FeikteeySpec score 7.8
1000 VA, 800 Watts, tower, Online
+Tower form factor for desk or floor placement
+Pure sine wave output for sensitive electronics
+Online topology provides continuous conditioned power
$593.99
as of 11/04/2026 05:06 PST - DetailsProduct details
Spec score7.8
Pros+Tower form factor for desk or floor placement
+Pure sine wave output for sensitive electronics
+Online topology provides continuous conditioned power
Compared with the 509 UPS Battery Backups on this page+Online: the highest design of the 140 here
+Pure sine wave: only 90 of 509 here have one
−1000 va: 180 of the 241 here have a higher va
−800 watts: 134 of the 197 here have more watts
How pros and cons are picked (About: Disclaimer) About this product
VertivSpec score 7.8
20000 VA, Online
+Online double conversion topology for continuous power protection
+20 kVA capacity for larger server and network loads
+Rackable design fits standard equipment racks
$18,259.99
as of 11/04/2026 05:09 PST - DetailsProduct details
Spec score7.8
Pros+Online double conversion topology for continuous power protection
+20 kVA capacity for larger server and network loads
+Rackable design fits standard equipment racks
+Built-in 11U form factor for rack mounting
Compared with the 509 UPS Battery Backups on this page+Online: the highest design of the 140 here
+20000 va: the highest va of the 241 here
How pros and cons are picked (About: Disclaimer) APCSpec score 7.7
1500 VA, 900 Watts, Line interactive
+Sine wave output suits sensitive electronics
+Line interactive design regulates voltage without using battery power
+Rated at 1500 VA and 900 watts
$660.00
as of 11/04/2026 05:06 PST - DetailsProduct details
Spec score7.7
Pros+Sine wave output suits sensitive electronics
+Line interactive design regulates voltage without using battery power
+Rated at 1500 VA and 900 watts
+SmartConnect feature listed for monitoring the unit
Compared with the 509 UPS Battery Backups on this page+Pure sine wave: only 90 of 509 here have one
−Line interactive: 82 of the 140 here have a higher design
−900 watts: 99 of the 197 here have more watts
How pros and cons are picked (About: Disclaimer) About this product
EatonSpec score 7.7
1550 VA, 1100 Watts, rack, Line interactive
+Pure sine wave output for sensitive electronics
+Fits a 1U rack or mounts on a wall
+Line-interactive design regulates voltage without battery use
$284.99
as of 11/04/2026 11:08 PST - DetailsProduct details
Spec score7.7
Pros+Pure sine wave output for sensitive electronics
+Fits a 1U rack or mounts on a wall
+Line-interactive design regulates voltage without battery use
Compared with the 509 UPS Battery Backups on this page+Pure sine wave: only 90 of 509 here have one
+1100 watts: 121 of the 197 here have fewer watts
+1550 va: 136 of the 241 here have a lower va
−Line interactive: 82 of the 140 here have a higher design
How pros and cons are picked (About: Disclaimer) About this product
GenericSpec score 7.7
6889 VA, 6200 Watts, Online
+Includes maintenance bypass for servicing without downtime
+Online topology for continuous conditioned power
+Includes transformer and battery pack
$12,450.00
as of 11/04/2026 05:09 PST - DetailsProduct details
Spec score7.7
Pros+Includes maintenance bypass for servicing without downtime
+Online topology for continuous conditioned power
+Includes transformer and battery pack
Compared with the 509 UPS Battery Backups on this page+Online: the highest design of the 140 here
+6200 watts: only 19 of 197 here have more watts
+6889 va: only 45 of 241 here have a higher va
How pros and cons are picked (About: Disclaimer) About this product
PlpfudvdzzSpec score 7.7
6000 VA, 5400 Watts, Online
+6000VA capacity with 5400W output
+Online topology provides continuous power conditioning
+Battery runtime of 240 minutes
$8,597.12
as of 11/04/2026 05:09 PST - DetailsProduct details
Spec score7.7
Pros+6000VA capacity with 5400W output
+Online topology provides continuous power conditioning
+Battery runtime of 240 minutes
Compared with the 509 UPS Battery Backups on this page+Online: the highest design of the 140 here
+5400 watts: only 23 of 197 here have more watts
+6000 va: only 47 of 241 here have a higher va
How pros and cons are picked (About: Disclaimer) About this product
VertivSpec score 7.7
15000 VA, Online
+Online double conversion topology for continuous power protection
+15 kVA capacity for mid-sized server and network loads
+Rackable design fits standard equipment racks
$14,211.42
as of 11/04/2026 05:09 PST - DetailsProduct details
Spec score7.7
Pros+Online double conversion topology for continuous power protection
+15 kVA capacity for mid-sized server and network loads
+Rackable design fits standard equipment racks
+Built-in 11U form factor for rack mounting
Compared with the 509 UPS Battery Backups on this page+Online: the highest design of the 140 here
+15000 va: only 8 of 241 here have a higher va
How pros and cons are picked (About: Disclaimer) About this product
Ubiquiti NetworksSpec score 7.6
1000 Watts, rack, 8 Outlets
+Rackmountable 2U form for server racks
+Eight outlets for connecting several devices
+Supports automatic shutdown for connected equipment
$454.99
as of 11/04/2026 05:06 PST - DetailsProduct details
Spec score7.6
Pros+Rackmountable 2U form for server racks
+Eight outlets for connecting several devices
+Supports automatic shutdown for connected equipment
Compared with the 509 UPS Battery Backups on this page+Shutdown software: only 57 of 509 here have one
+1000 watts: 102 of the 197 here have fewer watts
How pros and cons are picked (About: Disclaimer) About this product
CyberPowerSpec score 7.6
1500 VA, 900 Watts, tower, 12 Outlets
+1500VA and 900W capacity for larger desktop setups
+Twelve outlets for many connected devices
+Automatic shutdown support for safe power-down during outages
$199.95
as of 11/04/2026 11:07 PST - DetailsProduct details
Spec score7.6
Pros+1500VA and 900W capacity for larger desktop setups
+Twelve outlets for many connected devices
+Automatic shutdown support for safe power-down during outages
+Tower form factor fits on a desk or floor
Compared with the 509 UPS Battery Backups on this page+12 outlets: only 2 of 98 here have more outlets
+Shutdown software: only 57 of 509 here have one
−900 watts: 99 of the 197 here have more watts
How pros and cons are picked (About: Disclaimer) About this product
EatonSpec score 7.6
5000 VA, 5000 Watts, rack, Online
+5000 VA and 5000 W capacity for mid-size loads
+Online double-conversion topology for continuous clean power
+Rack form factor for data center installation
$8,051.04
as of 11/04/2026 05:09 PST - DetailsProduct details
Spec score7.6
Pros+5000 VA and 5000 W capacity for mid-size loads
+Online double-conversion topology for continuous clean power
+Rack form factor for data center installation
+Six 5-20R outlets for multiple connected devices
Compared with the 509 UPS Battery Backups on this page+Online: the highest design of the 140 here
+5000 watts: only 30 of 197 here have more watts
+5000 va: 166 of the 241 here have a lower va
How pros and cons are picked (About: Disclaimer) About this product
GenericSpec score 7.6
10000 VA, Online
+10000VA capacity for large loads
+Online topology for continuous power
+Includes transformer and battery pack
$12,350.00
as of 11/04/2026 05:09 PST - DetailsProduct details
Spec score7.6
Pros+10000VA capacity for large loads
+Online topology for continuous power
+Includes transformer and battery pack
Compared with the 509 UPS Battery Backups on this page+Online: the highest design of the 140 here
+10000 va: only 17 of 241 here have a higher va
How pros and cons are picked (About: Disclaimer) About this product
GenericSpec score 7.6
5556 VA, 5000 Watts, Online
+Includes maintenance bypass for servicing without downtime
+Online topology for continuous conditioned power
+Includes transformer and battery pack
$10,865.00
as of 11/04/2026 05:09 PST - DetailsProduct details
Spec score7.6
Pros+Includes maintenance bypass for servicing without downtime
+Online topology for continuous conditioned power
+Includes transformer and battery pack
Compared with the 509 UPS Battery Backups on this page+Online: the highest design of the 140 here
+5000 watts: only 30 of 197 here have more watts
+5556 va: 177 of the 241 here have a lower va
How pros and cons are picked (About: Disclaimer) About this product
LvsedtalSpec score 7.6
10000 VA, 9000 Watts
+10 kVA and 9000 watt capacity for heavy loads
+Voltage stabilization for steady output power
+Extended runtime of 6 hours
$22,918.25
as of 11/04/2026 05:09 PST - DetailsProduct details
Spec score7.6
Pros+10 kVA and 9000 watt capacity for heavy loads
+Voltage stabilization for steady output power
+Extended runtime of 6 hours
Compared with the 509 UPS Battery Backups on this page+9000 watts: only 4 of 197 here have more watts
+10000 va: only 17 of 241 here have a higher va
How pros and cons are picked (About: Disclaimer) About this product
APCSpec score 7.5
1500 VA, 900 Watts, 10 Outlets
+Sine wave output for sensitive electronics
+10 outlets for multiple devices
+2 USB charger ports for phones and tablets
$437.98
as of 11/04/2026 05:09 PST - DetailsProduct details
Spec score7.5
Pros+Sine wave output for sensitive electronics
+10 outlets for multiple devices
+2 USB charger ports for phones and tablets
Compared with the 509 UPS Battery Backups on this page+10 outlets: only 9 of 98 here have more outlets
+Pure sine wave: only 90 of 509 here have one
−900 watts: 99 of the 197 here have more watts
How pros and cons are picked (About: Disclaimer) About this product
APCSpec score 7.5
1500 VA, 900 Watts, 6 Outlets
+Pure sine wave output for sensitive electronics
+Six outlets with two USB charger ports
+Automatic voltage regulation for stable power
$439.06
as of 11/04/2026 05:06 PST - DetailsProduct details
Spec score7.5
Pros+Pure sine wave output for sensitive electronics
+Six outlets with two USB charger ports
+Automatic voltage regulation for stable power
Compared with the 509 UPS Battery Backups on this page+Pure sine wave: only 90 of 509 here have one
−6 outlets: 68 of the 98 here have more outlets
−900 watts: 99 of the 197 here have more watts
How pros and cons are picked (About: Disclaimer) About this product
CyberPowerSpec score 7.5
1500 VA, 900 Watts, tower, 10 Outlets
+1500VA and 900W capacity for larger desktop setups
+Ten outlets for multiple connected devices
+Automatic shutdown support for safe power-down during outages
$219.95
as of 11/04/2026 11:07 PST - DetailsProduct details
Spec score7.5
Pros+1500VA and 900W capacity for larger desktop setups
+Ten outlets for multiple connected devices
+Automatic shutdown support for safe power-down during outages
+Tower form factor fits on a desk or floor
Compared with the 509 UPS Battery Backups on this page+10 outlets: only 9 of 98 here have more outlets
+Shutdown software: only 57 of 509 here have one
−900 watts: 99 of the 197 here have more watts
How pros and cons are picked (About: Disclaimer) About this product
Tripp LiteSpec score 7.5
1500 VA, 900 Watts, tower, 8 Outlets
+1500VA capacity for larger equipment loads
+Pure sine wave output for sensitive electronics
+900W output for substantial connected devices
$504.09
as of 11/04/2026 11:08 PST - DetailsProduct details
Spec score7.5
Pros+1500VA capacity for larger equipment loads
+Pure sine wave output for sensitive electronics
+900W output for substantial connected devices
+Eight outlets for multiple devices
+Replaceable battery extends service life
Compared with the 509 UPS Battery Backups on this page+Pure sine wave: only 90 of 509 here have one
−900 watts: 99 of the 197 here have more watts
How pros and cons are picked (About: Disclaimer) About this product
Tripp LiteSpec score 7.5
1500 VA, 1000 Watts, rack, 8 Outlets
+1500VA capacity for rack equipment
+Pure sine wave output for sensitive electronics
+1000W output for substantial rack loads
$800.39
as of 11/04/2026 11:08 PST - DetailsProduct details
Spec score7.5
Pros+1500VA capacity for rack equipment
+Pure sine wave output for sensitive electronics
+1000W output for substantial rack loads
+Eight outlets for multiple devices
+Replaceable battery extends service life
Compared with the 509 UPS Battery Backups on this page+Pure sine wave: only 90 of 509 here have one
+1000 watts: 102 of the 197 here have fewer watts
How pros and cons are picked (About: Disclaimer) About this product
RctcbrzvtwSpec score 7.3
1000 VA, 600 Watts, tower, Line interactive
+1000VA capacity with 600 watts of output power
+Tower form factor with built-in battery
+Line interactive design with AVR and surge protection
$499.18
as of 11/04/2026 11:08 PST - DetailsProduct details
Spec score7.3
Pros+1000VA capacity with 600 watts of output power
+Tower form factor with built-in battery
+Line interactive design with AVR and surge protection
Compared with the 509 UPS Battery Backups on this page−1000 va: 180 of the 241 here have a higher va
−600 watts: 146 of the 197 here have more watts
−Line interactive: 82 of the 140 here have a higher design
How pros and cons are picked (About: Disclaimer) About this product
RctcbrzvtwSpec score 7.3
1500 VA, 900 Watts, tower, Line interactive
+1500VA capacity with 900 watts of output power
+Tower form factor with built-in battery
+Line interactive design for voltage regulation
$1,559.93
as of 11/04/2026 11:08 PST - DetailsProduct details
Spec score7.3
Pros+1500VA capacity with 900 watts of output power
+Tower form factor with built-in battery
+Line interactive design for voltage regulation
Compared with the 509 UPS Battery Backups on this page−Line interactive: 82 of the 140 here have a higher design
−900 watts: 99 of the 197 here have more watts
How pros and cons are picked (About: Disclaimer) About this product
RctcbrzvtwSpec score 7.3
1500 VA, 1000 Watts, tower, Line interactive
+1500VA capacity with 1000 watts of output power
+Tower form factor with built-in battery
+Line interactive design for voltage regulation
$1,511.93
as of 11/04/2026 11:08 PST - DetailsProduct details
Spec score7.3
Pros+1500VA capacity with 1000 watts of output power
+Tower form factor with built-in battery
+Line interactive design for voltage regulation
Compared with the 509 UPS Battery Backups on this page+1000 watts: 102 of the 197 here have fewer watts
−Line interactive: 82 of the 140 here have a higher design
How pros and cons are picked (About: Disclaimer) About this product
LvsedtalSpec score 7.3
6000 VA, 5400 Watts
+6 kVA and 5400 watt capacity for larger loads
+Voltage stabilization for steady output power
+Backup power supply for server equipment
$11,198.40
as of 11/04/2026 05:09 PST - DetailsProduct details
Spec score7.3
Pros+6 kVA and 5400 watt capacity for larger loads
+Voltage stabilization for steady output power
+Backup power supply for server equipment
Compared with the 509 UPS Battery Backups on this page+5400 watts: only 23 of 197 here have more watts
+6000 va: only 47 of 241 here have a higher va
How pros and cons are picked (About: Disclaimer) About this product
LvsedtalSpec score 7.3
6000 VA, 5400 Watts
+6 kVA and 5400 watt capacity for larger loads
+Voltage stabilization for steady output power
+Extended runtime option for longer outages
$17,521.43
as of 11/04/2026 05:09 PST - DetailsProduct details
Spec score7.3
Pros+6 kVA and 5400 watt capacity for larger loads
+Voltage stabilization for steady output power
+Extended runtime option for longer outages
Compared with the 509 UPS Battery Backups on this page+5400 watts: only 23 of 197 here have more watts
+6000 va: only 47 of 241 here have a higher va
How pros and cons are picked (About: Disclaimer) About this product
Tripp LiteSpec score 7.3
5000 VA, 5000 Watts, rack
+5000VA capacity with 5000W output
+Rackmount design in a compact 2U height
+Includes step-down transformer
$999.95
as of 11/04/2026 11:08 PST - DetailsProduct details
Spec score7.3
Pros+5000VA capacity with 5000W output
+Rackmount design in a compact 2U height
+Includes step-down transformer
Compared with the 509 UPS Battery Backups on this page+5000 watts: only 30 of 197 here have more watts
+5000 va: 166 of the 241 here have a lower va
How pros and cons are picked (About: Disclaimer) About this product
APCSpec score 7.2
1500 VA, 900 Watts, 10 Outlets
+Ten UPS-backed outlets for multiple devices
+Includes automatic voltage regulation for stable power
+Surge protection for computers and electronics
$327.98
as of 11/04/2026 05:06 PST - DetailsProduct details
Spec score7.2
Pros+Ten UPS-backed outlets for multiple devices
+Includes automatic voltage regulation for stable power
+Surge protection for computers and electronics
Compared with the 509 UPS Battery Backups on this page+10 outlets: only 9 of 98 here have more outlets
−900 watts: 99 of the 197 here have more watts
How pros and cons are picked (About: Disclaimer) About this product
CyberPowerSpec score 7.2
1500 VA, 900 Watts, 8 Outlets
+1500VA and 900W capacity for larger desktop setups
+Rackable 2U design fits server racks
+Eight outlets for several connected devices
$505.95
as of 11/04/2026 11:07 PST - DetailsProduct details
Spec score7.2
Pros+1500VA and 900W capacity for larger desktop setups
+Rackable 2U design fits server racks
+Eight outlets for several connected devices
Compared with the 509 UPS Battery Backups on this page−900 watts: 99 of the 197 here have more watts
How pros and cons are picked (About: Disclaimer) About this product
LvsedtalSpec score 7.2
3000 VA, 3000 Watts
+3 kVA and 3000 watt capacity for mid-sized loads
+Voltage stabilization for steady output power
+Extended runtime option for longer outages
$8,040.53
as of 11/04/2026 05:09 PST - DetailsProduct details
Spec score7.2
Pros+3 kVA and 3000 watt capacity for mid-sized loads
+Voltage stabilization for steady output power
+Extended runtime option for longer outages
Compared with the 509 UPS Battery Backups on this page+3000 watts: 155 of the 197 here have fewer watts
+3000 va: 149 of the 241 here have a lower va
How pros and cons are picked (About: Disclaimer) About this product
Ske Smart Key EnergySpec score 7.2
1500 VA, 900 Watts, 10 Outlets
+1500VA and 900W capacity for desktop and network equipment
+Ten outlets for connecting several devices
+Built-in surge protection with battery backup
$185.99
as of 11/04/2026 11:08 PST - DetailsProduct details
Spec score7.2
Pros+1500VA and 900W capacity for desktop and network equipment
+Ten outlets for connecting several devices
+Built-in surge protection with battery backup
Compared with the 509 UPS Battery Backups on this page+10 outlets: only 9 of 98 here have more outlets
−900 watts: 99 of the 197 here have more watts
How pros and cons are picked (About: Disclaimer) About this product
1kVA Online UPS 800W Tower Pure Sine Wave Industrial Power Protection SPM1K
