Eaton Tripp Lite SmartOnline 20kVA/kW 3-Phase Double-Conversion UPS (S3M20K-NIB) – Unity PF, No Internal Batteries, External Battery Required

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EatonSKU: S3M20K-NIB
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Sale price$6,575.99 Regular price$10,411.20
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Description

High-Efficiency, Space-Saving 3-Phase UPS for Critical Applications

The Eaton Tripp Lite SmartOnline S3M20K-NIB delivers 20kVA/kW of reliable, clean double-conversion power for mission-critical environments including banking, healthcare, education, government, and manufacturing. This compact UPS system supports continuous uptime and superior output quality through advanced IGBT rectifier and DSP control, all in the industry’s smallest 3-phase 208V footprint.

Battery Flexibility and Scalable Runtime

The S3M20K-NIB operates with external battery cabinets (sold separately), enabling flexible and expandable backup options tailored to your power needs. No internal batteries are included, allowing you to pair with compatible cabinets like BP240V09K, BP240V40/40L, BP240V65/65L, or BP240V100/100L.

Powerful Features and Intelligent Monitoring

With ENERGY STAR® 2.0 certification and up to 98% efficiency in ECO mode, the S3M20K-NIB significantly lowers energy and cooling costs. The five-inch color touchscreen provides real-time monitoring, while optional network cards and MODBUS ports offer remote management capability. Parallel configuration is supported for capacity expansion or redundancy.

Ideal for data centers, edge computing, and space-constrained environments.

Specification Details
Model S3M20K-NIB
Topology Double-Conversion Online (VFI)
Power Capacity 20kVA / 20kW (Unity Power Factor 1.0)
Input Voltage 208/220/120/127V AC 3-Phase
Output Voltage 208/220/120/127V AC 3-Phase
Efficiency Up to 94% (Online), Up to 98% (ECO mode)
Input THDi <2%
Output THDv ≤1%
Battery Type External VRLA (Not Included)
Compatible Battery Cabinets BP240V09K, BP240V40/40L, BP240V65/65L, BP240V100/100L
Parallel Capability Up to 4 Units (80kVA Max or N+N Redundancy)
Display 5” Color Touchscreen LCD, LED Indicators
Remote Monitoring Optional WEBCARDLXMINI, MODBUS (RS-485, USB, RS-232), SNMP, SSH
Certifications ENERGY STAR® 2.0, TAA Compliant
Emergency Power Off (REPO) Yes
Form Factor Tower
Dimensions (HxWxD) Approx. 41 x 13 x 33 in (actual may vary slightly)
Weight (without batteries) Approx. 220 lbs (actual may vary)
Warranty 2-Year Limited Warranty

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Return Policy (Short Summary)

We offer a 30-day return window for most unopened, factory-sealed items.

Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.


Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.


For damaged or incorrect items, please contact us immediately.


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