LiFePO4 Online Rack / Tower UPS 1–10 kVA
Lithium-focused online double-conversion VFI rack/tower UPS for 1–10 kVA applications. RM11E PRO delivers PF 1.0 output, regulated pure sine-wave power and 0 ms transfer between online and battery operation. The 1–3 kVA models use integrated LiFePO4 batteries with hot-swap design and up to 92% efficiency; 6–10 kVA models add three-level inverter technology, up to 95.5% efficiency, LFP or VRLA options, parallel operation and dual intelligent slots. Designed for server racks, network systems, telecom, edge IT, security and critical control loads, with battery architecture and runtime by rating and confirmed configuration. CE, EMC, LVD and IEC/EN 62040 standards by model.
Engineered for Lithium Power Protection
Lithium-focused online double-conversion UPS architecture with integrated or external LiFePO4 battery configurations, battery-management protection and flexible monitoring options by model.
LiFePO4 Battery Technology
LiFePO4 battery systems with integrated battery-management protection provide high cycle-life capability, reduced weight and longer service potential than typical VRLA systems. Cycle life can exceed 2,000 cycles under specified operating conditions, depending on depth of discharge, temperature and charge profile.
Online Double-Conversion VFI
Online double-conversion VFI architecture with DSP digital control provides PF 1.0 output, regulated pure sine-wave power and 0 ms transfer time between online and battery operation. Selected 6–10 kVA models use three-level inverter technology for higher operating efficiency.
Up to 95.5% Online Efficiency
Online efficiency reaches up to 92% on 1–3 kVA models and up to 95.5% on 6–10 kVA models. ECO-mode efficiency reaches up to 96.5% (1–3 kVA) and up to 98% (6–10 kVA), subject to model and operating conditions.
Rack / Tower Lithium Design
Compact rack/tower configurations across the RM11E PRO family. The 1–3 kVA internal-battery versions use integrated LiFePO4 packs, with long-runtime models supporting compatible external lithium systems; the 6–10 kVA platform supports external lithium battery configurations and chassis options by model. Rotatable display supports rack or tower installation.
Parallel-Capable Models
Selected 6 and 10 kVA configurations support parallel operation of up to four units for capacity expansion or N+X redundancy, subject to approved parallel accessories and project design.
Controlled Acoustic Performance
The 6 kVA model operates below 45 dB at 1 m and the 10 kVA model below 50 dB at 1 m, under the stated test conditions. Suitable for server rooms, telecom rooms and office IT environments where acoustic performance is part of the project requirement.
Expand Your System
Optional accessories for runtime extension, remote monitoring, rack installation and maintenance bypass support. Availability depends on UPS model, voltage and project configuration.
LiFePO4 Battery Cabinets
RC04808S-LI external LFP cabinet supports RM11E PRO 1-3 kVA L-LI models, with up to 8 battery packs. RC192S12-LI 192 Vdc LFP cabinet supports RM11E PRO 6-10 kVA models.
SNMP Network Card
Optional TM220 intelligent-slot card provides SNMP, web interface and email alert monitoring. RM11E PRO 6-10 kVA models include dual intelligent slots for optional SNMP / Modbus-TCP and relay communication options.
Rack Rail Kit
Adjustable 19″ rack-mount rails, 700–760 mm depth, for secure RM11E PRO installation in standard server racks.
Maintenance Bypass PDU
External maintenance bypass PDU supports UPS service or replacement while maintaining load supply, when installed according to procedure. RM11E-PDU1100E for 1-3 kVA; RM11E-PDU9300E for 6-10 kVA.
Technical Details
Complete specifications for the RM11E PRO 1–10 kVA lithium UPS series.
1–3 kVA Models
| Specification | 1 kVA | 2 kVA | 3 kVA |
|---|---|---|---|
| Full Name | RM11E PRO Lithium Rack Online UPS | ||
| Topology | Online Double-Conversion (VFI), DSP control | ||
| Phase | 1Ph–1Ph (Single Phase In / Single Phase Out) | ||
| Form Factor | 2U Rack / Tower Convertible | ||
| Capacity | 1000 VA / 1000W | 2000 VA / 2000W | 3000 VA / 3000W |
| Output Power Factor | 1.0 (kW = kVA) | ||
| Battery | LiFePO4 (integrated S models) or external RC04808S-LI cabinet (L models) | ||
| Battery Life | >2000 charge cycle design life, subject to operating conditions | ||
| Operating Modes | Online, ECO, Bypass, Battery | ||
| Standards | IEC/EN 62040-1, IEC/EN 62477-1, IEC/EN 62040-2, IEC 62619, UN 38.3 | ||
6–10 kVA Models
| Specification | 6 kVA | 10 kVA |
|---|---|---|
| Full Name | RM11E PRO Lithium Rack Online UPS | |
| Topology | Online Double-Conversion (VFI), 3-Level IGBT inverter, DSP control | |
| Phase | 1Ph–1Ph (Single Phase In / Single Phase Out) | |
| Form Factor | 2U Rack (no internal battery) / 4U Rack (with internal battery space) / Tower Convertible | |
| Capacity | 6000 VA / 6000W | 10000 VA / 10000W |
| Output Power Factor | 1.0 (kW = kVA) | |
| Battery | LiFePO4 lithium external cabinet (RC192S12-LI); VRLA compatibility by project configuration | |
| Display | Segment colour LCD (optional 3.5” touch HMI) | |
| Operating Modes | Online, ECO, Generator, Converter, Battery, Bypass | |
| Parallel | Up to 4 units (N+X redundancy) | |
| Intelligent Slots | 2× intelligent slots for TM220 SNMP, relay, Modbus-TCP options | |
| Standards | IEC 62040-1, EN 62040-2, IEC/EN 62040-3, ISTA 2A | |
1–3 kVA Models
| Specification | 1 kVA | 2 kVA | 3 kVA |
|---|---|---|---|
| Input Voltage Range | 110–300Vac (176–264V at full load) | ||
| Input PF | ≥0.98 at 100% load | ||
| Input Frequency | 40–70Hz | ||
| Output Voltage | 220/230/240Vac selectable, ±1% regulation | ||
| Output PF | 1.0 (kW = kVA) | ||
| Output Frequency (line) | 46–54Hz or 56–64Hz (synced) | ||
| Output Frequency (battery) | 50/60Hz ±0.1Hz | ||
| THDv | ≤3% linear / ≤5% non-linear | ||
| Transfer Time | 0ms (AC→Bat); 4ms (Inv→Bypass) | ||
| Crest Factor | 3:1 | ||
| Efficiency (Online) | Up to 90% | Up to 92% | Up to 92% |
| Efficiency (ECO) | 95% | 96% | 96.5% |
6–10 kVA Models
| Specification | 6 kVA | 10 kVA |
|---|---|---|
| Input Voltage Range | 110–300Vac (176–300V at 100%; 110–176V at 50%) | |
| Input PF | ≥0.99 | |
| Input THDi | ≤3% | |
| Input Frequency | 40–70Hz auto-sensing | |
| Output Voltage | 208/220/230/240Vac selectable, ±1% regulation | |
| Output PF | 1.0 (kW = kVA) | |
| THDv | ≤1% linear / ≤3% non-linear | |
| Transfer Time | 0ms (AC→Bat); 0ms (Inv→Bypass) | |
| Crest Factor | 3:1 | |
| Efficiency (Online) | Up to 95% | Up to 95.5% |
| Efficiency (ECO) | Up to 97.5% | Up to 98% |
| Programmable Outputs | C19×2 + C13×3 (load shedding) | |
1–3 kVA – Integrated LiFePO4
| Specification | 1 kVA | 2 kVA | 3 kVA |
|---|---|---|---|
| Battery Type | LiFePO4 (Lithium Iron Phosphate) | ||
| Battery Voltage | 25.6Vdc | 76.8Vdc | 76.8Vdc |
| Battery Capacity | 9Ah | 6Ah | 9Ah |
| Backup Time (full load) | 9 min | 9 min | 9 min |
| Max Charge Current | 2A | ||
| Cycle Life | >2000 cycles | ||
| BMS Protection | Built-in | ||
| Hot-Swappable | Yes | ||
6–10 kVA – LFP Primary (VRLA also supported)
| Specification | 6 kVA | 10 kVA |
|---|---|---|
| Battery Types | LiFePO4 (primary) & VRLA (supported) | |
| VRLA Bus Voltage | 192 / 216 / 240Vdc (16/18/20 pcs × 12V) | |
| LFP Bus Voltage | 192Vdc | |
| Max Charge Current | 12A (15A optional) | 15A |
| Recharge to 90% | 4 hours | |
| VRLA Life | 3–5 years at 25°C | |
| LFP Cycle Life | >2000 cycles under specified conditions | |
Compatible Battery Cabinets
| Model | Type | Chemistry | Capacity | Voltage | For |
|---|---|---|---|---|---|
| RC04808S-LI | 2U Rack | LFP | 48V/50Ah (max 8 packs) | 48Vdc | 1–3 kVA L models |
| RC192S12-LI | 2U Rack | LFP | 60S4P, 12Ah | 192Vdc | 6–10 kVA |
| RC16192EL | 3U Rack | VRLA | 16 × 12V/9Ah | 192Vdc | 6–10 kVA |
1–3 kVA Models (S – with integrated LFP)
| Specification | 1 kVA | 2 kVA | 3 kVA |
|---|---|---|---|
| Form Factor | Rack / Tower Convertible | ||
| Dimensions (W×D×H) | 440×325×86.5mm | 440×500×86.5mm | 440×640×86.5mm |
| Weight | 10kg | 16.5kg | 23kg |
6–10 kVA Models
| Specification | 6 kVA | 10 kVA |
|---|---|---|
| 2U Chassis (W×D×H) | 440×621.5×86.5mm | |
| 2U Weight | 15.4kg | 17kg |
| 4U Chassis (W×D×H) | 440×621.5×175mm | |
| 4U Weight (w/battery) | 55kg | 57kg |
| Noise | <45dB at 1m | <50dB at 1m |
| Rack Rail Depth | Adjustable 700–760mm | |
| Colour | Black | |
1–3 kVA Communication
| Interface | Details |
|---|---|
| USB | Type-B USB – cannot use with RS-232 simultaneously |
| RS-232 | DB9 serial (2400bps, 8N1) |
| RS-485 | RS-485 port for multi-drop monitoring |
| SNMP Slot | 1× intelligent slot (optional SNMP card, MEGAtec protocol) |
| EPO | Optional; normally-open dry-contact input |
| Programmable Outlets | Group 1 + Group 2 (priority-based load shedding via LCD) |
| Outputs (1–2 kVA) | 8× C13 (10A) |
| Outputs (3 kVA) | 1× C19 (16A) + 8× C13 (10A) |
| Optional | SNMP card, Dry contact relay card, Surge protection port |
6–10 kVA Communication
| Interface | Details |
|---|---|
| USB | Type-B USB – cannot use with RS-232 simultaneously |
| RS-232 | DB9 serial |
| RS-485 | Built-in for Modbus RTU / multi-drop |
| Intelligent Slots | Dual intelligent slots – accepts TM220 SNMP, Modbus-TCP or relay card |
| EPO | Emergency Power Off connector |
| MAINT | Maintenance bypass sensor (dry-contact input) |
| Parallel Ports | 2× ports (up to 4 units, optional parallel kit) |
| Programmable Outputs | C19×2 + C13×3 (load shedding) |
| HW Terminal Output | L+N+G (non-programmable) |
| Display | Segment colour LCD; optional 3.5” touch HMI |
| Optional | TM220 SNMP, Modbus-TCP, Relay card, Parallel kit, External bypass |
1–3 kVA – Online Mode
| Load Level | Duration | Action |
|---|---|---|
| 105–125% | 1 minute | Transfer to bypass |
| 125–130% | 30 seconds | Transfer to bypass |
| >130% | 0.2 seconds | Transfer to bypass |
1–3 kVA – Battery Mode
| Load Level | Duration | Action |
|---|---|---|
| 105–125% | 1 minute | Shutdown |
| 125–130% | 10 seconds | Shutdown |
| >130% | 0.2 seconds | Immediate shutdown |
1–3 kVA – Bypass Mode
| Load Level | Duration | Action |
|---|---|---|
| 105–130% | 10 minutes | Shutdown |
| 130–200% | 1 minute | Shutdown |
| >200% | 0.2 seconds | Immediate shutdown |
6–10 kVA – Online Mode
| Load Level | Duration | Action |
|---|---|---|
| ≤110% | 60 minutes | Sustained |
| ≤125% | 10 minutes | Transfer to bypass |
| ≤150% | 1 minute | Transfer to bypass |
| >150% | Immediate | Transfer to bypass |
6–10 kVA – Battery Mode
| Load Level | Duration | Action |
|---|---|---|
| ≤110% | 10 minutes | Sustained |
| ≤125% | 1 minute | Shutdown |
| ≤150% | 10 seconds | Shutdown |
| >150% | 0.2 seconds | Immediate shutdown |
6–10 kVA – Bypass Mode
| Load Level | Duration | Action |
|---|---|---|
| 105–130% | Continuous | Overload alarm |
| 130–150% | 10 minutes | Shutdown |
| 150–200% | 1 minute | Shutdown |
| >200% | 0.2 seconds | Immediate shutdown |
| Parameter | Specification |
|---|---|
| Operating Temperature | 0°C to 40°C |
| Storage Temperature | −25°C to 55°C |
| Humidity | 0–95% RH non-condensing (0–40°C) |
| Altitude (Full Load) | 1–3 kVA: full load below 1000 m (derating 1000–3000 m); 6–10 kVA: below 1500 m (derating above 1500 m) |
| Max Operating Altitude | 3000m |
| Protection Class | IP20 |
| Safety (1–3 kVA) | IEC/EN 62040-1, IEC/EN 62477-1, IEC 62133, IEC 62619, UN 38.3 |
| Safety (6–10 kVA) | IEC 62040-1:2017, EN 62040-1:2008+A1:2013 |
| EMC | IEC/EN 62040-2 |
| Performance | IEC/EN 62040-3 |
| Transport (Lithium) | UN 38.3, ISTA 2A |
| Cooling | Forced air (fan) |
Heat Dissipation (Online VFI, PF 1.0)
| Model | 50% Load | 100% Load |
|---|---|---|
| 6 kVA | 158W | 316W |
| 10 kVA | 236W | 471W |
Recommended External Circuit Breakers
| Breaker | 6 kVA | 10 kVA |
|---|---|---|
| Input (1P) | 40A | 63A |
| Maintenance (1P) | 40A | 63A |
| Output (1P) | 40A | 63A |
| Battery (2P DC) | 50A | 63A |
Ideal For
Designed for rack-based IT, telecom, edge, security and control applications requiring PF 1.0 online protection, compact rack/tower installation and high-cycle-life LiFePO4 battery configurations.
Server Rooms & IT Racks
LiFePO4 online double-conversion protection for rack servers, network switches, storage systems, firewalls and edge IT loads requiring clean power, compact installation and extended battery service potential.
Network & Telecom
Lithium UPS protection for routers, switches, telecom equipment, access networks and 5G edge cabinets where compact installation, remote monitoring and reduced battery-replacement frequency are important.
Edge Computing & Remote IT
Compact LiFePO4 rack/tower UPS protection for distributed IT nodes, edge cabinets, compact data centers and remote network rooms with limited maintenance access.
Industrial Control & Automation
PF 1.0 online UPS protection for PLC panels, SCADA workstations, industrial PCs, automation controllers and control-network equipment. Suitability should be confirmed against load profile, inrush current, grounding and environmental conditions.
Commercial & Financial IT
High-cycle-life lithium UPS protection for branch IT rooms, payment systems, network racks, security servers, critical workstations and commercial IT infrastructure requiring stable online power.
Security & Surveillance
LiFePO4 UPS backup for IP CCTV, NVRs, access-control servers, alarm panels, monitoring workstations and security-network racks requiring continuous power protection and flexible runtime.
Need a VRLA Rack UPS, PF 1.0 Platform or Tower Format?
Choose RM11E for conventional PF 0.9 VRLA rack/tower applications, RM11E Elite for PF 1.0 VRLA rack/tower projects, or TM11E Elite when the same PF 1.0 platform is required in a floor-standing tower format.
Online Rack / Tower UPS 1–10 kVA
- Online double-conversion VFI, DSP control
- Single-phase input and output (1:1)
- Output power factor 0.9 by model
- Rack/tower convertible design by model
- Internal & long-runtime VRLA options
- Online efficiency up to 94% by model
PF 1.0 Rack / Tower UPS 6–10 kVA
- Online double-conversion VFI architecture
- Three-level inverter technology
- Output PF 1.0 (kW = kVA)
- Online efficiency up to 95.5% by model
- Dual intelligent slots by model
- VRLA; 2U/4U rack/tower chassis
PF 1.0 Online Tower UPS 6–10 kVA
- Online double-conversion VFI architecture
- Three-level inverter technology
- Output PF 1.0 (kW = kVA)
- Online efficiency up to 95.5% by model
- Dual intelligent slots by model
- Floor-standing tower design
RM11E PRO LiFePO4 UPS FAQ
Common questions about RM11E PRO 1–10 kVA lithium rack/tower UPS selection, battery configurations, runtime, monitoring and related ATENCO online UPS platforms.
What is RM11E PRO?
Why choose lithium (LiFePO4) instead of VRLA?
What is the difference between RM11E PRO 1–3 kVA and 6–10 kVA?
What is the difference between the S-LI and L-LI models?
Does RM11E PRO support VRLA batteries?
What is the difference between RM11E PRO, RM11E and RM11E Elite?
How much backup runtime does RM11E PRO provide?
Does RM11E PRO provide zero transfer time?
Can RM11E PRO units work in parallel?
Does RM11E PRO support SNMP and remote monitoring?
Are the lithium batteries safe?
Are the RM11E PRO batteries hot-swappable?
Which applications are best suited to RM11E PRO?
When should I choose RM11E PRO instead of RM11E Elite?
Can RM11E PRO use a generator?
Can lithium battery capacity be expanded later?
Does RM11E PRO require special charging settings?
Configure Your RM11E PRO
Lithium UPS
Share your load, required backup time, rack space, site voltage, installation format and monitoring requirements. ATENCO will recommend the suitable RM11E PRO rating, integrated or external LiFePO4 battery configuration, runtime arrangement, communication options, parallel design and maintenance-bypass accessories for your project.