LiFePO4 Lithium Rack/Tower UPS 1–10 kVA
RM11E PRO is a LiFePO4 lithium online double-conversion rack/tower UPS for 1–10 kVA applications. It combines PF 1.0 output, pure sine wave protection, integrated or external lithium battery options, and high-efficiency 3-Level IGBT design on 6–10 kVA models. Built for servers, network switches, telecom shelters, edge IT and data-center loads. CE, EMC, LVD and IEC 62040 standards available by series.
Engineered for Reliability
Lithium-first online double-conversion UPS design with integrated or external LiFePO4 battery options, BMS protection, and scalable communication and parallel options by model.
LiFePO4 Lithium Batteries
LiFePO4 battery system with BMS protection provides long cycle-life design, >2000 charge cycles under specified operating conditions, and longer service potential than typical VRLA batteries.
Online Double-Conversion VFI
Online double-conversion VFI topology with DSP control delivers PF 1.0 output, pure sine wave power and 0 ms online transfer. 6-10 kVA models add 3-Level IGBT design for higher efficiency.
Up to 95.5% Efficiency
High online-mode efficiency: up to 92% on 1-3 kVA models and up to 95.5% on 6-10 kVA models. ECO mode reaches up to 96.5% on 1-3 kVA and up to 98% on 6-10 kVA in stable utility environments.
Lithium Rack/Tower Design
Compact 2U rack/tower chassis with integrated LiFePO4 pack on 1-3 kVA S models. 6-10 kVA models use Elite-class rack/tower chassis with external LiFePO4 battery cabinet options. Rotatable LCD supports rack or tower installation.
Parallel-Capable Models
Parallel-capable 6 and 10 kVA models support up to 4 units for capacity scaling or N+X redundancy, subject to model configuration and project design.
Low-Noise Operation
Low-noise operation: under 45 dB at 1 m on 6 kVA models and under 50 dB at 1 m on 10 kVA models – suitable for server rooms, offices and noise-sensitive environments.
Expand Your System
Optional accessories for runtime extension, remote monitoring, rack installation and maintenance bypass support – available by model.
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 | NOR (Online), ECO, CF, Bypass, Battery | ||
| Standards | IEC/EN 62040-1, IEC/EN 62477-1, IEC/EN 62040-2, IEC 62619, UN38.3 | ||
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 | NOR, ECO, GEN, CF, PAL, Bypass, Battery | |
| Parallel | Up to 4 units (N+X redundancy) | |
| Intelligent Slots | 2× dual slots (TM220 SNMP, Relay, Modbus-TCP) | |
| 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) | 90% | 92% | 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 | ||
| Initial Charge to Full | 5 hours | ||
| 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 Life | 8–10 years / >2000 cycles | |
Compatible Battery Cabinets
| Model | Type | Chemistry | Capacity | Voltage | For |
|---|---|---|---|---|---|
| RC04808S-LI | 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 | 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 | 9.6kg | 16.1kg | 20.97kg |
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) |
| SNMP Slot | 1× intelligent slot (optional SNMP card, MEGAtec protocol) |
| EPO | Optional – normally-open dry contact (max 10Ω) |
| 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 | 2× dual slots (TM220 SNMP, Modbus-TCP, or Relay) |
| 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 |
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% | 0.5 seconds | 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% | 0.5 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) | <1000m – derate above: 2000m=90%, 2500m=85%, 3000m=80% |
| Max Operating Altitude | 3000m |
| Protection Class | IP20 |
| Safety (1–3 kVA) | IEC/EN 62040-1, IEC/EN 62477-1, IEC 62133, IEC 62619, UN38.3 |
| 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) | UN38.3, 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 Circuit Breakers (external)
| 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 industrial environments requiring long-life LiFePO4 battery backup, PF 1.0 online power and compact rack/tower installation.
Server Rooms & IT Racks
LiFePO4 online double-conversion protection for rack servers, network switches, storage arrays, firewalls and edge IT loads where longer battery service life and lower maintenance are required.
Network & Telecom
Lithium UPS backup for routers, switches, telecom shelter electronics, access equipment and 5G network cabinets where compact installation and reduced battery replacement visits are important.
Edge Computing & Remote IT
Compact LiFePO4 rack/tower UPS protection for distributed IT, edge cabinets, micro data centers and remote network rooms with limited maintenance access.
Industrial Control & Automation
PF 1.0 online lithium UPS protection for PLCs, SCADA workstations, industrial PCs, automation controllers and precision manufacturing support loads.
Banking & Finance IT
Long-life lithium UPS protection for ATM networks, branch banking IT, payment systems, trading-floor workstations and network infrastructure requiring stable online power.
Security & Surveillance Racks
LiFePO4 UPS backup for IP CCTV, NVRs, access-control panels, alarm systems and security network racks where continuous recording and lower battery maintenance are required.
Need VRLA, High-PF or Tower Format?
Compare RM11E PRO with related ATENCO online UPS series – RM11E for standard PF 0.9 rack, RM11E Elite for high-PF VRLA rack and TM11E Elite for tower installations.
Specify Your RM11E PRO
Lithium Rack UPS
Need longer battery life and lower maintenance than VRLA? Send your load, runtime target, rack space and site voltage. ATENCO will size the right RM11E PRO 1–10 kVA lithium UPS, confirm the integrated or external LiFePO4 battery configuration, and include monitoring, parallel or maintenance bypass options in your project quotation.