Brand: APC | Category: UPS & Power Protection
SKU: SYA4K8I | Part #: SYA4K8I | MPN: SYA4K8I
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The APC Symmetra LX SYA4K8I is an uninterruptible power supply rated at 4 kVA / 2800 W output, scalable to 8 kVA. It delivers single-phase sine wave output via hardwire connection and supports single-phase input at 220 V and 240 V, with a maximum input current of 18 A. An Emergency Power Off (EPO) function is included.
Typical backup time is 20 minutes at half load and 7.5 minutes at full load, with a battery recharge time of 3 hours. The unit uses the SYBT5 replacement battery cartridge, which the end user can replace. There is no preferred mounting position.
This UPS suits server rooms, network closets and other IT environments where connected equipment needs clean, conditioned power and short-term backup during outages, with the option to scale capacity as load requirements grow.
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| Brand | APC |
| Category | UPS & Power Protection |
| SKU | SYA4K8I |
| Part Number | SYA4K8I |
| Condition | New |
| AC outlet types | Hardwire |
| Emergency Power Off (EPO) | Yes |
| Three-phase input voltage supported | 220,380,400,415 V |
| Single-phase input voltage supported | 240,220 V |
| Number of output phases | 1 |
| Number of input phases | 1 |
| Waveform | Sine |
| Output power | 2800 W |
| Output power capacity | 4 kVA |
| Input current (max) | 18 A |
| Replacement battery cartridge | SYBT5 |
| Battery recharge time | 3 h |
| Typical backup time at half load | 20 min |
| Typical backup time at full load | 7.5 min |
| Battery replacement accessibility | End-user |
| Sustainable packaging | No |
| Packaging recycled materials | Recycled cardboard |
| SCIP number | 2d54512b-134b-4bf3-ab6e-849ecf1e3919 |
| Preferred mounting position | no preference |
| Take-back system | No |
| Packaging without single use plastic | No |
| Product colour | Black, Silver |
| Operating altitude | 0 - 3000 m |
| Storage relative humidity (H-H) | 0 - 95% |
| Operating relative humidity (H-H) | 0 - 95% |
| Storage temperature (T-T) | -15 - 45 °C |
| Operating temperature (T-T) | 0 - 40 °C |
| Nominal output voltage | 230 V |
| Output voltage note | Configurable for 220: 230 or 240 nominal output voltage |
| Output connection type | hard wire 3-wire (H N + E) for 1 zone(s) |
| Output voltage | 220 V |
| Mounting | front |
| Dimensions (WxDxH) | 480 x 730 x 660 mm |
| Input connection type | Hard Wire 3 wire (1PH+N+G) |
| Output connections | (1) Hard Wire 3-wire (H N + G) |
| Interface | DB-9 RS-232, Smart-Slot |
| Battery type | Maintenance-free sealed Lead-Acid battery with suspended electrolyte: leakproof |
| I/O ports | Available Smart Slot Interface Quantity - 1 Pre-Installed SmartSlot Cards - AP9619 |
| Weight | 157.7 kg |
| Height | 671 mm |
The APC Symmetra LX 4kVA Scalable to 8kVA UPS SYA4K8I delivers conditioned, backed-up power for server rooms and data-center racks. Use cases include short-term ride-through during grid sag/spike events, graceful shutdown of critical compute, and runtime extension via external battery packs.
Key specifications for the APC Symmetra LX 4kVA Scalable to 8kVA UPS SYA4K8I: new condition; ac outlet types Hardwire; emergency power off (epo) Yes; three-phase input voltage supported 220,380,400,415 V; single-phase input voltage supported 240,220 V; number of output phases 1; number of input phases 1. Manufacturer part number SYA4K8I. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.