In environments where uninterrupted power is non-negotiable—such as data centers, medical labs, and industrial setups—the APC Smart-UPS RT 20kVA RM 230V (SURT20KRMXLI) by Schneider Electric stands out as a high-performance uninterruptible power supply (UPS). Designed for high-density power protection, this rack-mountable UPS delivers robust reliability and advanced features for mission-critical systems. This blog dives into the specifications, features, benefits, and applications of the SURT20KRMXLI, helping you understand why it’s a top choice for demanding power needs.
Overview of the APC Smart-UPS RT 20kVA RM 230V (SURT20KRMXLI)
The APC Smart-UPS RT 20kVA RM 230V is a double-conversion online UPS with a 20kVA/16kW capacity, operating at 230V or 400V (configurable for three-phase output). Housed in a 12U rack/tower convertible design, it provides true online power protection for servers, networking equipment, telecom systems, and industrial applications. Its scalable runtime and advanced management capabilities make it ideal for environments requiring hours of backup power rather than minutes.
Key Specifications
- Output Power Capacity: 16,000 Watts / 20,000 VA
- Nominal Output Voltage: 230V (configurable for 220V, 240V, or 400/415V three-phase)
- Output Connections: 8x IEC 320 C19, 2x IEC Jumpers, 1x Hard Wire 3-wire (H N + G), 1x Hard Wire 5-wire (3PH + N + G)
- Input Voltage: 230V (single-phase) or 400V (three-phase), 160–280V range for main operations
- Input Frequency: 40–70 Hz (auto-sensing)
- Battery Type: Lead-acid, hot-swappable, 4x APCRBC140 modules
- Nominal Battery Voltage: ±192V (split battery referenced to neutral)
- Typical Recharge Time: 2.5 hours
- Runtime: Approximately 3 hours 16 minutes at half load (8kW), extendable with external battery packs
- Topology: Double-conversion online
- Waveform: Pure sine wave
- Efficiency: 93.7% in battery operation
- Communication Ports: DB-9 RS-232, RJ-45 10/100 Base-T, Smart-Slot (includes AP9631 Network Management Card)
- Physical Dimensions: 533mm (H) x 432mm (W) x 773mm (D), 247.73 kg
- Warranty: 2 years (repair or replace)
- Approvals: BSMI, EN/IEC 62040-1-1, EN/IEC 62040-2, VDE, RoHS compliant
Core Features of the SURT20KRMXLI
1. Double-Conversion Online Topology
Unlike line-interactive UPS systems, the SURT20KRMXLI uses double-conversion technology, providing zero transfer time to battery during power events. This ensures clean, uninterrupted power with tight voltage and frequency regulation, ideal for sensitive equipment like blade servers and telecom systems.
2. Pure Sine Wave Output
The UPS delivers a pure sine wave output, recommended for active power factor corrected (PFC) power supplies in modern servers. This minimizes compatibility issues and protects equipment from power irregularities.
3. Scalable Runtime
With four included battery modules and support for external battery packs, the SURT20KRMXLI offers extendable runtime. At half load (8kW), it provides an estimated 3 hours 16 minutes of backup power, making it suitable for applications requiring extended operation during outages.
4. Dual Mains Input
The UPS supports dual mains input, allowing connection to two separate power sources for increased availability. This redundancy is critical for data centers and industrial environments where downtime is costly.
5. Advanced Management and Monitoring
- LCD Display: A multifunction LCD console provides real-time data on system parameters, alarms, and diagnostics, simplifying local management.
- Network Management Card (AP9631): Included for remote monitoring and control via SNMP, web, or APC’s InfraStruXure Manager. Supports PowerChute Network Shutdown software for graceful system shutdowns.
- Smart-Slot: Allows customization with additional management cards for enhanced functionality.
6. Intelligent Battery Management
APC’s pioneering temperature-compensated charging maximizes battery life (3–5 years) by adjusting charge voltage based on temperature. Automatic self-tests and predictive replacement alerts ensure reliability, while hot-swappable batteries allow maintenance without powering down.
7. Flexible Installation
- Rack/Tower Convertible: Protects initial investment by supporting both rack and tower configurations.
- Single or Three-Phase Input: Offers wiring flexibility for diverse power environments.
- Removable Input/Output Wiring Tray: Simplifies installation and maintenance.
8. Robust Power Conditioning
The SURT20KRMXLI provides multi-pole noise filtering (0.3% IEEE surge let-through) and meets UL 1449 standards for surge protection, safeguarding connected loads from surges, spikes, and lightning.
9. Automatic and Manual Bypass
The UPS includes built-in static and internal bypass mechanisms, with an optional external bypass, ensuring utility power delivery during overloads or faults without interruption.
Benefits of the SURT20KRMXLI
1. Unmatched Reliability
The double-conversion topology and pure sine wave output ensure consistent power delivery, protecting critical systems like servers, data networks, and medical equipment from power disturbances.
2. Extended Runtime for Critical Loads
With a base runtime of over 3 hours at half load and support for additional battery packs, the SURT20KRMXLI meets aggressive runtime demands, ideal for data centers and industrial applications.
3. Cost Efficiency
High efficiency (93.7% in battery mode) and intelligent battery management reduce operating costs. The ability to use smaller generators and cabling further minimizes installation expenses.
4. Ease of Management
The included Network Management Card and PowerChute software enable remote monitoring, diagnostics, and automated shutdowns, reducing administrative overhead.
5. Versatility
The rack/tower convertible design, dual input capability, and support for single or three-phase wiring make the SURT20KRMXLI adaptable to various environments, from IT closets to industrial facilities.
Applications of the SURT20KRMXLI
The SURT20KRMXLI is designed for high-power, mission-critical applications, including:
- Data Centers: Protects blade servers, storage systems, and networking gear.
- Telecom Systems: Ensures uninterrupted operation for VoIP and communication infrastructure.
- Medical Labs: Safeguards sensitive diagnostic and imaging equipment.
- Industrial Applications: Supports automation systems and light industrial loads.
- Enterprise IT: Powers large server racks and critical IT infrastructure.
Limitations to Consider
- Size and Weight: At 247.73 kg and 12U, the SURT20KRMXLI requires significant rack space and structural support, which may be challenging for smaller setups.
- Noise: The unit produces 59 dBA at 1 meter, which may be noticeable in quiet environments.
- Battery Replacement Costs: The APCRBC140 battery modules (4 included) have a 3–5-year lifespan, and replacements can be costly depending on usage.
- Availability: Some retailers note the product is on request only or out of stock, which may affect procurement timelines.
Why Choose the APC Smart-UPS RT 20kVA RM 230V?
The APC Smart-UPS RT 20kVA RM 230V (SURT20KRMXLI) is a powerhouse for critical applications, offering double-conversion reliability, scalable runtime, and advanced management features. Its pure sine wave output, dual mains input, and high efficiency make it a trusted solution for data centers, telecom, and industrial environments. Backed by Schneider Electric’s reputation and a 2-year warranty, it ensures peace of mind for protecting high-value equipment.
Conclusion
For organizations requiring robust, high-capacity power protection, the APC Smart-UPS RT 20kVA RM 230V (SURT20KRMXLI) delivers unmatched performance and flexibility. Its double-conversion topology, extensive runtime options, and remote management capabilities make it a cornerstone for mission-critical systems. While its size, cost, and noise levels may not suit every environment, it’s an ideal choice for those prioritizing reliability and scalability.
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