | 208-220 | Yes | Source ↗ | |
| Vertiv 56S(c1)(d1)J(f)(g)(h)(i)(j) Record 3815229 | 10 | 10 | 208-220 | Yes | Source ↗ | |
| Delta DPH-105K-LV Record 2354255 | 15 | 15 | 120-127 | Yes | Source ↗ | |
| Delta DPH-60K-LV Record 2354254 | 15 | 15 | 120-127 | Yes | Source ↗ | |
| Liebert 53*15J* * * * * * * Record 2668207 | 15 | 15 | 208-220 | Yes | Source ↗ | |
| Liebert ITA2-15KRT208C Record 3477708 | 15 | 15 | 208-220 | Yes | Source ↗ | |
| Vertiv 53*15J* * * * * * * Record 2668090 | 15 | 15 | 208-220 | Yes | Source ↗ | |
| Vertiv ITA2-15KRT208C Record 3477762 | 15 | 15 | 208-220 | Yes | Source ↗ | |
| Liebert 53*20J* * * * * * * Record 2668212 | 20 | 20 | 208-220 | Yes | Source ↗ | |
| Liebert 56S(c2)(d2)C(f)(g)(h)(i)(j) Record 3815209 | 20 | 20 | 380-415 | Yes | Source ↗ | |
| Liebert 56S(c2)(d2)P(f)(g)(h)(i)(j) Record 3815206 | 20 | 20 | 380-415 | Yes | Source ↗ | |
| Liebert 56S(c3)(d2)C(f)(g)(h)(i)(j) Record 3815210 | 20 | 20 | 480-480 | Yes | Source ↗ | |
| Liebert 56S(c3)(d2)P(f)(g)(h)(i)(j) Record 3815212 | 20 | 20 | 480-480 | Yes | Source ↗ | |
| Liebert ITA2-20KRT208C Record 3477704 | 20 | 20 | 208-220 | Yes | Source ↗ | |
| Liebert ITA2-20KRT208C Record 3477710 | 20 | 20 | 208-220 | Yes | Source ↗ | |
| UPSONIC UPS UPSONIC UTX+ 208VAC Record 2407035 | 20 | 20 | 120-208 | Yes | Source ↗ | |
| Vertiv 53*20J* * * * * * * Record 2668213 | 20 | 20 | 208-220 | Yes | Source ↗ | |
| Vertiv 56S(c2)(d2)C(f)(g)(h)(i)(j) Record 3815207 | 20 | 20 | 380-415 | Yes | Source ↗ | |
| Vertiv 56S(c2)(d2)P(f)(g)(h)(i)(j) Record 3815208 | 20 | 20 | 380-415 | Yes | Source ↗ | |
| Vertiv 56S(c3)(d2)C(f)(g)(h)(i)(j) Record 3815213 | 20 | 20 | 480-480 | Yes | Source ↗ | |
| Vertiv 56S(c3)(d2)P(f)(g)(h)(i)(j) Record 3815211 | 20 | 20 | 480-480 | Yes | Source ↗ | |
| Vertiv ITA2-20KRT208C Record 3477770 | 20 | 20 | 208-220 | Yes | Source ↗ | |
| Liebert 51SA030QAA Record 2335932 | 30 | 30 | 480-480 | Yes | Source ↗ | |
| Liebert 51SA030QBA Record 2335936 | 30 | 30 | 480-480 | Yes | Source ↗ | |
| Liebert 53*30J* * * * * * * Record 2668086 | 30 | 30 | 208-220 | Yes | Source ↗ | |
| Vertiv 51SA030QAA Record 2335933 | 30 | 30 | 480-480 | Yes | Source ↗ | |
| Vertiv 51SA030QBA Record 2335937 | 30 | 30 | 480-480 | Yes | Source ↗ | |
| Vertiv 53*30J* * * * * * * Record 2668087 | 30 | 30 | 208-220 | Yes | Source ↗ | |
| Liebert 51SA160AQA Record 2335946 | 40 | 40 | 480-480 | Yes | Source ↗ | |
| Liebert 51SA160ARA Record 2335934 | 40 | 40 | 480-480 | Yes | Source ↗ | |
| Liebert ITA2-40KRT400C Record 3477705 | 40 | 40 | 380-415 | Yes | Source ↗ | |
| Vertiv 51SA160AQA Record 2335947 | 40 | 40 | 480-480 | Yes | Source ↗ | |
| Vertiv 51SA160ARA Record 2335935 | 40 | 40 | 480-480 | Yes | Source ↗ | |
| Vertiv 53*40J* * * * * * * Record 2668088 | 40 | 40 | 208-220 | Yes | Source ↗ | |
| Vertiv ITA2-40KRT400C Record 3477771 | 40 | 40 | 380-415 | Yes | Source ↗ | |
| Delta DPH-150K-HV Record 2376721 | 50 | 50 | 480-480 | Yes | Source ↗ | |
| Delta DPH-300K-HV Record 2376696 | 50 | 50 | 480-480 | Yes | Source ↗ | |
| Liebert 51SA050BAA Record 2335462 | 50 | 50 | 480-480 | Yes | Source ↗ | |
| Vertiv 51SA050BAA Record 2335463 | 50 | 50 | 480-480 | Yes | Source ↗ | |
| Liebert 47SA100A[0|1|2|3][C|Y][0|F|H|M|G|L][0|1] Record 2335263 | 60 | 60 | 176-253 | Yes | Source ↗ | |
| Liebert 56S(c1)(d3)J(f)N(h)(i)(j) Record 3722635 | 60 | 60 | 208-220 | Yes | Source ↗ | |
| Liebert 56S(c1)(d3)R(f)N(h)(i)(j) Record 3722633 | 60 | 60 | 208-220 | Yes | Source ↗ | |
| Liebert 56S(c2)(d4)J(f)N(h)(i)(j) Record 3722631 | 60 | 60 | 380-415 | Yes | Source ↗ | |
| Liebert 56S(c2)(d4)X(f)N(h)(i)(j) Record 3722628 | 60 | 60 | 380-415 | Yes | Source ↗ | |
| Liebert 56S(c2)(d5)J(f)N(h)(i)(j) Record 4511302 | 60 | 60 | 380-415 | Yes | Source ↗ | |
| Liebert 56S(c2)(d5)J(f)NN(i)(j) Record 3845214 | 60 | 60 | 380-415 | Yes | Source ↗ | |
| Liebert 56S(c3)(d4)J(f)N(h)(i)(j) Record 3798687 | 60 | 60 | 480-480 | Yes | Source ↗ | |
| Liebert 56S(c3)(d4)X(f)N(h)(i)(j) Record 3798686 | 60 | 60 | 480-480 | Yes | Source ↗ | |
| Liebert 56S(c3)(d5)J(f)N(h)(i)(j) Record 4511304 | 60 | 60 | 480-480 | Yes | Source ↗ | |
| Liebert 56S(c3)(d5)J(f)N(h)(i)(j) Record 4512357 | 60 | 60 | 480-480 | Yes | Source ↗ | |
| Liebert 56S(c3)(d5)J(f)NN(i)(j) Record 3845247 | 60 | 60 | 480-480 | Yes | Source ↗ | |
| Vertiv 47SA100A[0|1|2|3][C|Y][0|F|H|M|G|L][0|1] Record 2335264 | 60 | 60 | 176-253 | Yes | Source ↗ | |
| Vertiv 56S(c1)(d3)J(f)N(h)(i)(j) Record 3722632 | 60 | 60 | 208-220 | Yes | Source ↗ | |
| Vertiv 56S(c1)(d3)R(f)N(h)(i)(j) Record 3722634 | 60 | 60 | 208-220 | Yes | Source ↗ | |
| Vertiv 56S(c2)(d4)J(f)N(h)(i)(j) Record 3722630 | 60 | 60 | 380-415 | Yes | Source ↗ | |
| Vertiv 56S(c2)(d4)X(f)N(h)(i)(j) Record 3722629 | 60 | 60 | 380-415 | Yes | Source ↗ | |
| Vertiv 56S(c2)(d5)J(f)N(h)(i)(j) Record 4511303 | 60 | 60 | 380-415 | Yes | Source ↗ | |
| Vertiv 56S(c2)(d5)J(f)NN(i)(j) Record 3848854 | 60 | 60 | 380-415 | Yes | Source ↗ | |
| Vertiv 56S(c3)(d4)J(f)N(h)(i)(j) Record 3798685 | 60 | 60 | 480-480 | Yes | Source ↗ | |
| Vertiv 56S(c3)(d4)X(f)N(h)(i)(j) Record 3798688 | 60 | 60 | 480-480 | Yes | Source ↗ | |
| Vertiv 56S(c3)(d5)J(f)N(h)(i)(j) Record 4511644 | 60 | 60 | 480-480 | Yes | Source ↗ | |
| Vertiv 56S(c3)(d5)J(f)N(h)(i)(j) Record 4512356 | 60 | 60 | 480-480 | Yes | Source ↗ | |
| Vertiv 56S(c3)(d5)J(f)NN(i)(j) Record 3845248 | 60 | 60 | 480-480 | Yes | Source ↗ | |
| Liebert 47SA120A[0|1|2|3][C|Y][0|F|H|M|G|L][0|1] Record 2335388 | 120 | 120 | 208-220 | Yes | Source ↗ | |
| Vertiv 47SA120A[0|1|2|3][C|Y][0|F|H|M|G|L][0|1] Record 2335389 | 120 | 120 | 208-220 | Yes | Source ↗ | |
| NEUROPOWER GALLEON PRO III 180KS Record 4519482 | 180 | 180 | 240-415 | Yes | Source ↗ | |
| Delta DPH-500K-HV Record 2387659 | 200 | 200 | 480-480 | Yes | Source ↗ | |
| Liebert 51SA200LAA Record 2335466 | 200 | 200 | 480-480 | Yes | Source ↗ | |
| Schneider Electric GVL200K500DS Record 2381572 | 200 | 200 | 380-480 | Yes | Source ↗ | |
| Schneider Electric GVL300K500DS Record 2381964 | 200 | 200 | 380-480 | Yes | Source ↗ | |
| Schneider Electric GVL400K500DS Record 2381570 | 200 | 200 | 380-480 | Yes | Source ↗ | |
| Schneider Electric GVL500KDS Record 2384013 | 200 | 200 | 380-480 | Yes | Source ↗ | |
| Vertiv 51SA200LAA Record 2335467 | 200 | 200 | 480-480 | Yes | Source ↗ | |
| Delta DPH-250K-HV Record 3360624 | 250 | 250 | 480-480 | Yes | Source ↗ | |
| Liebert 51SA250NAA Record 2335464 | 250 | 250 | 480-480 | Yes | Source ↗ | |
| Vertiv 51SA250NAA Record 2335465 | 250 | 250 | 480-480 | Yes | Source ↗ | |
| Vertiv 9000 0250kMK16FN0200 Record 4480893 | 250 | 250 | 415-415 | Yes | Source ↗ | |
| Vertiv 9000 1250kMK16FN0200 Record 4480892 | 250 | 250 | 415-415 | Yes | Source ↗ | |
| Vertiv P901B01ACBNEBD140100 Record 3999012 | 250 | 250 | 480-480 | Yes | Source ↗ | |
| Vertiv P902501ACBNEBD140100 Record 3999013 | 250 | 250 | 480-480 | Yes | Source ↗ | |
| Fuji Electric UPS7400WX-T3U/1000 Record 2339232 | 1,000 | 1,000 | 336-528 | Yes | Source ↗ |
Worked example: modular capacity is not the same as N+1
Assume identical 25 kW modules. Four installed modules total 100 kW; losing one leaves 75 kW. The same hardware can have spare module capacity at a 60 kW load and no spare module at a 90 kW load.
This is hypothetical kW arithmetic. kVA limits, derating, controls, shared components and the specified failure event still need engineering review. It is not approval for an actual installation.
| Load | Installed modules | Installed kW | kW after one is unavailable | Module-capacity check |
|---|---|---|---|---|
| 60 kW | 3 | 75 kW | 50 kW | Insufficient remaining kW |
| 60 kW | 4 | 100 kW | 75 kW | One extra module by kW arithmetic |
| 90 kW | 4 | 100 kW | 75 kW | Insufficient remaining kW |
Evidence to request for a modular UPS quotation
Use the same questions for each bidder. This is an editorial purchasing checklist; it does not assign a preferred brand or replace the project specification.
| Claim or requirement | Request in writing | What the catalog establishes |
|---|---|---|
| Capacity and growth | Installed module count, commissioned kW/kVA and frame limit | Minimum tested kW/kVA only |
| N+1 redundancy | Remaining capacity for the specified module outage at your load | Modular designation; no approved N+1 design |
| Service without load interruption | Exact component, approved procedure and required operating state | No verified hot-swap or no-outage service capability |
| Bypass and shared components | System diagram and the outcome of each agreed failure or service event | No complete site or system architecture |
| Operating cost | Efficiency curve for the quoted configuration, mode and expected load | Source-reported test points on each record page |
| Installed price and availability | Itemized UPS, battery, installation, startup and service quotation | No live stock, lead time or price |
Check shared components and the tested configuration
Eaton’s regional 93PM documentation describes power modules with a common static bypass. That is one architecture example, not a claim about every modular system or US availability. Request the diagram for the exact equipment being offered.
ENERGY STAR reports minimum and maximum tested configurations separately. This catalog uses the minimum tested output. A model family’s higher headline capacity, empty module slots or a different tested configuration must not be substituted for the supplied system’s ratings.
Sources: Eaton 93PM: Modularity and resiliency (New Zealand) ↗ · ENERGY STAR: AC-output UPS reporting fields ↗
Sources for the buying checks
- Eaton: Modular UPS technology ↗Checked 2026-10-23
- Eaton: UPS sizing and N+1 redundancy ↗Checked 2026-10-23
- Eaton 93PM: Modularity and resiliency (New Zealand) ↗Checked 2026-10-23
- ENERGY STAR: AC-output UPS reporting fields ↗Checked 2026-10-23
Turn research into a purchasing brief
Open candidate records to save them to your shortlist. Include your load, voltage, runtime requirement and service scope when requesting a quotation.
Build your purchasing brief ↗ · Refine the full catalog ↗ · Sources & limitations ↗