When it comes to protecting critical infrastructure from power disruptions, few solutions match the reliability and versatility of the APC Smart-UPS RT 20kVA RM 230V (SURT20KRMXLI). Built by APC by Schneider Electric, a leader in power management, this rack-mounted uninterruptible power supply (UPS) delivers high-density, double-conversion online power protection for demanding environments like data centers, telecom setups, and industrial applications. Let’s explore what makes the SURT20KRMXLI a powerhouse worth considering for keeping your systems running smoothly.
What Is the APC Smart-UPS RT 20kVA RM 230V?
The SURT20KRMXLI is a 20kVA (20,000 VA) UPS with a power output of 16kW, designed to provide uninterrupted, clean power to high-load equipment. Operating at 230V (with flexibility for 220V or 240V output), it’s a rack-mountable unit that fits into a 12U space, making it ideal for server rooms or IT closets where space is at a premium. This model belongs to APC’s Smart-UPS RT (Real-Time) line, known for its online double-conversion technology, which ensures zero transfer time to battery power during outages—a must for mission-critical systems.
It’s not just about backup power; the SURT20KRMXLI also conditions incoming electricity, protecting against surges, spikes, and noise that could harm sensitive electronics. With its robust design and scalable runtime options, it’s a favorite for businesses that can’t afford downtime.
Key Features
- 20kVA/16kW Capacity: Handles substantial loads—perfect for blade servers, networking gear, or industrial equipment.
- Online Double-Conversion: Converts incoming AC power to DC and back to AC, delivering a pure sine wave output for maximum compatibility and stability.
- Scalable Runtime: Add external battery packs (like the SURT192RMXLBP2) to extend runtime from minutes to hours.
- LCD Display: A detailed, alpha-numeric interface provides real-time stats on load, battery health, and system status.
- Flexible Connectivity: Offers 8 IEC C19 outlets, plus hardwire options (3-wire or 5-wire), and includes a pre-installed Web/SNMP management card for remote monitoring.
- Dual Mains Input: Boosts availability by allowing connection to two separate power sources.
- Rack/Tower Convertible: Comes with rack rails but can adapt to tower setups if needed.
How Does It Work?
The SURT20KRMXLI uses double-conversion technology, meaning it continuously processes power through its inverter, ensuring a consistent output regardless of input quality. When utility power fails, it switches to its four included battery modules with zero delay, keeping your gear online. The system also features automatic voltage regulation to handle minor fluctuations without tapping the battery, preserving runtime for true emergencies.
Setup is straightforward: hardwire it to your power source (single-phase or three-phase input supported), connect your devices via the IEC C19 outlets or hardwire outputs, and use the included RS-232 cable or network card to integrate with management software like PowerChute. The LCD screen simplifies local monitoring, while the SNMP card enables remote oversight—a boon for IT teams managing multiple sites.
Why Choose the SURT20KRMXLI?
Power isn’t just about keeping the lights on—it’s about protecting investments and ensuring uptime. Here’s why this UPS shines:
- High-Density Power: At 16kW, it supports power-hungry racks or critical systems without breaking a sweat.
- Zero Downtime: The double-conversion design and instant failover mean no interruptions, even during blackouts.
- Customizable Runtime: Need hours instead of minutes? External battery packs make it possible.
- Resilience: Built to handle harsh environments, it’s a fit for everything from medical labs to factory floors.
- Smart Management: Remote monitoring and automatic shutdown capabilities keep you in control.
Runtime at full load (16kW) is around 4-9 minutes with the stock batteries, but lighter loads (say, 70% or 11kW) can stretch that to over 9 minutes. Add battery packs, and you’re looking at hours—perfect for extended outages.
Pros and Cons
Pros:
- Unmatched reliability with double-conversion tech.
- Scalable runtime for tailored needs.
- Comprehensive monitoring via LCD and network card.
- Flexible input/output options for diverse setups.
- Solid 2-year warranty.
Cons:
- Heavy (nearly 250 kg), so installation requires planning.
- Battery replacements (APCRBC140) can be costly after 3-5 years.
- Pricey upfront—geared more toward businesses than home users.
Installation and Maintenance
Installing the SURT20KRMXLI takes some muscle due to its weight (247.73 kg), so you’ll need a team or a lift for the 12U rack placement. Connect it to your mains via hardwire (3-wire or 5-wire), attach your devices, and secure the rack rails (included). For optimal performance, ensure proper ventilation—heat shortens battery life.
Maintenance is minimal but essential. The UPS runs self-tests to flag battery issues, and hot-swappable batteries mean you can replace them without powering down. Expect to swap batteries every 3-5 years, depending on usage and environment. Keep the unit clean and check the LCD for alerts to stay ahead of problems.
Who Should Buy It?
This UPS is overkill for a home office but perfect for:
- Data centers with blade servers or dense racks.
- Telecom setups needing constant uptime.
- Businesses in areas with unreliable power grids.
- Industrial or medical facilities with sensitive equipment.
If you’re powering a single PC or small router, a lower-capacity model like the APC Back-UPS would suffice. But for serious loads, the SURT20KRMXLI is a beast.
Final Thoughts
The APC Smart-UPS RT 20kVA RM 230V (SURT20KRMXLI) is a premium solution for anyone who can’t compromise on power reliability. Its double-conversion technology, scalable design, and smart management features make it a standout in the UPS world. Yes, it’s an investment—expect to spend upwards of $10,000-$15,000 depending on your region—but for businesses where downtime equals lost revenue, it’s a small price to pay. Whether you’re safeguarding servers, network infrastructure, or industrial systems, this UPS delivers peace of mind in a sleek, rack-ready package.
Want more details on runtime or pricing? CONTACT US @ TIACO TECHNOLOGIES. In a world where power isn’t always predictable, the SURT20KRMXLI ensures you’re always prepared.