APC by Schneider Electric LIBSESMG17IEC Galaxy Li-Ion Battery Cabinet
Overview
The LIBSESMG17IEC is a high-capacity lithium-ion battery cabinet engineered for large-scale three-phase UPS systems in the Galaxy lineup. Packaging 17 battery modules at 2.04 kWh each — totaling 34.68 kWh of usable energy — into a single enclosed cabinet, it consolidates the battery plant, Battery Management System, switchgear, power supply, and communication interface behind one powder-coated white enclosure. If you're sizing backup for a data center row, critical comms room, or industrial facility where VRLA strings are eating floor space and adding maintenance overhead, this cabinet is worth a hard look.
The assembly ships as a single package unit (PCE), dimensioned at 1200 mm L × 800 mm W × 2150 mm H and weighing 500 kg packaged — plan crane or pallet jack access to the installation point before the delivery truck arrives.
Key Features
- Samsung Li-Ion Cells at 516.8 V: Operating at 516.8 V DC bus voltage with Samsung lithium-ion cells, the cabinet delivers the voltage profile required by Galaxy three-phase UPS systems without field-assembling individual strings. Samsung sourcing means consistent cell chemistry across modules — critical for battery management accuracy over the cabinet's service life.
- 17 × 2.04 kWh Modular Architecture: Each of the 17 modules contributes 2.04 kWh, producing a cabinet-level 34.68 kWh. The modular approach matters operationally: if a future module swap is needed, the architecture supports it without pulling the entire cabinet — reducing downtime exposure on a replacement event.
- 67 Ah Capacity: At 67 Ah, this cabinet is sized for extended runtime on large three-phase loads. Compared to equivalently rated VRLA alternatives, Li-Ion at this capacity runs longer at high ambient temperatures without the same derating curve — a meaningful factor in non-climate-controlled plant environments.
- Integrated BMS, Switchgear, and Communication Interface: The BMS is factory-integrated — not a field-add. It monitors cell-level state of charge, temperature, and health, and communicates status upstream to the UPS. This eliminates the separate BMS wiring run that adds labor and failure points on modular battery installations.
- UL 9540A Listed: UL 9540A is the standard for evaluating fire propagation in energy storage systems — increasingly required by AHJs for large Li-Ion installations in occupied or high-value facilities. Having this listed before the AHJ conversation starts removes a common project delay on data center and industrial permitting.
- Operating Altitude to 3,000 m: Rated for operation from sea level to 3,000 m without derating. If your facility is at elevation — mountain-region data centers, high-altitude industrial plants — this spec is worth verifying against your site altitude before finalizing UPS selection.
- 0–40 °C Storage Temperature: Storage temperature range of 0–40 °C aligns with conditioned warehouse and loading dock environments, so standard freight and staging handling is sufficient without special thermal controls during project staging.
- Powder-Coated White Enclosure: The enclosed cabinet form factor with powder coat finish suits raised-floor data center aesthetics and protects internal components from incidental contact — not just a cosmetic choice, but a safety and longevity factor in open-access equipment rooms.
Integration & Compatibility
The LIBSESMG17IEC is designed for integration with APC by Schneider Electric Galaxy three-phase UPS systems that support external Li-Ion battery cabinets at the 516.8 V bus level. The on-board communication interface passes battery health and state-of-charge data to the parent UPS — verify compatibility against your specific Galaxy UPS model and firmware revision with the manufacturer's compatibility matrix before ordering. The IEC designation in the model number indicates IEC-standard cabling and connector interfaces; confirm your data center's power infrastructure matches before deployment.
For UPS battery systems at this scale, site prep involves confirming floor load ratings (490 kg operating weight), conduit routing for the communication cable, and coordinating the IEC connection point with your electrical contractor. Reviewing the APC by Schneider Electric catalog for compatible Galaxy UPS frames and parallel battery expansion options is the recommended starting point for sizing a multi-cabinet installation.
Facilities planning a large energy storage deployment should also review relevant power distribution infrastructure to ensure the upstream switchgear and PDU ratings align with the cabinet's output. If runtime extension beyond a single cabinet is required, APC's Galaxy platform supports multiple battery cabinet configurations — consult the Galaxy series UPS systems documentation for multi-cabinet expansion rules and maximum string counts.
Frequently Asked Questions
Q: What battery chemistry does the LIBSESMG17IEC use, and who manufactures the cells?
A: The LIBSESMG17IEC uses Lithium-Ion (Li-Ion) chemistry. The cells are manufactured by Samsung.
Q: What is the total energy capacity of this battery cabinet?
A: The cabinet contains 17 modules at 2.04 kWh each, for a total of 34.68 kWh. The rated capacity is 67 Ah at a 516.8 V bus voltage.
Q: Is the LIBSESMG17IEC UL 9540A listed?
A: Yes. The LIBSESMG17IEC complies with UL 9540A, the standard for the evaluation of fire propagation characteristics of battery energy storage systems — a requirement increasingly enforced by local AHJs on large Li-Ion installations.
Q: What are the physical dimensions and weight for site planning?
A: The cabinet stands 197 cm tall and weighs 490 kg in operating configuration. The shipping package dimensions are 2150 mm H × 800 mm W × 1200 mm L, with a packaged weight of 500 kg. Crane or heavy pallet jack access is required.
Q: What is the maximum operating altitude for the LIBSESMG17IEC?
A: The cabinet is rated for operation from 0 to 3,000 m altitude without derating — suitable for high-elevation facilities.
Q: What does the cabinet include beyond the batteries themselves?
A: The LIBSESMG17IEC integrates a Battery Management System (BMS), switchgear, an internal power supply, and a communication interface within the enclosed cabinet. An installation guide is provided in the box.
The LIBSESMG17IEC is one of the heavier infrastructure commitments in the Galaxy battery lineup — 490 kg of operating weight, 34.68 kWh total capacity, and a 516.8 V Li-Ion architecture that is designed to pair with large Galaxy three-phase UPS frames, not to serve as a standalone unit. If you're quoting a data center or industrial facility expansion and the UPS runtime numbers aren't closing with VRLA strings, this cabinet is the right conversation to have.
Technical Highlights:
- Samsung Li-Ion Cells: Samsung cell sourcing at 516.8 V provides consistent electrochemical behavior across all 17 modules, which matters for BMS accuracy over multi-year service — inconsistent cell grades are the primary cause of premature capacity fade in large battery plants.
- Integrated BMS + Communication Interface: Factory-integrated BMS and communication interface eliminate the separate field-wiring run that adds labor and a potential failure point. The BMS feeds state-of-charge and health data directly to the parent Galaxy UPS, so battery visibility in the UPS management software is available from commissioning day one.
- UL 9540A Compliance: This listing addresses the fire propagation question that AHJs are asking on every large Li-Ion installation. Having it documented before permit submission removes what is routinely the longest single-item delay on data center battery plant permitting.
Deployment Considerations:
- At 490 kg operating and 500 kg packaged, this cabinet requires verified floor load ratings at the installation point and either a crane or rated pallet jack for the final positioning — coordinate with the GC and confirm structural capacity before scheduling delivery.
- The IEC suffix in the model number designates IEC-standard cabling interfaces; if your site uses NEMA wiring conventions throughout, verify the connection point compatibility with the Galaxy UPS frame specification before the cabinet arrives on site.
This cabinet is the right fit for a data center row extension or critical industrial facility where a single, pre-integrated Li-Ion energy storage unit needs to deliver 34.68 kWh without the floor footprint and maintenance overhead of an equivalent VRLA string installation — particularly at sites where UL 9540A compliance is an AHJ condition of approval.
