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In an online UPS, the batteries are always connected to the inverter, so that no power transfer switches are necessary. When power loss occurs, the rectifier simply drops out of the circuit and the batteries keep the power steady and unchanged. When power is restored, the rectifier resumes carrying most of the load and begins charging the batteries, though the charging current may be limited to prevent the high-power rectifier from overheating the batteries and boiling off the electrolyte. The main advantage of an on-line UPS is its ability to provide an "electrical firewall" between the incoming utility power and sensitive electronic equipment.
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Picture of SmartOnLine - UPS ( external ) - AC 120V
In stock
SKU: 32013103

Tripp Lite SU750XL SmartOnLine - UPS ( external ) - AC 120V

FREE SHIPPING
• Intelligent battery management
• High efficiency - Hot-swappable
• Double-Conversion UPS; Tower
• Network Card Options; USB; DB9
$460.95
 
Picture of SmartOnLine UPS ( external ) - AC 120 V
In stock
SKU: 32013105

Tripp Lite SU1000XLA SmartOnLine UPS ( external ) - AC 120 V

FREE SHIPPING
• Economy-mode; Audible alarm
• Double-Conversion UPS; Tower
• Steel Housing; Network Card Options
• Attractive all-black upright tower format
$501.61
 
Picture of SmartOnLine UPS ( rack-mountable ) - AC
In stock
SKU: 32013104

Tripp Lite SU750RTXL2U SmartOnLine UPS ( rack-mountable ) - AC

FREE SHIPPING
• Ideal for critical voice; data
• 2U Rack/Tower; Extended Run
• NEMA 5-15P input; 5-15R outlets
• Expandable runtime; Hot-swap batteries
$518.58
 
Picture of SmartOnLine 800W / 1000VA UPS - 2U Rack
In stock
SKU: 30878557

Tripp Lite SU1000RTXL2UA SmartOnLine 800W / 1000VA UPS - 2U Rack

FREE SHIPPING
• HID-compliant USB interface
• Built-in Emergency Power Off
• Intelligent battery management
• Load Management Receptacles
$555.43
 
Picture of 750VA / 675W LCD Online UPS - Tower/2U
In stock
SKU: 32030259

Tripp Lite SU750RTXLCD2U 750VA / 675W LCD Online UPS - Tower/2U

FREE SHIPPING
• 675W Double-Conversion UPS
• 2U - Rack/Tower; Extended Run
• Transformerless; IGBT technology
• Single line TEL Network surge suppression
$556.24
 
Picture of 1000VA / 900W SmartOnline UPS - Tower/RM
In stock
SKU: 32030282

Tripp Lite SU1000RTXLCD2U 1000VA / 900W SmartOnline UPS - Tower/RM

FREE SHIPPING
• PowerAlert Software with USB
• SmartOnline 120V 1kVA 900W
• 2 independently switched load banks
• Expandable runtime; Hot-swap batteries
$661.66
 
Picture of SmartOnLine UPS ( external ) - AC
In stock
SKU: 32013021

Tripp Lite SU1500XL SmartOnLine UPS ( external ) - AC

FREE SHIPPING
• Hot-swappable battery modules
• High efficiency economy mode option
• On-line double-conversion tower UPS
• Front panel status LEDs w/ detailed load
$669.36
 
Picture of SmartOnLine 1200W / 1500VA UPS - 2U Rack
In stock
SKU: 30878558

Tripp Lite SU1500RTXL2UA SmartOnLine 1200W / 1500VA UPS - 2U Rack

FREE SHIPPING
• Compact rackmount form factor
• Support for network card options
• Ships with all mounting accessories
• Expandable runtime; Hot-swap batteries
$706.23
 
Picture of SmartOnLine UPS ( external ) - AC
In stock
SKU: 32013064

Tripp Lite SU2200XLA SmartOnLine UPS ( external ) - AC

FREE SHIPPING
• Intelligent battery management
• PowerAlert Software and cabling
• Front panel status LEDs w/ detailed load
• On-line Double-Conversion UPS System
$844.84
 
Picture of 1500VA / 1350W SmartOnline UPS
In stock
SKU: 32030289

Tripp Lite SU1500RTXLCD2U 1500VA / 1350W SmartOnline UPS

FREE SHIPPING
• 2U Rack/Tower - LED display
• Transformerless; IGBT technology
• 2 independently switched load banks
• NEMA 5-15P input; 6 NEMA 5-15R outlets
$858.42
 
Picture of SmartOnLine 1600W / 2200VA UPS - 2U Rack
In stock
SKU: 30878559

Tripp Lite SU2200RTXL2UA SmartOnLine 1600W / 2200VA UPS - 2U Rack

FREE SHIPPING
• Built-in power management
• Double-Conversion UPS - 2U
• Optional economy mode setting
• 14 Half - 4.5 Full Load Runtime min.
$1,008.55
 
Picture of APC SMART-UPS - 1200 Watts / 1500
In stock
SKU: 32023263

APC SMX1500RM2UNC APC SMART-UPS - 1200 Watts / 1500

FREE SHIPPING
• Multiple switched outlet groups
• Plug-and-Play external batteries
• Energy meter - Cold-start capable
• Reduces utlility costs; generates less heat
$1,107.76 $1,096.18
 
Picture of 2.20kVA / 1.80kW SmartOnline Tower UPS
In stock
SKU: 32030276

Tripp Lite SU2200XLCD 2.20kVA / 1.80kW SmartOnline Tower UPS

FREE SHIPPING
• EMI/RFI Line Noise Filtering
• Double-Conversion UPS Tower
• Emergency Power Off Capability
• Reliable; Expandable Battery Backup
$1,111.97
 
Picture of 2.20kVA/1.80kW SmartOnline UPS -Tower/2U
In stock
SKU: 32030279

Tripp Lite SU2200RTXLCD2U 2.20kVA/1.80kW SmartOnline UPS -Tower/2U

FREE SHIPPING
• PowerAlert UPS monitoring software
• 2 independently switched load banks
• Intelligent battery management system
• Single line TEL/Network surge suppression
$1,193.77
 
Picture of SmartOnline 3000VA Tower/Rack Mountable
In stock
SKU: 32028245

Tripp Lite SU3000RTXL2U SmartOnline 3000VA Tower/Rack Mountable

FREE SHIPPING
• 2U - Rack/Tower
• Double-Conversion UPS
• Optional economy-mode operation
• Network grade AC surge suppression
$1,277.99
 
Picture of SmartOnLine UPS ( rack-mountable ) -
In stock
SKU: 30931477

Tripp Lite SU3000RTXL3U SmartOnLine UPS ( rack-mountable ) -

FREE SHIPPING
• Front panel status LEDs
• On-line double conversion
• 3000VA / 3kVA / 2400 watt
• UPS interface supports on-battery
$1,406.28
 
Picture of SmartOnLine High Power Density - UPS
In stock
SKU: 30916413

Tripp Lite SU3000RTXR3U SmartOnLine High Power Density - UPS

FREE SHIPPING
• Hot-swap battery modules
• Detailed load and battery metering
• On-line double-conversion 3U UPS
• Ships with all mounting accessories
$1,621.70 $1,616.35
 
Picture of SmartOnLine High Power Density - UPS (
In stock
SKU: 32013273

Tripp Lite SU5000RT4U SmartOnLine High Power Density - UPS (

FREE SHIPPING
• Full-time power conditioning
• Optional external battery packs
• Double-conversion UPS for server
• Includes PowerAlert monitoring software
$3,031.61
 
Picture of APC Smart-UPS On-Line, 3500 Watts /
In stock
SKU: 32023245

APC SURTD5000RMXLT3U APC Smart-UPS On-Line, 3500 Watts /

FREE SHIPPING
• RS-232
• 4 output
• 3U Rack Size
• Ethernet 10/100
$3,817.20
 
Picture of APC Smart-UPS On-Line, 4200 Watts /
In stock
SKU: 32023243

APC SURTD6000RMXLP3U APC Smart-UPS On-Line, 4200 Watts /

FREE SHIPPING
• 6 output
• 2x Batteries
• Height Rack 3U
• Rack-mountable
$4,696.58
 

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