Description
Keep your critical servers and network gear online, protected, and easily expandable with the APC Symmetra RM SYH6K6RMT. This 8-U, double-conversion online UPS delivers 6 kVA / 4.2 kW of clean, sine-wave power with N+1 modular redundancy—so even if a power module fails, your load stays protected. Three hot-swappable power modules and three battery modules are pre-installed, leaving one free slot for future growth. A pre-installed Network Management Card 2 provides remote monitoring, environmental sensing, and graceful shutdown capabilities. With 89 % efficiency at full load, a 4-hour recharge time, and flexible 208 or 240 V output configuration, the Symmetra RM is the dependable power backbone for space-constrained data-center racks, edge closets, and telecom applications.
Key benefits
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True double-conversion online topology for zero-transfer protection
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Scalable power & runtime in 2 kVA, 3-battery increments
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Built-in N+1 redundancy for maximum availability
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Hot-swappable power & battery modules—no downtime for maintenance
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Remote management via SNMP/web, plus front-panel LCD
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Internal & manual bypass for safe service without shutting down loads
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Two-year repair-or-replace warranty, extendable on-site coverage available
| Category | Specification |
|---|---|
| Model / SKU | SYH6K6RMT |
| Topology | Double-Conversion Online |
| Power Capacity | 6 kVA / 4,200 W (max configurable) |
| Redundancy | N+1 (3 × 2 kVA power modules installed, 1 free slot) |
| Input Voltage | 208 V (configurable for 240 V) |
| Input Connection | NEMA L6-30P, 10 ft (3.05 m) cord |
| Input Frequency | 50/60 Hz ± 5 Hz, auto-sensing |
| Output Voltage | 208 V nominal (user-configurable 208/240 V) |
| Output Connections | 2 × NEMA L6-20R, 1 × NEMA L6-30R |
| Waveform | Pure sine wave |
| Efficiency (AC-AC) | 89 % at full load |
| Battery Type / Modules | Lead-acid, 3 × hot-swappable modules (0 empty slots) |
| Runtime @ Full Load | 12 min 44 s (4.2 kW) |
| Recharge Time | ≈ 4 hours to 100 % |
| Extendable Runtime | Yes (external battery cabinets supported) |
| Management | Network Management Card 2 (pre-installed), LCD panel, 1 SmartSlot |
| EPO | Yes |
| Rack Units / Form Factor | 8 U, rack-mount |
| Dimensions (H × W × D) | 14.02 × 19.02 × 28.74 in (35.6 × 48.3 × 73 cm) |
| Net Weight | 294.63 lb / 133.64 kg |
| Operating Temp. / Humidity | 32–104 °F (0–40 °C) / 0–95 % RH (non-condensing) |
| Audible Noise | 60 dBA |
| Certifications | UL 1778, CSA, FCC Part 15 Class A |
| GTIN | 731304740278 |
| Warranty | 2-year repair-or-replace (upgradeable to on-site/extended) |
Payment & Security
Your payment information is processed securely, and we do not store credit card details or access your credit card information.
Return Policy (Short Summary)
We offer a 30-day return window for most unopened, factory-sealed items.
Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.
Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.
For damaged or incorrect items, please contact us immediately.
From Scope to Sign-Off
A structured delivery process designed to reduce risk and keep projects moving.
Plan
Discovery, site review, requirements gathering, and project alignment. We define scope, constraints, and success criteria before any design work begins.
- Discovery calls & stakeholder interviews
- On-site survey & infrastructure review
- Requirements & use-case documentation
- Project scope, timeline & milestone alignment
Engineer
System design, schematics, signal flow, BOM development, and documentation. Every project leaves this phase with a complete engineering package.
- AV system design & signal flow diagrams
- Equipment selection & BOM development
- Rack layout & control system design
- As-built documentation package
Deploy
Procurement, logistics, installation, programming, commissioning, and training. We own the delivery from first shipment to final handoff.
- Authorized procurement & logistics coordination
- Physical installation & cable management
- Control system programming & configuration
- Commissioning, testing & end-user training
Support
Monitoring, maintenance, lifecycle planning, and long-term service agreements. We stay engaged long after project close.
- 24/7 remote system monitoring
- Preventive & reactive maintenance
- Technology lifecycle & refresh planning
- Long-term service level agreements
A decade of delivery — trusted by 275+ clients across industries
