Description
Protect mission-critical IT loads with the APC Symmetra RM SYH4K6RMT—a modular, double-conversion online UPS that grows with your business. Start at 4 kVA and scale to 6 kVA N+1 redundancy simply by adding hot-swappable power and battery modules, all while your equipment stays online.
Key benefits
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Always-on power – True double-conversion isolates equipment from surges, sags & noise.
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Scalable & redundant – Four power-module slots (2 pre-installed) deliver 4 kVA capacity today, 6 kVA N+1 tomorrow.
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Extended runtime – Add up to two extra battery packs for longer outages.
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Smart management – Built-in Network Management Card 2 with environmental monitoring and APC EcoStruxure™ readiness.
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Data-center-friendly – Only 8 U high, front-mount rails included, 89 % efficiency at full load, and quiet 60 dBA operation.
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Peace of mind – 2-year repair/replace warranty, CSA / UL 1778 compliance, and full APC global support.
| Category | Specification |
|---|---|
| SKU / Model | SYH4K6RMT |
| Topology | Double-Conversion Online |
| Power Capacity | 4 kVA / 2 800 W (scalable to 6 kVA / 4 200 W) |
| Redundancy | N+1 with hot-swappable power modules |
| Input | 208 V (configurable 208 / 240 V) | 50/60 Hz auto-sensing | NEMA L6-30P |
| Power Factor (Full Load) | 0.98 |
| Output | 208 V pure sine wave (configurable 208 / 240 V) |
| Outlets | 2 × NEMA L6-20R, 1 × NEMA L6-30R (hard-wired bypass available) |
| Max. Runtime @ Full Load | 12 min 43 s (extendable with extra battery packs) |
| Battery Type / Qty | Lead-acid; 2 × hot-swappable battery modules (2 empty slots) |
| Recharge Time | 4 h to 90 % |
| Efficiency | 89 % (AC-AC, full load) |
| Network & Alarms | 1 SmartSlot (pre-installed NMC 2); LCD panel; audible & configurable alarms; EPO port |
| Dimensions (H × W × D) | 14.02 × 19.02 × 28.74 in (35.6 × 48.3 × 73 cm) — 8 U |
| Net Weight | 229.5 lb / 104.1 kg |
| Environmental | 0 – 40 °C operating; 0 – 95 % RH (non-condensing) |
| Certifications | CSA, UL 1778, FCC Class A |
| Warranty | 2-year repair/replace (extended & on-site options available) |
| GTIN | 731304740186 |
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