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ShanPu 1-10kVA rack mount online UPS for server and network equipment - ShanPu

Rear panel of a UPS system showing input, fan, and dual UK power outlets. - ShanPu

High Frequency Rack Mount Lithium UPS for Network Cabinets

Q: What is a rack mount lithium UPS?

A rack mount lithium UPS is an uninterruptible power supply in a standard rack form factor that uses lithium iron phosphate (LiFePO4) batteries instead of lead-acid batteries. ShanPu LD series models (1-3kVA, 2U) combine online double-conversion topology, pure sine wave output and 0ms transfer time for IT equipment in network cabinets and server rooms.

Q: What is the difference between a lithium UPS and a lead-acid UPS?

The core difference is the battery: LiFePO4 lithium cells are maintenance-free, recharge faster, tolerate deeper discharge and deliver significantly more charge/discharge cycles than VRLA lead-acid batteries. That means lighter weight, lower long-term cost of ownership and fewer service visits over the life of the UPS.

Q: Which model should I choose — LD1KR, LD2KR or LD3KR?

Choose by total load power: LD1KR covers up to 1kVA/1000W, LD2KR up to 2kVA/2000W and LD3KR up to 3kVA/3000W. Then confirm your input voltage system — all models support 110V (100-127VAC) or 220V (200-240VAC) configurations.

Q: How long can the UPS provide backup power, and can runtime be extended?

The built-in LiFePO4 pack provides up to 960Wh per unit. For longer runtime, the LD series supports external battery cabinets (battery voltage up to 96VDC depending on model), so backup time can be scaled to project requirements. Tell us your load power and required runtime for a sizing proposal.

Q: Does the UPS support remote monitoring?

Yes. Standard interfaces include RS232, USB, AS400, RS485 and SNMP, with a multifunctional LCD panel on the front. An optional SNMP card enables monitoring through network management systems.

Q: What does 0ms transfer time mean?

It means the load is continuously powered by the inverter — when mains fails or returns, there is no switching gap (0ms). This online double-conversion design protects sensitive IT equipment that cannot tolerate even a momentary interruption.

Q: What are the dimensions and installation requirements?

All LD models use a standard 19-inch 2U rack form factor: 380 × 438 × 88mm, weighing 11.2-14.5kg (built-in battery models). They install directly into network cabinets or server racks; operating noise is below 50dBA at 1m at full load.

Q: Do you offer OEM/ODM service and what information do you need for a quotation?

Yes. ShanPu manufactures the LD series and supports OEM/ODM customization including output sockets, voltage configuration, panel layout and branding. For a quotation, please provide: quantity, application scenario, load power and required runtime, input voltage system, and any customization needs.

Compact 2U rack mount lithium UPS with LiFePO4 battery, pure sine wave output, 0ms transfer time, intelligent battery management, and reliable backup power for network cabinets, server rooms, data centers, and industrial IT systems.

ShanPu LD series rack mount lithium UPS is an online double-conversion UPS built around a lithium iron phosphate (LiFePO4) battery pack, delivering pure sine wave output with 0ms transfer time in a standard 19-inch 2U form factor. It is designed for enterprise IT environments where rack space is limited but power quality and backup reliability are not negotiable: network cabinets, edge server rooms, compact data centers and industrial IT systems.

Compared with a conventional lead-acid rack UPS, the LD series weighs less, recharges faster and needs no battery maintenance — while offering the same space-saving 2U footprint. The 1/2/3kVA lineup covers input voltages of 110V or 220V systems, and external battery cabinets (up to 96VDC) extend runtime for long-duration backup projects. Every unit is available with ShanPu OEM/ODM customization.

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Product Detail

Key Features of ShanPu Rack Mount Lithium UPS (LD Series)

Online double conversion, pure sine wave output — clean, regulated power with 0ms transfer time, so servers and network switches never notice a power event.
LiFePO4 lithium battery inside the 2U chassis — up to 960Wh built-in capacity with a BMS protection board (>50A/>60A) for safe, maintenance-free operation.
Standard 19-inch 2U rack form factor (380 × 438 × 88mm) — fits directly into network cabinets and server racks without wasting space.
1 / 2 / 3 kVA models for 110V or 220V systems — selectable input voltages from 100/110/115/120/127VAC or 200/208/220/230/240VAC for global projects.
High efficiency — up to 95.5% in mains mode and 91.5% in battery mode reduces heat and energy cost in the rack.
Full remote monitoring — RS232, USB, AS400, RS485 and SNMP interfaces with a multifunctional LCD panel; optional SNMP card for network management.
Extended runtime ready — external battery cabinets (up to 96VDC) can be added for long-duration backup requirements.

OEM/ODM available — custom output sockets, voltage configuration, panel layout and branding for channel partners and system integrators.

Why choose a lithium rack UPS over lead-acid?

No battery maintenance — LiFePO4 cells are sealed and maintenance-free, cutting service visits over the product life.
Lighter and more compact for the same power — reduces rack loading and simplifies installation.
Faster recharge — the UPS is ready for the next outage sooner than VRLA equivalents.
Longer service life — LiFePO4 chemistry delivers significantly more charge/discharge cycles than lead-acid, lowering total cost of ownership.
Wider operating temperature range and better deep-discharge behaviour — steadier performance in real server-room conditions.
Built-in BMS — cell-level protection against overcharge, over-discharge, overcurrent and temperature abnormality.

Need a lead-acid option for your project? Compare with our rack mount online UPS 1-10kVA (lead-acid version)

Where the LD series fits

Network cabinets & edge server rooms — 2U rack-mount design protects routers, switches and small server clusters during power dips and outages.
Compact data centers & IT infrastructure — online double conversion isolates critical loads from utility noise; SNMP enables central monitoring.
Industrial IT systems — stable backup for control PCs, security systems and on-site edge equipment in plant and telecom environments.

How the LD series works

Step 1 — Always-on double conversion (mains mode)

Incoming AC is converted to DC and back to clean AC by the inverter, so the connected load never runs directly from the grid. This isolates servers and network equipment from surges, sags and frequency noise, and the wide input range (110-300VAC) keeps the UPS running through unstable grid conditions — at up to 95.5% mains-mode efficiency.

Step 2 — Instant battery takeover (0ms)

If mains fails or drifts out of range, the LiFePO4 pack takes over with 0ms transfer time. The load stays on regulated, pure sine wave inverter power with no switching gap — no reboot, no dropped packets — at up to 91.5% battery-mode efficiency.

Step 3 — Safe charging and battery management

When mains returns, the built-in charger recharges the pack (charging current adjustable from 1A to 8A) under the supervision of the BMS, which protects against overcharge, over-discharge, overcurrent and abnormal temperature. For longer ride-through, an external battery cabinet (battery voltage up to 96VDC depending on model) can be added to the system.

Technical Specifications

Model		LD1KR(S)	LD2KR(S)	LD3KR(S)
Installation method		Rack-mount
Main topology		L+N+PE
Capacity		1KVA/1000W	2KVA/2000W	3KVA/3000W
Input
Input voltage		100VAC-127VAC or 200VAC-240VCA
Voltage range		110-300VAC,110-176VAC,280~300VAC
Input frequency		44~56Hz or 54~66Hz
Power factor		≥0.999
Output
Main topology		L+N+PE
Output voltage		100/110/115/120/127VAC or 200/208/220/230/240VCA
Voltage range (battery mode)		±1%
Frequency (synchronous range)		44~56Hz or 54~66Hz
Factor		0.9/1.0
Waveform balance		≤3%THD(Linear load) ≤6%THD(Nonlinear load)
Transfer time		0ms
Output waveform		Pure Sine Wave
Overload Capacity		Line Mode: 30min@102%-110% Load 10min@110%-130% Load 30s@130%~150% Load 200ms@>150% Load
		Battery Mode: 1min@102%-110% Load 10s@110%~130% Load 3s@130%~150% Load 200ms@>150% Load
Efficiency
Mains power mode		94.5%	95.5%	95.5%
Battery mode		87.5%	89.5%	91.5%
Communication and Management
Communication interface		RS232/USB/AS400/RS485/SNMP
Control panel		Multi functional LCD, status and display console
Standard UPS
Standard UPS battery	Battery type	LiFePO4
	Charging current	1-8A(adjustable)
	Battery voltage	24/36/48VDC	48VDC	48VDC
	Battery capacity	960WH	960WH	960WH
	BMS Protective board	>50A	>50A	>60A
	Is the battery pack optional	YES
Machine data	Size(MM)	38043888[2U]
	Weight (KG)	11.2	14.2	14.5
External battery UPS
External battery UPS	Battery type	LiFePO4
	Charging current	1-12A (adjustable)
	Battery voltage	24/36/48VDC	48/72VDC	48/72/96 VDC
Machine data	Size (MM)	38043888[2U]
	Weight (KG)	5.6	8.6	8.9
Environment
Operating humidity		20%~95%(No condensation)
Relative temperature		-25 to 55℃
Maximum noise level at full load (at 1m)		<50dBA@1M

FAQ

What is a rack mount lithium UPS?

A rack mount lithium UPS is an uninterruptible power supply in a standard rack form factor that uses lithium iron phosphate (LiFePO4) batteries instead of lead-acid batteries. ShanPu LD series models (1-3kVA, 2U) combine online double-conversion topology, pure sine wave output and 0ms transfer time for IT equipment in network cabinets and server rooms.

What is the difference between a lithium UPS and a lead-acid UPS?

The core difference is the battery: LiFePO4 lithium cells are maintenance-free, recharge faster, tolerate deeper discharge and deliver significantly more charge/discharge cycles than VRLA lead-acid batteries. That means lighter weight, lower long-term cost of ownership and fewer service visits over the life of the UPS.

Which model should I choose — LD1KR, LD2KR or LD3KR?

Choose by total load power: LD1KR covers up to 1kVA/1000W, LD2KR up to 2kVA/2000W and LD3KR up to 3kVA/3000W. Then confirm your input voltage system — all models support 110V (100-127VAC) or 220V (200-240VAC) configurations.

How long can the UPS provide backup power, and can runtime be extended?

The built-in LiFePO4 pack provides up to 960Wh per unit. For longer runtime, the LD series supports external battery cabinets (battery voltage up to 96VDC depending on model), so backup time can be scaled to project requirements. Tell us your load power and required runtime for a sizing proposal.

Does the UPS support remote monitoring?

Yes. Standard interfaces include RS232, USB, AS400, RS485 and SNMP, with a multifunctional LCD panel on the front. An optional SNMP card enables monitoring through network management systems.

What does 0ms transfer time mean?

It means the load is continuously powered by the inverter — when mains fails or returns, there is no switching gap (0ms). This online double-conversion design protects sensitive IT equipment that cannot tolerate even a momentary interruption.

What are the dimensions and installation requirements?

All LD models use a standard 19-inch 2U rack form factor: 380 × 438 × 88mm, weighing 11.2-14.5kg (built-in battery models). They install directly into network cabinets or server racks; operating noise is below 50dBA at 1m at full load.

Do you offer OEM/ODM service and what information do you need for a quotation?

Yes. ShanPu manufactures the LD series and supports OEM/ODM customization including output sockets, voltage configuration, panel layout and branding. For a quotation, please provide: quantity, application scenario, load power and required runtime, input voltage system, and any customization needs.

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