In enterprise settings where three-phase power fuels data centers, industrial controls, and high-density IT, a dependable UPS is the linchpin of operational continuity. The APC Smart-UPS VT 20kVA 400V (SUVTP20KH4B4S) from Schneider Electric provides double-conversion online protection, delivering clean, uninterrupted power for 10-20kVA loads. This tower model includes four VRLA battery modules, an internal maintenance bypass, and parallel expansion options, making it suitable for mission-critical environments. This blog delves into its specifications, design, features, and applications to highlight its value in power-vulnerable setups.
Key Specifications at a Glance
The SUVTP20KH4B4S is tailored for 400V three-phase systems, with configurability for 380V or 415V. Key specs include:
| Specification | Details |
|---|---|
| Output Power Capacity | 16,000 Watts / 20,000 VA |
| Nominal Input Voltage | 400V 3-phase (380V, 415V supported) |
| Nominal Output Voltage | 400V 3-phase (380V, 415V supported) |
| Input Frequency | 40–70 Hz (auto-sensing) |
| Output Frequency | 50 Hz ±0.1% (unsynchronized); 47–53 Hz (synced) |
| Output Voltage Distortion | <5% at full load |
| Crest Factor | 3:1 |
| Battery Type | VRLA (Valve-Regulated Lead-Acid) |
| Included Battery Modules | 4 |
| Recharge Time | 5 hours |
| Runtime | ~18 minutes at full load; ~46 minutes at half load |
| Efficiency | 95.3% at full load |
| Dimensions (H x W x D) | 1490 x 523 x 842 mm |
| Weight | 599 kg |
| Connectivity | DB-9 RS-232, SmartSlot (with AP9631 card) |
| Output Connections | Hard Wire 4-wire (3PH + G), 5-wire (3PH + N + G) |
| Noise Level | 51.3 dBA |
| Operating Temperature | 0–40°C |
| Certifications | CE, C-Tick, EN/IEC 62040-3, ISO 14001/9001, RCM, VFI-SS-111 |
| Warranty | 1 year (repair/replace) + 5×8 start-up service |
These metrics ensure robust compliance and operation in diverse global environments.
Design and Build: Rugged and Modular for Easy Deployment
The SUVTP20KH4B4S features a compact tower design at just over 1.5 meters tall, with a narrow 52.3 cm width that suits tight server rooms or industrial spaces. Its 599 kg steel enclosure includes bolt-down brackets for stability, and front-access panels facilitate servicing without full disassembly. The four pre-installed VRLA modules are hot-swappable, allowing battery replacements under load, while the modular power architecture supports quick field upgrades.
A multi-function LCD console offers real-time status views, complemented by audible and visible alarms. Dual-mains inputs and built-in static/maintenance bypasses enable seamless generator integration and zero-downtime maintenance. With IP20 protection and a black finish, it’s engineered for durability in controlled settings, though its weight requires professional handling.
Standout Features That Prioritize Uptime
This UPS combines proven reliability with scalable intelligence:
- Double-Conversion Online Topology: Isolates loads from grid disturbances, providing a pure sine wave with <5% distortion—crucial for sensitive three-phase equipment.
- Parallel and Runtime Scalability: Connect up to four units for N+1 redundancy or add extended battery cabinets for longer autonomy, adapting to growing demands.
- Integrated Bypass System: Automatic internal bypass handles overloads or maintenance without interrupting power, targeting 99.999% availability.
- Intelligent Management: The pre-installed AP9631 Network Management Card supports SNMP, remote monitoring, and environmental sensors; integrates with PowerChute and InfraStruXure Manager for automated control.
- Battery Optimization: Temperature-compensated charging extends 3–5 year life, with automatic self-tests and cold-start capability.
- Eco and Service Focus: EU CoC-compliant for efficiency, plus included 5×8 start-up service for hassle-free installation.
These make it a versatile choice for proactive power defense.
Performance in Action
In deployments, the SUVTP20KH4B4S sustains 16kW full loads for about 18 minutes, extending to 46 minutes at half load (8kW), providing critical bridging time during outages. Its 95.3% efficiency reduces energy costs, and the wide input range (304–477V) excels with unstable grids or generators. Parallel configurations distribute loads evenly, while the 51.3 dBA operation remains unobtrusive in typical environments.
Users in data centers and manufacturing report reliable surge handling and seamless bypass transfers, with the LCD aiding quick diagnostics. Recharge completes in 5 hours, and modular swaps minimize downtime, supporting high-SLA operations effectively.
Ideal Applications: Fortifying Three-Phase Infrastructure
Optimized for medium-scale three-phase needs, the SUVTP20KH4B4S fits:
- Data Centers: Shields mid-sized server clusters and storage from fluctuations.
- Industrial Sites: Protects automation, PLCs, and motors in volatile power areas.
- Commercial Facilities: Backs HVAC, elevators, and IT in offices or retail.
- Healthcare: Ensures steady power for diagnostic and support systems.
- Telecom: Maintains network gear during regional blackouts.
It’s a solid legacy pick for 20kVA three-phase resilience.
Pros and Cons: Weighing Legacy Strengths
Pros:
- Strong 16kW/20kVA output with scalable parallelism.
- Extended runtimes (18 min full, 46 min half) for outage bridging.
- High 95.3% efficiency and hot-swap modularity.
- Comprehensive monitoring via network card.
- Included start-up service simplifies rollout.
Cons:
- Discontinued since 2021, potentially limiting new parts.
- Substantial 599 kg weight demands pro installation.
- Shorter baseline runtime without expansions.
- Moderate noise (51.3 dBA) in ultra-quiet spaces.
Its pros shine for refurbished or upgrade scenarios.
Final Thoughts: A Proven Defender for Three-Phase Power
The APC Smart-UPS VT 20kVA 400V (SUVTP20KH4B4S) endures as a benchmark in three-phase UPS tech, blending modularity, efficiency, and redundancy to combat downtime in critical setups. For reliable 20kVA protection, CONTACT US @ TIACO TECHNOLOGIES.
Have you deployed a VT-series UPS? Share your stories in the comments!