Description
The APS-RTx PowerLine Flex PL31-20K-P2-B1-KIT is a scalable 20kVA / 20kW online UPS system comprising 2 parallel PL31 FL 10.0k HC power modules and 1 PL31-BR20120FL external battery box.
The two 10kVA / 10kW power modules operate in parallel, providing a combined system capacity of 20kVA / 20kW while maintaining the flexibility to expand the installation further as power requirements grow.
Using online double-conversion technology, connected equipment is continuously supplied through the UPS inverter, providing stable, conditioned power and zero transfer time during utility failure.
Each power module delivers a 1.0 output power factor, allowing the complete system to provide up to 20kW of usable active power.
The system uses a 3-phase input / single-phase output architecture, making it suitable for facilities with three-phase utility supplies and critical single-phase loads.
The included PL31-BR20120FL battery box contains 20 × 12V 9Ah maintenance-free VRLA batteries, providing approximately 2.16kWh of nominal stored battery energy.
The modular architecture allows the system to be expanded to up to four PL31 FL 10.0k HC power modules in parallel, providing a maximum scalable capacity of 40kVA / 40kW.
Additional compatible battery boxes can also be added where longer backup duration is required.
Key Features
- 20kVA / 20kW total UPS capacity
- 2 power modules included
- 2 × 10kVA / 10kW power modules
- 1 battery box included
- 1.0 output power factor
- Online double-conversion technology
- 3-phase input / 1-phase output
- Parallel UPS architecture
- Zero transfer time from utility to battery
- Pure sine-wave output
- Rack/Tower convertible power modules
- 208–478VAC three-phase input range
- 220 / 230 / 240VAC output
- Input power factor ≥0.99
- Supports up to 4 power modules in parallel
- Expandable to 40kVA / 40kW
- Generator compatible
- ECO operating mode
- LCD status display
- USB communication
- RS232 communication
- Intelligent communication slot
- 1 × 2.16kWh battery box included
- 20 × 12V 9Ah batteries included
- ±120VDC battery system
- Additional battery capacity can be added
- Overload, short-circuit and battery protection
Typical Applications
Suitable for:
- Server rooms
- Data centres
- Banking and financial systems
- Network infrastructure
- Telecommunications equipment
- CCTV and security systems
- Access-control infrastructure
- Communications racks
- Business-critical IT systems
- Industrial control systems
- Automation systems
- Laboratory equipment
- Critical office infrastructure
System Technical Specifications
| Specification | PL31-20K-P2-B1-KIT |
|---|---|
| System Type | Parallel Online UPS System |
| UPS Technology | Online Double Conversion |
| Rated Capacity | 20,000VA / 20,000W |
| Output Power Factor | 1.0 |
| Power Modules Included | 2 |
| Power Modules | 2 × PL31 FL 10.0k HC |
| Capacity per Module | 10kVA / 10kW |
| Battery Boxes Included | 1 |
| Input Phase | 3 Phase + Neutral + Earth |
| Output Phase | Single Phase |
| Nominal Input Voltage | 380 / 400 / 415VAC |
| Input Operating Range | 208–478VAC |
| Output Voltage | 220 / 230 / 240VAC |
| Output Frequency | 50 / 60Hz |
| Output Waveform | Pure Sine Wave |
| Transfer Time | 0ms |
| Parallel Capability | Yes |
| Maximum Power Modules | 4 |
| Maximum Expandable Capacity | 40kVA / 40kW |
| Generator Compatible | Yes |
| Communications | USB, RS232, Intelligent Slot |
| Power Module Installation | Rack / Tower |
| Power Module Rack Height | 3U each |
| Battery Box Rack Height | 3U |
| Combined Rack Space | 9U |
Included Battery System
| Specification | Battery System |
| Battery Box Model | PL31-BR20120FL |
| Battery Boxes Included | 1 |
| Batteries per Box | 20 × 12V 9Ah |
| Total Battery Quantity | 20 × 12V 9Ah |
| Battery Technology | Maintenance-Free VRLA |
| Battery System Voltage | ±120VDC |
| Total Series Voltage | 240VDC |
| Nominal Energy per Box | 2.16kWh |
| Total Nominal Battery Energy | 2.16kWh |
| Enclosure | Rack-Mount Battery Box |
| Rack Height | 3U |
Battery Capacity
The included battery box provides:
20 × 12V × 9Ah = 2.16kWh nominal battery capacity
Actual backup time depends on:
- Connected system load
- Battery age and condition
- Ambient temperature
- Battery discharge rate
- UPS operating efficiency
For a 20kW system, this configuration prioritizes power capacity over extended runtime. Additional PL31-BR20120FL battery boxes can be added where longer backup duration is required.
What’s Included
UPS Power Modules
2 × PL31 FL 10.0k HC
Each module provides:
- 10kVA / 10kW
- PF1.0
- 3-phase input
- Single-phase output
- Rack/Tower configuration
- Parallel capability
Combined UPS capacity: 20kVA / 20kW
Battery Box
1 × PL31-BR20120FL
- 20 × 12V 9Ah batteries
- ±120VDC
- 2.16kWh nominal energy
- 3U rack enclosure

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APS-RTx PowerLine Flex PL31-30K-P3-B2-KIT – 3 × 10kVA/10kW Power Modules + 2 × 2.16kWh Battery Boxes, 30kVA/30kW Parallel Online UPS System
APS-RTx PowerLine Flex PL31-30K-P3-B2-KIT – 3 × 10kVA/10kW Power Modules + 2 × 2.16kWh Battery Boxes, 30kVA/30kW Parallel Online UPS System → APS-RTx PowerLine Flex PL31 FL 10.0k HC – 10kVA/10kW 3:1 Online Rack/Tower UPS PM
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