Product comparison · 2 uninterruptible power supplies (upss)

APC Back-UPS RS 1200VA vs Vertiv Liebert PSI-XR 1920VA 120V

14specifications compared
11differ
3identical
20known for one product only

Key differences

Output power capacity
- Back-UPS RS 1200VA:1.2 kVA
- Liebert PSI-XR 1920VA 120V:1.92 kVA
Output power
- Back-UPS RS 1200VA:720 W
- Liebert PSI-XR 1920VA 120V:1920 W
Typical backup time at full load
- Back-UPS RS 1200VA:5.2 min
- Liebert PSI-XR 1920VA 120V:13 min
Typical backup time at half load
- Back-UPS RS 1200VA:18.1 min
- Liebert PSI-XR 1920VA 120V:5 min
Battery recharge time
- Back-UPS RS 1200VA:16 h
- Liebert PSI-XR 1920VA 120V:5 h
Storage temperature (T-T)
- Back-UPS RS 1200VA:0 - 40 °C
- Liebert PSI-XR 1920VA 120V:-15 - 40 °C
Weight
- Back-UPS RS 1200VA:13.5 kg
- Liebert PSI-XR 1920VA 120V:42 kg
Package weight
- Back-UPS RS 1200VA:13.9 kg
- Liebert PSI-XR 1920VA 120V:46 kg

Side by side

Differences highlightedShow differences only

Comparison of Back-UPS RS 1200VA, Liebert PSI-XR 1920VA 120V
34 specifications	A APC Back-UPS RS 1200VA View product	B Vertiv Liebert PSI-XR 1920VA 120V View product
Features2 differ
Output power capacityDiffers	1.2 kVA	1.92 kVA
Output powerDiffers	720 W	1920 W
Surge energy ratingKnown for one	Unknown — not stated by the source	570 J
Response timeKnown for one	Unknown — not stated by the source	4 ms
Emergency Power Off (EPO)Known for one	Yes	Unknown — not stated by the source
Audible alarm(s)Known for one	Yes	Unknown — not stated by the source
Battery3 differ
Battery technologyKnown for one	Unknown — not stated by the source	Sealed Lead Acid (VRLA)
Typical backup time at full loadDiffers	5.2 min	13 min
Typical backup time at half loadDiffers	18.1 min	5 min
Battery recharge timeDiffers	16 h	5 h
Hot-swap batteryKnown for one	No	Unknown — not stated by the source
Replacement battery cartridgeKnown for one	APCRBC109	Unknown — not stated by the source
Designidentical
Product colour	Black	Black
Cable lengthKnown for one	Unknown — not stated by the source	3 m
Operational conditions1 differ
Operating temperature (T-T)	0 - 40 °C	0 - 40 °C
Storage temperature (T-T)Differs	0 - 40 °C	-15 - 40 °C
Operating altitude	0 - 3000 m	0 - 3000 m
Operating relative humidity (H-H)Known for one	0 - 95%	Unknown — not stated by the source
Storage relative humidity (H-H)Known for one	5 - 95%	Unknown — not stated by the source
Safety regulation & standardsidentical
SafetyKnown for one	Unknown — not stated by the source	UL 1778, c-UL Listed
Certificatesidentical
CertificationKnown for one	Unknown — not stated by the source	FCC Part 15, Class A, UL 497 B, ISTA Procedure 1A
Weight & dimensions1 differ
WeightDiffers	13.5 kg	42 kg
Packaging data1 differ
Package weightDiffers	13.9 kg	46 kg
Other features3 differ
Output connectionsKnown for one	Unknown — not stated by the source	4x NEMA 5-15R 2x NEMA 5-20R
Input connection typeDiffers	IEC 320 C13	NEMA 5-20P
Dimensions (WxDxH)Differs	133 x 356 x 222 mm	440 x 700.5 x 88 mm
Operating temperature (T-T)Known for one	Unknown — not stated by the source	32 - 104 °F
Output voltage noteKnown for one	Unknown — not stated by the source	110/120/127
Package dimensions (WxDxH)Differs	248 x 457 x 305 mm	560 x 884 x 228 mm
Dimensions (W x D x H) (imperial)Known for one	Unknown — not stated by the source	439.4 x 701 x 88.9 mm (17.3 x 27.6 x 3.5")
Weight (imperial)Known for one	Unknown — not stated by the source	41.7 kg (92 lbs)
Mac compatibilityKnown for one	No	Unknown — not stated by the source
Nominal input voltageKnown for one	230 V	Unknown — not stated by the source
Nominal output voltageKnown for one	230 V	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.

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