APC by Schneider Electric SYA8K16PX798 8kVA Scalable N+1 Tower UPS
Overview
The APC Symmetra LX SYA8K16PX798 is an 8,000 VA double-conversion online UPS designed for enterprise infrastructure environments where power interruptions are not an option. Starting at 8kVA and scalable to 16kVA, it pairs modular capacity growth with N+1 redundancy — meaning a single power module failure will not take your load offline. If you're protecting a mid-size data room, a broadcast head-end, or a dense network closet drawing 208V hardwired power, this is the architecture that keeps the load up regardless of what the utility delivers. The tower form factor fits on the floor or in a purpose-built enclosure without consuming rack space. Note that the web/SNMP management card ships separately with this configuration — factor that into your network monitoring plan before commissioning.
Key Features
- Double Conversion Online Topology: The SYA8K16PX798 runs your load entirely off its inverter output at all times, isolating connected equipment from every form of utility anomaly — sags, swells, harmonics, and full outages. There is zero transfer time on loss of utility power because the load is never on bypass during normal operation. For server rooms or control systems that cannot tolerate even a 10ms switchover gap, this is the topology that eliminates the risk.
- 8kVA / Scalable to 16kVA: The unit ships at 8,000 VA of usable output capacity but the chassis accommodates expansion to 16kVA by adding power modules — no forklift upgrade required. If you're commissioning a growing facility, starting at 8kVA and buying power modules as load increases is a practical capital-efficiency strategy rather than over-specifying from day one.
- N+1 Redundancy Architecture: A redundant power module is included in the design so that any single module failure leaves the full rated load still supported. In a 24/7 operation — particularly one without an on-site electrician available around the clock — N+1 means you have time to schedule a repair without an emergency shutdown. This is the key differentiator from a standard single-module UPS at this VA class.
- Hard Wire 4-Wire Output (2PH+N+G): Output connects via a hardwired 4-wire termination (two hot phases, neutral, and ground) rather than standard NEMA receptacles. This is appropriate for permanent equipment installs drawing sustained high current — panel-level connections handle the load without the thermal cycling risk of plug-in receptacles at high amperage. Plan for a licensed electrician at commissioning; this is not a plug-and-play deployment.
- 208V / 240V Input Compatibility: The nominal input voltage is 208V, compatible with the two-phase commercial wiring standard common in North American data centers and equipment rooms. Verify your facility's panel voltage before ordering — this unit is not intended for standard 120V single-phase circuits.
- Lead-Acid Battery Technology: Uses valve-regulated lead-acid (VRLA) batteries — a well-understood, field-serviceable chemistry with a wide replacement parts ecosystem. When runtime ends or batteries age out, replacement battery cartridges (RBC) are available through the APC channel, making lifecycle planning straightforward rather than dependent on proprietary cell formats.
- Removable Input/Output Wiring Tray: The wiring tray design allows field technicians to disconnect and re-route conductors without removing the entire chassis. In a tight equipment room or during a scheduled maintenance window, this substantially reduces the time and complexity of any rewiring task.
- RoHS Compliant, Mercury-Free: Meets RoHS environmental standards and contains no mercury — relevant for facilities with disposal or environmental compliance requirements, and increasingly required in government and enterprise procurement specifications.
- 2-Year Manufacturer Warranty: The SYA8K16PX798 carries a 24-month standard manufacturer warranty on the core product, with a lifetime equipment protection policy available. Budget accordingly for extended coverage if the deployment is in a mission-critical environment with long refresh cycles.
Integration and Compatibility
This configuration ships without the network management card — the web/SNMP card must be ordered separately. Before commissioning, confirm which APC by Schneider Electric network management card (AP9631 or similar) is current-generation for this chassis, as card compatibility varies by UPS family and firmware revision. Once the card is installed, the unit integrates with APC PowerChute Network Shutdown for graceful OS-level shutdown orchestration across connected servers — essential in a virtualized environment where uncontrolled VM crashes carry data-loss risk. EcoStruxure IT cloud monitoring is also compatible for organizations running centralized power infrastructure visibility. For facilities with existing power protection and UPS infrastructure, verify that the Symmetra LX chassis is supported by your current management software version before deployment. Electrical integration requires a dedicated 208V two-phase circuit; coordinate with your facilities team on breaker sizing based on the 8kVA (or scaled) load plus appropriate headroom per NEC guidelines.
What's in the Box
Based on verified product evidence, the SYA8K16PX798 includes the following in the package:
- 1x CD with software
- 1x Installation guide
- 1x User manual
- 1x Web/SNMP Management Card (note: per product configuration, web card ships separately — confirm inclusion at time of order)
Frequently Asked Questions
Q: Does the SYA8K16PX798 include a network management card for SNMP monitoring?
A: No. This configuration ships with the web/SNMP management card listed as a separate item. You will need to order a compatible APC network management card (such as the AP9631) separately if remote monitoring or PowerChute Network Shutdown integration is required.
Q: What is the warranty on the SYA8K16PX798?
A: The core product carries a 24-month standard manufacturer warranty. A lifetime equipment protection policy is also available — contact APC or your procurement channel for terms and pricing on the extended coverage option.
Q: Can the SYA8K16PX798 be expanded beyond 8kVA without replacing the chassis?
A: Yes. The Symmetra LX platform is designed for in-place scalability — the chassis supports expansion to 16kVA by adding power modules, so you can grow capacity as your load increases without replacing the base unit.
Q: What input voltage does the SYA8K16PX798 require?
A: The nominal input voltage is 208V, consistent with two-phase commercial wiring common in North American data centers and equipment rooms. This unit is not compatible with standard single-phase 120V circuits. Verify your facility's panel voltage before ordering.
Q: Does the SYA8K16PX798 use a standard plug or hardwired connection?
A: Output is via hardwire 4-wire termination (2PH+N+G) — there are no NEMA receptacles on the output side. Installation requires a licensed electrician for both the input feed and the output connection to your load distribution panel or PDU.
Q: What battery type does the SYA8K16PX798 use, and are replacements available?
A: The unit uses valve-regulated lead-acid (VRLA) batteries. APC publishes replacement battery cartridge (RBC) part numbers for the Symmetra LX family, making end-of-life battery replacement a plannable maintenance event rather than a chassis replacement trigger.
The SYA8K16PX798 is the unit I recommend when a facility operator has a defined 208V hardwired load today but knows they're adding capacity over the next 18–36 months. The double-conversion online topology means the inverter is always carrying the load — not just switching in during an outage — so the quality of power your servers and storage see is completely decoupled from whatever the utility is doing. At 8,000 VA scalable to 16kVA in the same chassis, you're not ripping and replacing when you add another rack.
Technical Highlights:
- Double Conversion Online: Zero transfer time on utility loss — the inverter is always carrying the load, so there's no 10–20ms gap that virtualization hosts and storage arrays would otherwise see as a brief power event.
- N+1 Redundancy: A failed power module does not take the load down. In facilities without round-the-clock electrical staff, that means a daytime repair window instead of a 2am emergency response.
- Hardwire 4-Wire Output: The 2PH+N+G termination handles sustained high-current loads cleanly — no NEMA receptacle thermal cycling at 8kVA draw. This is the correct output architecture for a permanent equipment room install, not a temporary deployment.
Deployment Considerations:
- The web/SNMP management card does not ship with this SKU — order it separately before commissioning if PowerChute Network Shutdown or EcoStruxure IT visibility is part of your management plan. Discovering this gap post-install adds a service call.
- At 482.99 lb (219 kg), this unit requires equipment-rated flooring, a pallet jack, and two-person placement. Factor rigging and facilities coordination into the installation timeline — this is not a one-tech rollout.
The SYA8K16PX798 fits best in a mid-size enterprise data room or network operations center running 208V two-phase infrastructure where N+1 redundancy is a stated uptime requirement and load growth over a multi-year horizon makes in-chassis scalability worth the per-kVA premium over a fixed-capacity alternative.
