The APC Smart-UPS On-Line 20kVA/20kW (SRTG20KXLI) is a high-density, double-conversion online UPS designed to deliver robust power protection for mission-critical applications in data centers, server rooms, and industrial environments. With its scalable runtime, pure sine wave output, and advanced management features, this UPS ensures uninterrupted power for servers, networking equipment, and other sensitive electronics. In this blog, we’ll explore the key features, performance, pros, cons, and ideal use cases of the SRTG20KXLI to help you determine if it’s the right fit for your power protection needs.
Overview of the APC Smart-UPS On-Line SRTG20KXLI
The SRTG20KXLI is part of APC by Schneider Electric’s Smart-UPS On-Line family, offering 20kVA/20kW of power in a versatile 7U rack/tower convertible form factor. It supports 230V single-phase and 380V/415V three-phase input/output configurations, making it adaptable to various electrical environments. Designed for high-density applications, it provides double-conversion online topology for zero transfer time, ensuring clean, uninterrupted power.
Key Features of the APC Smart-UPS On-Line SRTG20KXLI
1. Double-Conversion Online Topology
The SRTG20KXLI uses double-conversion online technology, providing a pure sine wave output with zero transfer time during power disruptions. This ensures compatibility with sensitive equipment, such as blade servers and active power factor corrected (PFC) devices, by delivering clean power regardless of input conditions. It protects against outages, surges, spikes, and voltage fluctuations.
2. High Power Capacity and Unity Power Factor
With a 20kVA/20kW capacity and a unity power factor (VA=W), the SRTG20KXLI delivers maximum usable power, supporting high-density loads like blade servers, storage systems, and networking gear. It can handle up to 20,000W of equipment, making it ideal for large data centers or industrial applications.
3. Flexible Input/Output Configurations
The UPS supports multiple electrical configurations:
- Input: Hard wire 5-wire (3P+N+E) or 3-wire (1P+N+E).
- Output: Hard wire 5-wire (3P+N+E), 3-wire (1P+N+E), and 1x IEC C19 outlet.
- Nominal Output Voltage: 220V/230V (default)/240V, with 50/60 Hz auto-sensing frequency.
This flexibility accommodates diverse electrical setups, from single-phase to three-phase environments (1:1, 3:1, 3:3 configurations).
4. Scalable Runtime
The SRTG20KXLI supports up to 4 external battery packs (SRTG192XLBP2) for extended runtime, critical for applications requiring hours of backup power. At full load (20kW), it provides 3 minutes and 1 second of runtime, extendable with additional battery modules. This scalability ensures business continuity during prolonged outages.
5. High Efficiency with Green Mode
The UPS features a Green Mode with >98% efficiency, reducing energy consumption and cooling costs without compromising reliability. Typical online efficiency is >93.5% at full load, making it an eco-conscious choice for large-scale deployments.
6. Advanced Management and Monitoring
- Pre-installed Network Card (AP9641): Enables remote monitoring and management via a web interface, SNMP, or PowerChute Network Shutdown software, which supports graceful shutdowns of network operating systems.
- Multi-Color LCD Display: Provides intuitive, real-time information on load, battery status, runtime, and diagnostics, with local configuration options.
- SmartSlot: Allows additional accessories for enhanced communication options.
- USB and Serial (RJ45) Connectivity: Facilitates local management and integration with PowerChute software.
7. Intelligent Battery Management
The UPS uses hot-swappable, user-replaceable sealed lead-acid batteries (model APCRBC172) with temperature-compensated charging to extend battery life (typically 3-5 years). Features include:
- Automatic Self-Test: Detects battery issues early.
- Predictive Failure Notification: Alerts users to replace batteries proactively.
- Flash-Upgradeable Firmware: Allows remote firmware updates via FTP.
8. Robust Build and Certifications
- Rack/Tower Convertible: Requires a separate rail kit (SRTGRK1) for rack mounting.
- Emergency Power Off (EPO): Enables remote shutdown in emergencies.
- Green Premium™ Label: Complies with RoHS/REACH, using recycled cardboard (minimum 70%) and supporting Schneider Electric’s take-back program for recyclability.
- Certifications: Meets CE, EAC, and other regional standards, ensuring safety and compliance.
9. Warranty and Support
The SRTG20KXLI comes with a 3-year warranty on electronics (2 years for batteries) and a $150,000 lifetime connected equipment protection policy. APC offers expert support via phone, live chat, and online resources, with optional services like 5×8 Assembly and Power-Up Service (WASSEMUPS-3R-SB-00).
Performance and Real-World Use
The SRTG20KXLI is designed for high-density environments, delivering reliable power for critical systems. Its 3-minute runtime at full load is sufficient for short outages or generator failover, and external battery packs can extend this significantly. Users report seamless operation in data centers, with the UPS handling power fluctuations without interrupting connected equipment. The zero transfer time ensures no downtime for sensitive devices like medical lab equipment or blade servers.
However, user feedback is limited due to the product’s specialized nature. Some note the high initial cost and the need for professional installation due to its hardwired connections and 110 kg (242 lbs) weight. The 7U form factor (43.2 x 60.8 x 71.3 cm) requires significant rack space, and the lack of an included rail kit adds to the cost. Noise levels are moderate, suitable for server rooms but potentially noticeable in quieter environments.
Pros and Cons
Pros
- High Power Capacity: 20kVA/20kW with unity power factor for maximum usable power.
- Double-Conversion Topology: Zero transfer time and pure sine wave output for sensitive equipment.
- Scalable Runtime: Supports up to 4 external battery packs for extended backup.
- High Efficiency: Green Mode achieves >98% efficiency, reducing operational costs.
- Advanced Management: Pre-installed network card and LCD display simplify monitoring and control.
- Flexible Configurations: Supports single-phase and three-phase inputs/outputs.
- Eco-Friendly: Green Premium™ certification with recyclable materials.
- Reliable Warranty: 2-year electronics warranty and $150,000 equipment protection policy.
Cons
- Complex Installation: Hardwired connections require professional setup.
- Bulky and Heavy: 7U size and 110 kg weight demand substantial space and planning.
- No Rail Kit Included: Additional purchase (SRTGRK1) needed for rack mounting.
- Limited User Reviews: Sparse feedback makes real-world reliability harder to assess.
- Noise: May be audible in quiet environments, though acceptable for server rooms.
Who Should Buy the APC Smart-UPS On-Line SRTG20KXLI?
The SRTG20KXLI is ideal for:
- Data Centers: Protecting blade servers, storage systems, and networking equipment.
- Medical Labs: Ensuring uptime for sensitive diagnostic equipment.
- Light Industrial Applications: Supporting critical machinery with stable power.
- Large Enterprises: Needing scalable runtime and remote management for business continuity.
- IT Administrators: Requiring robust monitoring and high-density power protection.
For smaller setups or less critical applications, a lower-capacity UPS like the APC Smart-UPS C 1500VA (SMC1500I) or SRT10KXLI may be more cost-effective.
Tips for Optimal Use
- Professional Installation: Hire a certified electrician for hardwired connections to ensure safety and compliance.
- Add Battery Packs: Use SRTG192XLBP2 modules for extended runtime in critical applications.
- Leverage Network Management: Configure the AP9641 network card for remote monitoring via SNMP or PowerChute.
- Regular Maintenance: Run automatic self-tests and replace batteries (APCRBC172) every 3-5 years.
- Ventilation: Ensure proper airflow in server rooms to manage heat and noise.
- Firmware Updates: Check APC’s website for firmware updates to maintain optimal performance.
Conclusion
The APC Smart-UPS On-Line 20kVA/20kW (SRTG20KXLI) is a premium, high-density UPS tailored for mission-critical environments. Its double-conversion topology, scalable runtime, and advanced management features make it a top choice for data centers, medical labs, and industrial applications. While its high cost, complex installation, and bulky design may be drawbacks, the reliability, efficiency, and flexibility it offers justify the investment for businesses prioritizing uptime.
For those needing robust power protection, the SRTG20KXLI delivers unmatched performance. To purchase or learn more, CONTACT US @ TIACO TECHNOLOGIES.