APC by Schneider Electric G35T15KF2B2S 15KVA/12KW 3-Phase Hardwire UPS
Overview
The APC by Schneider Electric G35T15KF2B2S is a 15KVA / 12KW three-phase uninterruptible power supply built for critical IT infrastructure, data center rows, and large office power distribution where single-phase protection isn't sufficient. It accepts input at 120V and delivers conditioned 208V output via a Hard Wire 4-Wire (3PH + N/G) connection — a direct-wired configuration suited for permanent installation feeding PDUs, transfer switches, or high-density server racks that require a hardwired feed rather than a plug-and-receptacle interface.
The hardwire output means installation is a licensed-electrician job at commissioning, but it also eliminates connector failure points at the load — a meaningful reliability consideration in facilities where uptime is measured in thousands of dollars per minute.
Key Features
- 12 kW / 15 KVA Output Capacity: At 12 kW real power, this unit can carry a dense rack or a mid-size server cluster at load — enough headroom for most single-row deployments without cascading to a second UPS.
- 208V 3-Phase Hard Wire Output: The 4-wire (3PH + N/G) hardwire termination integrates directly into a facility's distribution panel or downstream PDU, bypassing the plug rating limits that cap smaller UPS units at 20–30A branch circuits.
- 120V / 208V Voltage Range: Dual-voltage input/output architecture allows this unit to step between common North American distribution voltages, giving electrical contractors flexibility during infrastructure design.
- Commercial-Grade Power Protection: Designed for business-critical applications — data centers, telecommunications rooms, and large-scale office IT infrastructure — where even brief outages cause data loss or operational disruption.
Integration & Compatibility
As part of the APC by Schneider Electric Galaxy UPS line, the G35T15KF2B2S is designed to integrate with APC's EcoStruxure IT ecosystem and is typically managed via a network management card (sold separately). It is compatible with standard three-phase UPS infrastructure including APC-brand external battery enclosures for extended runtime. Consult your facilities and electrical team on upstream breaker sizing — a 15KVA / 12KW 3-phase UPS at full load draws significant current and requires appropriately rated distribution upstream. For storage and retention planning in adjacent IT systems, see the power protection category. Pairing with a monitored rack PDU downstream allows per-outlet load metering without additional infrastructure.
Frequently Asked Questions
Q: What is the output power rating of the G35T15KF2B2S?
A: The G35T15KF2B2S is rated at 15KVA / 12KW output capacity.
Q: What type of output connection does the G35T15KF2B2S use?
A: It uses a Hard Wire 4-Wire (3PH + N/G) output — a direct-wired, permanent installation connection rather than a plug-and-receptacle interface. Licensed electrical installation is required.
Q: What are the input and output voltages for the G35T15KF2B2S?
A: The unit operates at 120V input and 208V output based on available product identification data. Confirm exact input range and output tolerances with the manufacturer datasheet prior to installation.
Q: Does the G35T15KF2B2S require professional installation?
A: Yes. The hardwire output configuration requires a licensed electrician for both the upstream distribution feed and the downstream load connection. This is not a plug-in UPS.
Q: What environments is the G35T15KF2B2S designed for?
A: This is a commercial-grade unit designed for data centers, telecommunications infrastructure, and large-scale IT environments requiring three-phase power protection at the 12KW range.
The G35T15KF2B2S sits at 12KW real power output — the threshold where most single-row data center deployments stop needing a second UPS and start needing better upstream distribution planning instead. That hardwire 4-wire (3PH + N/G) output is the detail that separates this from rack-mount plug-in units: no NEMA connector, no 20A branch circuit ceiling, no receptacle rated at 80% of what your load actually needs.
Technical Highlights:
- 12KW / 15KVA Capacity: Sufficient for a dense compute row or mid-tier data center segment — at typical 70% loading best practice, you're sustaining ~8.4KW of continuous protected load with headroom for transient spikes.
- 208V Three-Phase Output: Directly feeds three-phase PDUs or transfer switches without a step-up transformer in the path — one less efficiency loss and one less failure point in the distribution chain.
- Hardwire 4-Wire Termination: The 3PH + N/G configuration supports both three-phase balanced loads and single-phase 120V branch loads simultaneously off the neutral — useful in mixed server/networking environments where not every device is three-phase capable.
Deployment Considerations:
- Upstream breaker sizing is the first conversation to have with your electrical contractor — a 12KW three-phase draw at 208V requires a correctly rated three-phase circuit breaker and appropriately gauged feeder cable; undersizing the upstream protection is a common commissioning error on UPS installs at this capacity.
- Full technical specifications including efficiency curve, battery runtime at various loads, transfer time, and management card compatibility should be confirmed from the APC Galaxy 350 series datasheet before finalizing the installation design — this SKU's configuration details go beyond what product naming alone confirms.
This unit is the right conversation starter for a facilities team commissioning a new data center row or expanding an existing UPS infrastructure from single-phase to three-phase coverage — particularly where the downstream distribution is already wired for hardwire termination at 208V.
