Product comparison · 2 uninterruptible power supplies (upss)

FSP Eufo 1.1k vs FSP ST 850

38specifications compared
16differ
22identical
28known for one product only

Key differences

Output power capacity
- Eufo 1.1k:1.1 kVA
- ST 850:0.85 kVA
Output power
- Eufo 1.1k:990 W
- ST 850:510 W
Input operation voltage (min)
- Eufo 1.1k:162 V
- ST 850:81 V
Input operation voltage (max)
- Eufo 1.1k:290 V
- ST 850:270 V
Output operation voltage (min)
- Eufo 1.1k:208 V
- ST 850:110 V
Output voltage regulation
- Eufo 1.1k:1.5%
- ST 850:5%
Noise level
- Eufo 1.1k:45 dB
- ST 850:40 dB
AC outlet types
- Eufo 1.1k:C13 coupler
- ST 850:Type F

Side by side

Differences highlightedShow differences only

Comparison of Eufo 1.1k, ST 850
66 specifications	A FSP Eufo 1.1k View product	B FSP ST 850 View product
Features7 differ
Output power capacityDiffers	1.1 kVA	0.85 kVA
Output powerDiffers	990 W	510 W
Input operation voltage (min)Differs	162 V	81 V
Input operation voltage (max)Differs	290 V	270 V
Output operation voltage (min)Differs	208 V	110 V
Output voltage regulationDiffers	1.5%	5%
Automatic Voltage Regulation (AVR)Known for one	Yes	Unknown — not stated by the source
Response timeKnown for one	6 ms	Unknown — not stated by the source
Efficiency (ECO mode)Known for one	97%	Unknown — not stated by the source
Efficiency (Battery mode)Known for one	90%	Unknown — not stated by the source
Efficiency (Line Mode)Known for one	95%	Unknown — not stated by the source
Power factorKnown for one	0.99	Unknown — not stated by the source
Crest factorKnown for one	3:1	Unknown — not stated by the source
Emergency Power Off (EPO)Known for one	Yes	Unknown — not stated by the source
Total Harmonic Distortion (THD) (linear load)Known for one	2%	Unknown — not stated by the source
Total Harmonic Distortion (THD) (non-linear load)Known for one	5%	Unknown — not stated by the source
Noise levelDiffers	45 dB	40 dB
Detachable power cordKnown for one	Yes	Unknown — not stated by the source
Power protection featuresKnown for one	Unknown — not stated by the source	Battery discharge, Overcharge, Overload
Ports & interfaces2 differ
AC outlet typesDiffers	C13 coupler	Type F
Power plugKnown for one	C14 coupler	Unknown — not stated by the source
AC outlets quantityDiffers	8 AC outlet(s)	4 AC outlet(s)
Serial interfaceKnown for one	Yes	Unknown — not stated by the source
Serial interface typeKnown for one	RS-232	Unknown — not stated by the source
RS-232 portsKnown for one	1	Unknown — not stated by the source
Emergency Power Off (EPO) connectorKnown for one	Yes	Unknown — not stated by the source
SmartSlotKnown for one	Yes	Unknown — not stated by the source
Ethernet LAN (RJ-45) portsKnown for one	Unknown — not stated by the source	2
Battery2 differ
Number of battery cellsDiffers	2	1
Battery recharge timeDiffers	4 h	6.8 h
Battery recharge time(90%)Known for one	4 h	Unknown — not stated by the source
Charging currentKnown for one	1.5 A	Unknown — not stated by the source
Design1 differ
Form factorDiffers	Rackmount/Tower	Tower
Rack capacityKnown for one	2U	Unknown — not stated by the source
LED indicatorsKnown for one	Yes	Unknown — not stated by the source
Packaging contentidentical
Rack mount kitKnown for one	Yes	Unknown — not stated by the source
Cables includedKnown for one	Input power cable, USB cable	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	438 mm	99 mm
DepthDiffers	410 mm	288 mm
HeightDiffers	88 mm	280 mm
WeightDiffers	13.4 kg	7.6 kg
Packaging dataidentical
Software CDKnown for one	Yes	Unknown — not stated by the source
Other featuresidentical
Number of phasesKnown for one	1	Unknown — not stated by the source
Packaging contentKnown for one	UPS, user manual, software CD, EU cable, USB cable, tower stands, mounting ears & screws	Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

More uninterruptible power supplies (upss) comparisons

All uninterruptible power supplies (upss) comparisons