APC by Schneider Electric MGE Galaxy 3500 15KVA 400V - G35T15KH4B4S

APC by Schneider Electric G35T15KH4B4S MGE Galaxy 3500 15KVA 400V 3-Phase UPS

Overview

The APC by Schneider Electric G35T15KH4B4S is a 15 kVA / 12,000 W three-phase double-conversion UPS designed for data centers, industrial control rooms, and enterprise infrastructure where a brownout, sag, or sustained outage cannot be tolerated. Rated at 400V input/output with full VFI-SS-111 classification, it provides true online double-conversion power — every watt of load runs through the inverter continuously, isolating connected equipment from every grid anomaly, not just outages. If you're protecting server rows, network infrastructure, or process-control gear that can't absorb voltage swings, that architecture distinction matters. Explore the broader APC by Schneider Electric catalog for complementary power protection products.

Key Features

• 15 kVA / 12,000 W Output Capacity: The 0.8 power factor rating is honest — 12 kW of real usable power per frame. Size your load accordingly; oversizing the UPS by 20–25% leaves headroom for inrush and future expansion without a forklift upgrade.
• VFI-SS-111 Double-Conversion (Online): The IEC/EN 62040-3 VFI classification means voltage and frequency are fully independent of input — the inverter is always running. Connected gear never rides dirty mains, and transfer time to battery is effectively zero. This is the architecture you need for VMware/Hyper-V clusters, SAN arrays, or anything with a strict voltage tolerance spec.
• 400V 3-Phase Input, 40–70 Hz Acceptance Window: The wide frequency window (40–70 Hz) handles generator output that drifts during startup — a critical spec for sites that rely on a genset as the primary backup source. The UPS will ride through the generator stabilization period rather than switching to battery unnecessarily.
• Emergency Power Off (EPO): Hardware EPO is built in, enabling integration with building safety systems and data center EPO bus. Required by code in many raised-floor environments — confirm with your local AHJ before commissioning.
• Sealed Lead Acid (VRLA) Battery, 5-Hour Recharge: VRLA chemistry means no venting requirements and no dedicated battery room in most jurisdictions. The 5-hour full recharge time is relevant for sites with multiple grid events per day — factor that against your expected discharge depth and recovery window.
• 4 Replacement Battery Cartridges: The modular 4-cartridge design supports hot-swap battery replacement, enabling preventive maintenance without a maintenance bypass procedure in most configurations. Plan the battery replacement cycle based on the 3–5 year VRLA service life typical for continuously float-charged installations.
• 51.3 dB Acoustic Output: Measurably quiet for a 15 kVA frame — acceptable in open office-adjacent server rooms. At 51.3 dB it sits roughly at conversation-level noise, though acoustic impact still depends on room acoustics and distance from the unit.
• Operating Range 0–40°C, 0–95% RH (Non-Condensing): Standard data center environmental envelope. The 0°C lower bound means this unit is not rated for unheated spaces in winter climates — verify your minimum ambient before deploying in a warehouse or exterior enclosure.
• Certifications — CE, ISO 9001, ISO 14001, IEC 61000-3-2/3-3: IEC 61000-3-2 and 61000-3-3 compliance confirms the UPS meets conducted emissions and harmonic current limits for connection to public low-voltage networks — relevant when your facility's utility interconnect agreement requires it. ISO 9001 and ISO 14001 apply to the manufacturing process, not the product performance, but both are common procurement checklist requirements for enterprise and government buyers.

Integration & Compatibility

The G35T15KH4B4S operates on 400V three-phase input, standard for European and international commercial electrical infrastructure. Sites running 208V or 480V North American distribution will need a transformer or a different model. The EPO input allows connection to centralized facility shutdown systems — verify contact type (normally open vs. normally closed) against your building management system before wiring. For a complete power protection deployment, pair this UPS with a compatible enterprise UPS and power distribution strategy including PDUs and remote monitoring. Altitude derating applies above 1,000 m — the unit is rated to 999.9 m operating altitude; consult the manufacturer for correction factors above that threshold. Non-operating altitude extends to 15,000 m, covering standard air-freight shipping without special pressurization.

Frequently Asked Questions

Q: What is the actual usable power output of the G35T15KH4B4S, and how does the kVA rating relate to watts?

A: The G35T15KH4B4S is rated 15 kVA with a 0.8 power factor, yielding 12,000 W (12 kW) of real power output. When sizing your load, use the 12 kW figure against your actual connected equipment wattage — not the kVA number.

Q: Does the G35T15KH4B4S support generator input?

A: Yes. The 40–70 Hz input frequency acceptance range is specifically useful with diesel generators, which often produce off-frequency output during startup and load transitions. The UPS will remain in online mode through generator frequency stabilization rather than switching to battery.

Q: Can the batteries be replaced without shutting down the load?

A: The G35T15KH4B4S uses 4 modular VRLA battery cartridges designed for hot-swap replacement. In most configurations this allows battery maintenance without a bypass event, but confirm the specific procedure with the maintenance documentation for your firmware version and configuration.

Q: What input voltage and phase does the G35T15KH4B4S require?

A: This unit requires 400V three-phase input, which is the standard commercial/industrial voltage in Europe and many international markets. It is not designed for 120/208V or 480V North American single-phase or three-phase distribution without a step-up/step-down transformer.

Q: What certifications does the G35T15KH4B4S carry?

A: Verified certifications include CE, EN 50091-2, EN/IEC 62040-3, EN/IEC 62040-1-1, IEC 61000-3-2, IEC 61000-3-3, ISO 14001, ISO 9001, and VFI-SS-111 double-conversion classification.

Q: What are the operating environmental limits for the G35T15KH4B4S?

A: Operating temperature range is 0–40°C; operating relative humidity is 0–95% (non-condensing); operating altitude is 0–999.9 m. The unit should not be deployed in environments outside these parameters without consulting the manufacturer for derating guidance.

Marty Allison

When I look at the G35T15KH4B4S, the spec that immediately frames the deployment conversation is the VFI-SS-111 classification under IEC/EN 62040-3. That's not a marketing label — it's a testable IEC standard confirming true double-conversion operation: voltage-independent, frequency-independent, and with zero transfer time to battery. At 15 kVA / 12 kW on a 400V three-phase feed, this is a serious infrastructure UPS, not a departmental box.

Technical Highlights:

• VFI-SS-111 Double-Conversion: Every watt of load runs through the inverter continuously — no transfer gap, no tolerance for input voltage sags or spikes reaching connected equipment. This is the architecture requirement for virtualization hosts, SAN storage, and precision process-control systems.
• 40–70 Hz Input Frequency Window: Wider than the typical 47–53 Hz utility-only window. This matters practically when your backup power source is a diesel generator — the UPS absorbs frequency drift during generator start and stabilization rather than forcing a battery transfer event.
• 4-Cartridge VRLA Battery Architecture: Modular hot-swap design supports preventive battery replacement on a rolling basis. VRLA chemistry eliminates venting requirements, simplifying the room classification and installation cost compared to flooded-cell alternatives.

Deployment Considerations:

• Operating altitude ceiling is 999.9 m. Sites above 1,000 m (mountain campuses, high-elevation data centers) require manufacturer derating consultation before commissioning — thermal and cooling assumptions change at elevation.
• The 0°C lower operating temperature limit is a hard constraint. Unheated equipment rooms, exterior enclosures, or loading dock closets in cold climates can breach this spec during winter shutdowns — verify your minimum ambient independently.

The G35T15KH4B4S is the right specification for a 400V three-phase European or international data center row requiring IEC-verifiable double-conversion protection at the 12 kW real-power tier — particularly in environments where generator input compatibility and hot-swap battery maintenance without bypass procedures are non-negotiable operational requirements.