APC by Schneider Electric GVSUPS15KFS-A 15kW Three-Phase Double-Conversion Tower UPS
Overview
The APC by Schneider Electric Galaxy VS GVSUPS15KFS-A is a 15kW, three-phase, double-conversion online UPS built for data centers, critical infrastructure rooms, and business-continuity deployments where a single point of power failure cannot be tolerated. This is a battery-external configuration — it ships as the UPS module alone, giving integrators the flexibility to size battery autonomy to the actual runtime requirement rather than accepting a fixed internal pack. It connects via hard-wire 5-wire (3P + N + E) on both input and output, which is the correct termination method for a unit of this class; plan accordingly at rough-in. GVSUPS15KFS-A (often searched as GVSUPS15KFS A) is the North American SKU for 208V output environments.
Double-conversion online topology means utility power is continuously rectified to DC, then re-inverted to clean AC — the load never touches raw mains. That translates to zero transfer time on outage (true 0ms), full isolation from sags, swells, harmonics, and frequency excursions. For sensitive switching gear, VoIP infrastructure, or surveillance NVR arrays, this is the architecture that prevents spontaneous reboots and file-system corruption that cheaper line-interactive units cannot prevent.
Key Features
- 15kW Three-Phase Output at 208V: Delivers 200/208/220V AC selectable output — practical for mixed North American data center environments where some loads expect 208V and others 220V. Right-sizing at 15kW covers mid-tier server rooms or consolidated edge stacks without the cost and footprint of a 20kW-class frame.
- Double-Conversion Online Topology with True Sine Wave Output: Continuously re-synthesizes AC from the DC bus, so output waveform quality is independent of what the utility delivers. Sine wave output (not stepped approximation) is required by most server PSUs and UPS-intolerant motor loads to avoid overheating and derating.
- Wide Input Voltage Range — 177V to 239V AC: Accepts a 62V input swing before switching to battery. In facilities with notoriously soft mains or long feeder runs, this headroom keeps the batteries in reserve rather than cycling them constantly on brownouts — which extends battery service life meaningfully.
- External Battery Architecture (0 Internal Batteries): Ships with zero batteries by design. Pair with APC Galaxy VS-compatible external battery modules (EBMs) to dial in exactly the runtime your criticality tier demands — 5 minutes for generator-transfer bridging or 30+ minutes for extended outages. Internal-battery UPS units in this power class lock you into a fixed runtime you cannot expand in the field.
- Hard-Wire 5-Wire (3P + N + E) Input and Output: A single output receptacle in the same hard-wire format. This is a permanent installation device — it expects a licensed electrician at commissioning, a dedicated circuit breaker, and conduit runs. Not appropriate for plug-and-play deployments; it is appropriate for anything that matters enough to protect at this power class.
- 40°C Maximum Operating Temperature: Rated to 104°F ambient, which covers most equipment rooms without supplemental precision cooling — though note that 40°C is the ceiling, not a comfort zone. Thermal dissipation is 821W, so HVAC sizing still matters in sealed enclosures.
- Tower Form Factor — 58.5
