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Tripp Lite 3U rackmount UPS, dark metal chassis, front panel with status indicators and ports

Tripp Lite

Tripp Lite SMART1548ET 1500VA 1200W 48V DC UPS 3U

SKU CH-27WR-X0JS7 MPN SMART1548ET

Extreme-temperature 1500 VA 1200 W UPS operates from -40 °C to 80 °C with 48 V DC input and 120 V AC output

  • International Version120V
  • VA Rating1500 VA
  • Watts1200W
  • Output Voltage120V
  • Output Frequency50 / 60 Hz
  • AlarmsAudible alarm reports Battery mode operation, Battery low st
  • Operates reliably from -40 °C to 80 °C
  • 1500 VA / 1200 W supports critical industrial loads
  • 474 J surge rating shields against transients
  • DB9, USB and SNMP slot enable remote management
  • 3U rackmount with hardwire terminals fits standard cabinets

Industrial power protection

The Tripp Lite SMART1548ET is a 1500VA 1200W uninterruptible power supply built for 48V DC environments. It delivers 120V output at 50 / 60 Hz and protects connected equipment against blackouts, brownouts, overvoltages, surges and line noise. The unit is rated for continuous operation in remote locations where ambient temperatures range from -40°C to 80°C.

Thermal resilience and alerts

Rated for extreme temperatures from -40°C to 80°C, the UPS operates without active cooling assumptions in the supplied data. An audible alarm signals battery mode, low battery, overload and UPS fault conditions. Surge energy rating is 474 Joules. Hardwire AC input and output connections support permanent installation in industrial and traffic networks.

Rack integration and management

The 3U rackmount chassis measures 5.24" x 15.75" x 9.45" and weighs 32.41 lbs. Management interfaces include DB9 serial, a USB port and an expansion slot for an SNMP or Web card. The package includes an external battery connection kit, battery temperature sensor cable, USB cable, external fan power adapter cable, hardwire strain reliefs and mounting screws for 3U racks.

Highlights

  • Operates reliably from -40 °C to 80 °C
  • 1500 VA / 1200 W supports critical industrial loads
  • 474 J surge rating shields against transients
  • DB9, USB and SNMP slot enable remote management
  • 3U rackmount with hardwire terminals fits standard cabinets

Specifications

BrandTRIPP LITE
ModelSMART1548ET
International Version120V
VA Rating1500 VA
Watts1200W
Output Voltage120V
Output Frequency50 / 60 Hz
AlarmsAudible alarm reports Battery mode operation, Battery low status, Overload and UPS Fault conditions
Interface PortDB9 Serial; Slot for SNMP/Web interface; USB
Rackmountable3U
Surge Energy Rating474 Joules
FeaturesRecommended for remote locations where temperatures range within -40°C and 80°C
Protects equipment against blackouts, brownouts, overvoltages, surges and line noise
Keeps power running during blackouts to allow time for safe system shutdown
Maintains continuous 120V nominal output during brownouts and overvoltages
Optional WEBCARDLXMINI network interface supports Auto Probe feature
Dimensions5.24" x 15.75" x 9.45"
Weight32.41 lbs.
Package ContentsSMART1548ET Extreme Temperature Network UPS
External battery connection kit
Battery temperature sensor cable
USB cable
External fan power adapter cable
(2) AC hardwire strain reliefs
(8) M4 screws
(4) M6 screws
(2) Rack-mounting brackets
Instruction sheet
Owner's manual
Shipping weight14.79 kg
Package size587 × 389 × 244 mm

Questions about this item

How do I install the hardwired AC connections and what step is commonly missed?

Mount the 3U unit in a rack using the supplied M4 and M6 screws, then attach the two AC hardwire strain reliefs to secure the input and output conductors; the step often missed is fitting both strain reliefs before tightening the wiring terminals.

Which maintenance items will need replacement during the life of this 48V DC UPS?

The internal battery modules will require periodic replacement; the external battery connection kit and battery temperature sensor cable support extended runtime packs, and the external fan power adapter cable should be inspected for wear in high-temperature environments.

What limit appears first when this UPS runs continuously at full 1200W load in extreme heat?

The internal battery temperature will reach its operational ceiling before the 474 joule surge rating or the 1500 VA capacity are exceeded, especially when ambient conditions approach the 80°C upper limit.

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