PER1101+Li 1000VA lithium ion UPS 2U rack mount with LiFePO4

2U Lithium UPS | 1000VA/1000W | 48VDC | 1-20A Charging | BMS

SKU: PER1101+Li Category:

Prostar PER1101+Li is a 1000VA/1000W lithium ion UPS. It has 2U rack-mount form factor, integrated LiFePO4 battery technology, and a 90° rotatable LCD. It installs as a 2U rack mount UPS or a tower UPS. This is suitable for servers, networking equipment, telecom devices, security systems, workstations, and other critical electronic loads.

Why choose this lithium ion UPS?

Compared with lead-acid UPS systems, the PER1101+Li uses LiFePO4 technology. LiFePO4 offers 2,000–5,000 charge cycles, 90–120 Wh/kg energy density, and no routine watering or equalization. The chassis fits rack or tower positions. Its rotatable LCD, compact 2U chassis, and 1000W output make it particularly suitable for space-constrained IT environments.

PER1101+Li 1000VA lithium ion UPS 2U rack mount with LiFePO4 technology

 

Conventional UPS Designs Lack Installation Options

Modern IT and electronic equipment needs compact, reliable, and low-maintenance backup power. Conventional UPS systems create several problems.

A lead-acid UPS may need battery replacement every 3–5 years. It occupies 3–5 U of rack space or 0.3–0.8 m² of floor area. It weighs 15–25 kg for a 1000VA model. Many UPS systems mount only in racks or only as towers.

This creates a problem for system integrators and IT managers:

  • A rack-mounted UPS does not work well outside a rack.
  • The tower UPS uses floor space in a server room.
  • A fixed LCD becomes unreadable when installed horizontally.
  • Lead-acid batteries add 8–12 kg weight and require replacement every 2–4 years.
  • Small businesses and distributed IT sites need power protection without large UPS cabinets.

The PER1101+Li 1000VA lithium ion UPS addresses these requirements. It combines LiFePO4 batteries, two installation methods, 1000W output in 2U, and local monitoring via LCD and ports.

1000VA Lithium Ion UPS for Rack and Tower Installation

The PER1101+Li is a 1000VA/1000W lithium ion UPS. It targets applications where space, battery cycle life, installation flexibility, and power protection matter.

Its mechanical feature is the 2U chassis with a 90° rotatable LCD.

The same UPS configures for:

Rack installation → rotate the LCD → install horizontally in a standard rack

or

Tower installation → rotate the LCD → place the UPS vertically beside the equipment

This produces an adaptable rack mount lithium ion UPS. You do not choose between rack and tower at purchase.

The 90° rotatable LCD improves interface readability according to physical orientation.

Installation Mode LCD Orientation Typical Application
Rack Mount Rotated for horizontal installation Server racks, network cabinets, telecom racks
Tower Rotated for vertical installation Offices, security rooms, control rooms
Distributed IT Adjustable according to deployment Branch offices, retail, small server rooms
System Integration Flexible OEM/ODM and project applications

This attracts IT system integrators, UPS distributors, telecom installers, and professional users who need one UPS platform for multiple deployments.

PER1101+Li 1000VA lithium ion UPS in two installation configurations

 

Why It Matters in a Lithium Ion UPS

The battery determines backup runtime and operating cost.

A UPS may have efficient power electronics, but backup performance and total cost depend on battery chemistry.

The PER1101+Li uses a LiFePO4 lithium battery, a lithium-ion chemistry widely selected for applications requiring a combination of safety, cycle life, stability, and compact energy storage.

Compared with conventional VRLA lead-acid batteries, LiFePO4 technology can provide important system-level advantages.

Factor LiFePO4 Lithium Ion UPS Conventional VRLA UPS
Battery Chemistry Lithium Iron Phosphate Lead Acid
Energy Density Higher Lower
Expected Battery Service Life Generally longer Generally shorter
Weight Lower Higher
Maintenance Lower Higher
Space Efficiency Excellent Moderate
Cycle Performance Excellent Moderate
Suitability for Frequent Cycling Better More limited
Long-Term Replacement Requirement Reduced More frequent

The exact battery life depends on operating temperature, charging conditions, depth of discharge, load profile, battery management, and other environmental factors. Therefore, lithium technology should not be evaluated simply by battery capacity; the complete UPS + battery management + thermal environment + load profile should be considered.

Technical Specifications

General Specifications

Parameter Specification
Model PER1101+Li
Capacity 1000VA / 1000W
Topology Online Double Conversion
Phase Single Phase
Form Factor Rack Mounted
Dimension (D×W×H) 440x420x88 mm [2U]
Net Weight 6.5 kg

Input and Output Performance

Parameter Specification
Input Voltage Range Nominal Voltage ±15%
Frequency Range 50Hz: 44-56Hz / 60Hz:54-66Hz
Input Power Factor ≥0.99
Input THDi <6%
Output Voltage 208/220/230/240VAC Selectable
Voltage Regulation ±1% (Battery Mode)
Output Waveform Pure Sine Wave
Transfer Time 0ms
Battery Frequency Accuracy 50Hz/60Hz ±0.1%
Crest Factor 3:1

Battery and Communication

Parameter Specification
Battery Type LiFePO4 Lithium / Lead Acid
Nominal Battery Voltage 48VDC (51.2VDC LiFePO4)
Charging Current 5A Default, Adjustable 1-30A
Charging Mode CC/Floating or CC/CV/Floating
Battery Protection Over-charge, Over-discharge, Over-current, Short Circuit, Temperature Protection
Communication Ports USB / RS232 / RS485
Smart Slot SNMP / Dry Contact Optional
BMS Protocol Pylontech RS485 & CANbus

Lithium UPS Detail

PER+Li Single Phase 2U Rack Mount Lithium UPS Rear

1. External Battery Connector 2. Emergency Power Off(Option) 3. RS485 Port for BMS
4. USB Port 5. AC Output Sockets 6. Grounding
7. Intelligent Slot(for SNMP Card or AS400 Dry Contact) 8. Input Circuit Breaker 9. AC Input Terminal

High Power Density for Critical Loads

The PER1101+Li provides 1000VA / 1000W output capacity.

The 1:1 VA-to-Watt relationship is particularly useful for modern electronic loads because the UPS can deliver its rated apparent power without requiring users to significantly derate the connected load due to a low output power factor.

Typical applications include:

  • Network switches
  • Routers and firewalls
  • Small servers
  • NAS systems
  • CCTV and security equipment
  • Telecom equipment
  • Industrial control equipment
  • Professional workstations
  • POS systems
  • Access-control systems
  • Communication equipment

For example, a load consisting of a server, network switch, router, and storage device can potentially be consolidated into a compact UPS-protected power architecture, provided the actual total load remains within the UPS’s rated output and transient requirements.

2U Rack Mount Design for Modern IT Infrastructure

Space inside an IT rack is expensive.

A 2U lithium ion UPS allows power protection to be integrated directly into a standard rack architecture without requiring a separate floor-standing UPS cabinet.

This is especially useful for:

Data and Network Rooms

The UPS can be installed together with servers, switches, firewalls, storage devices, and other network infrastructure.

Edge Computing

Distributed computing locations often have limited physical space and require compact backup power.

Telecom Applications

Rack-mounted UPS systems can protect communication and networking equipment while maintaining an organized cabinet layout.

Small and Medium Businesses

A compact rack UPS can provide professional backup power without requiring a dedicated UPS room.

Security Systems

CCTV servers, network video recorders, access-control systems, and communication equipment can benefit from centralized backup power.

PER1101+Li 1000VA lithium ion UPS major advantages

90-Degree Rotatable LCD Screen

One of the strongest differentiators of the PER1101+Li is its rotatable LCD interface.

For a conventional rack UPS, the LCD is normally designed around horizontal rack installation. If the same unit is used as a tower, the display orientation may become inconvenient.

PER1101+Li solves this through a 90-degree rotatable LCD.

Rack Mount Configuration

The UPS is installed horizontally inside the rack. The LCD is rotated so that the interface remains correctly oriented for the operator.

Tower Configuration

The UPS is positioned vertically using the appropriate tower installation arrangement. The LCD can be rotated 90° so the information remains easy to read.

This design provides a practical advantage for distributors and system integrators because the same product can address two installation requirements.

Frequently Asked Questions (FAQ)

How does the 90-degree rotatable LCD display work on the PER1101+Li 1000VA UPS?

The LCD screen uses a pull-and-rotate mechanism. When switching the unit from a 2U rack mount setup to a vertical tower orientation, operators can gently pull the bezel and turn the display panel 90 degrees clockwise or counterclockwise. This ensures display indicators, load meters, and warning codes remain upright and easy to read.

Why is LiFePO4 battery technology superior to lead-acid for a lithium ion UPS?

LiFePO4 (Lithium Iron Phosphate) provides an extraordinary cycle life (2,000–3,000+ cycles), operates safely up to 60°C without risk of thermal runaway, and delivers up to 10 years of service life. A LiFePO4 battery backup for server rack reduces unit weight by 50% and recharges 4x faster than VRLA batteries.

Does the PER1101+Li LiFePO4 lithium UPS support remote network administration?

Yes. The unit includes USB and RS232 management ports along with an intelligent slot supporting optional SNMP network management cards. This enables automated server shutdown, real-time alert notifications, and remote monitoring over LAN/WAN networks.

How does a lithium ion UPS achieve a lower Total Cost of Ownership (TCO)?

While the initial hardware investment is higher, a lithium ion UPS eliminates 2 to 3 battery replacement cycles and service labor expenses over a 10-year service life, resulting in a 35% to 50% reduction in total cost of ownership.

Can the PER1101+Li lithium UPS system protect a server?

Yes. The 1000VA/1000W capacity makes it suitable for many small servers and network environments. However, the actual server configuration and total connected load should always be checked against the UPS's rated capacity and the server's startup/transient power requirements.

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MODEL PER1101+Li
CAPACITY 1000VA/1000W
Form Factor Rack Mounted
Size, W X D X H (mm) 440x420x88 [2U]
Net Weight (kgs) 6.5
INPUT
Voltage Range Low Line Transfer 176Vac (Load ≥100%); 176–110Vac (Load 100%–50%); 110Vac (Load ≤50%)
Low Line Recovery Low transfer voltage + 10 V
High Line Transfer 300 Vac ±5%
High Line Recovery 290 Vac ±5%
Frequency Range 50Hz:44-56Hz or 60Hz: 54-66Hz
Phase Single Phase, L+N+PE
Power Factor ≧ 0.99 @ nominal voltage (input voltage)
Harmonic Distortion(THDi) < 6%
OUTPUT
Output Voltage 208/220/230/240VAC (Selectable)
AC Voltage Regulation ± 1% (Batt. Mode)
Frequency Range(AC Mode) Synchronized to Mains
Frequency Range (Batt. Mode) 50Hz or 60Hz ± 0.1%
Current Crest Ratio 3:1
Harmonic Distortion(THDv) <3% THD (Linear Load), <6% THD (Non-linear Load)
Transfer Time AC to Battery 0ms
Battery to AC 0ms
Inverter to Bypass 4ms
Waveform Pure Sine Wave
Overload Capacity AC Mode:                             Battery Mode:
30mins @102%-110% load                1min @102%-110% load
10mins @110%-130% load              10sec @110%-130% load
30sec @130%-150% load               3sec @130%-150% load
200ms @>150% load                      200ms @>150% load
EFFICIENCY
AC Mode > 93%
Battery Mode > 91.2%
BATTERY
Battery Type LiFePO4 Lithium / Lead-Acid
Nominal Battery Voltage 48VDC (51.2VDC for LiFePO4)
Charging Current 5A(Default),1A-20A
Charging Voltage 56.4VDC (14.1V * N)
Charging Algorithm 2-stage (CC/Floating) or 3-stage (CC/CV/Floating)
BMS Protection Over-charge, Over-discharge, Over-current, Short-circuit, Over-temp, Under-temp
Integrated Functions Auto Restart, Self-Test Function, Smart Battery Management
ECO
Input Voltage Range Nominal Voltage ± 15%
Input Frequency Range 50Hz / 60Hz ± 4Hz
ENVIRONMENT
Ambient Temperature 0°C – 40°C
Operating Humidity 20%-95% (Non-condensing)
Storage Temperature -15~60℃ (Excluding battery)
Altitude 1000 m (derate for higher altitudes up to 4000 m)
Noise Level Less than 50dBA @ 1 Meter
COMMUNICATION
Communication Interface USB, RS485 for BMS
BMS Protocol Support Native support for Pylontech RS485 and CANbus protocols
Expansion Slot Smart Slot for optional SNMP / Dry Contact cards
Prostar 150x40
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