3S UPS, 5-15P input, Outputs: (4) 5-15R, (4) 5-15R surge only - 3S550 - Eaton

3S UPS, 5-15P input, Outputs: (4) 5-15R, (4) 5-15R surge only - 3S550 - Eaton

The Eaton 3S delivers premium battery backup and surge protection for up to 10 home and office devices. EcoControl functionality provides up to 30 percent greater energy savings than typical battery backups, and plug-and-play compatibility enables automatic integration. The slim 3S fits neatly under a desk, in an entertainment center or on the wall.


Topology Standby with high frequency converter
Configuration Desktop mini tower
Part Number 3S550
Color Black
Rating (VA/Watts) 550/330
Diagnostics Full system self-test at power up
Dimensions (H x W x D, inches) 3.4 x 5.5 x 13.2
Weight (lbs) 7.3
Warranty Three-year factory warranty with online product registration
(Ships with the following items)
1 ready-to-go UPS
USB Cable
User Guide
Electrical Input
(1) NEMA 5-15P
Input Cord 6-foot line cord with 90° 5-15P
Input Voltage Range 89–151 Vac
Nominal Voltage 120
Frequency 50/60 Hz autoselect
Frequency Range 57–70 Hz for 50 Hz operation
57–70 Hz for 60 Hz operation
Power Draw of UPS 2.84A @120V
Electrical Output
Output Receptacles
(4) NEMA 5-15R
(4) NEMA 5-15R surge only
Over Current Protection Electronic current limit
On Utility Voltage Regulation 102–132 Vac
On Battery Voltage Regulation -10%, +6% of nominal
Power Factor 0.6
Efficiency (Normal Mode) >97%
Efficiency (on Battery) 75%
Frequency Regulation 0.1 Hz
Transfer Time 1–4 ms typical
Load Segments Two groups of two controlled outlets
Battery Type Sealed, lead-acid; maintenance free
Battery Replacement User replaceable batteries
Start On Battery Allows start of UPS without utility input
LEDs 1 status-indicating LED
USB Port As standard (HID)
Cables USB 6-foot communications cable included
Power Management Software Eaton UPS Companion: Provides safe system shutdown for SOHO, small business and residential users looking for an easy way to enhance the protection capabilities of their Eaton UPS
Environmental & Standards
Surge Protection ANSI C62.41 Category A (formerly IEEE 587)
Audible Noise < 50 dBA
Operating Temperature 0˚C (32˚F) to +40˚C (104˚F)
Safety Conformance UL 1778; UL497A; cUL
Safety markings UL; cUL, NOM
EMC Markings FCC Part 15 subpart B Class A
Storage Temperature 5˚F (-25˚C) to 122˚F (+50˚C)
Relative Humidity 20–93% non-condensing
Altitude Up to 10,000 ft (3000M) without de-rating


Catalogue des produits et des services
1953 kB
Eaton 3S Literature Brochure
249 kB
Eaton 3S UPS User's Guide
English (US)
4034 kB
More Information
On sale
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