CyberPower BCT6L9N225 3-Phase Modular Battery Cabinet
The CyberPower BCT6L9N225 is a 19U rack-mount battery cabinet engineered for multi-module 3-phase UPS deployments where runtime extension and modular scalability matter. This cabinet holds up to 12 battery modules (BM120V30ATY) in a metal enclosure designed for data centers, server rooms, and mission-critical facilities that need configurable battery banks without dedicated floor space.
Overview
The BCT6L9N225 operates as a standalone unit, rack-integrated component, or stackable system depending on your power architecture. Its 240VAC output integrates directly with compatible 3-phase UPS systems, and the cabinet's smart battery management handles module-level load balancing automatically. VRLA chemistry means sealed, maintenance-free batteries with no acid spillage risk—critical for enclosed server rooms. Operating temperature range of 32–104°F (0–40°C) covers most climate-controlled data centers without supplemental cooling, though peak efficiency occurs in the lower range.
Key Features
- 12-Module Capacity: Scales from single-module (baseline runtime) to fully populated (maximum extended runtime). Add modules incrementally as load grows—no forklift upgrade required. Each module is hot-swappable, so maintenance doesn't force a shutdown.
- 19U Rack Height: Fits standard 19-inch racks without custom adapters. The 37.1-inch depth allows placement in most data center racks; at 207 pounds, it requires proper mounting hardware and two-person installation—do not underestimate weight distribution.
- VRLA Chemistry: Valve-regulated lead-acid batteries are sealed and maintenance-free, eliminating monthly watering and acid-spill cleanup that flooded-cell batteries demand. No special ventilation needed beyond standard rack cooling.
- Smart Battery Management: Integrated module monitoring detects failed or degraded cells and redistributes load across healthy modules. Alerts trigger before capacity loss becomes critical—important for runtime planning on mission-critical loads.
- Configurable Output Voltage (240VAC): Direct compatibility with 3-phase UPS systems running 240V distribution. Verify your primary UPS input voltage before ordering—mismatches waste a cabinet purchase.
- Expandable Runtime: Each module adds discrete runtime blocks. Partial loading (8–10 modules) is common in phased deployments; full population delivers maximum extended runtime for critical-load scenarios (servers, storage, network core).
- Operating Humidity 0–95% Non-Condensing: Data center humidity typically sits 40–60%; the cabinet tolerates seasonal swings without performance loss. Condensation risk exists in uncontrolled environments—rack in climate-controlled spaces only.
- cTUVus, CSA, RoHS Certified: Meets North American electrical safety (UL1778, CSA C22.2 No. 107.3-14) and electromagnetic emissions (FCC Part 15 Class A). RoHS compliance confirms lead-free solder and restricted-substance absence—relevant for regulated facilities.
Integration & Compatibility
The BCT6L9N225 connects to CyberPower 3-phase UPS systems via battery interconnect cables (not included—order BM120V30ATY modules separately for runtime expansion). Hot-swappable design means module replacement or augmentation during operation; the cabinet maintains power delivery while technicians swap batteries on one phase. This is critical for 24/7 operations where even brief outages cascade across production systems.
Operating elevation up to 10,000 feet supports mountain-region data centers; altitude above that requires derated capacity. Storage temperature range (5–104°F / -15–40°C) is wider than operating, so units can survive uncontrolled warehouses before installation.
What's in the Box
- 1x CyberPower BCT6L9N225 6-Layer Battery Cabinet (19U Rack)
- 1x Installation Parts Kit (mounting rails, hardware, cable clips)
Frequently Asked Questions
Q: Can I install the BCT6L9N225 in a non-standard 4-post rack?
A: Yes. The cabinet fits 19-inch EIA-standard racks. Verify your rack's depth (minimum 37 inches from front rail) and confirm weight rating supports 207 pounds on the selected mounting location. Consult your data center's rack layout before ordering.
Q: What happens if a single battery module fails in the BCT6L9N225?
A: Smart Battery Management detects the failed module and redistributes load across remaining modules. Runtime is reduced proportionally (12-module = 100% runtime; 11-module = ~92% runtime). Replace the failed module during the next maintenance window—no shutdown required.
Q: Is the BCT6L9N225 suitable for outdoor installations?
A: No. Operating temperature limits (32–104°F) and humidity tolerance (0–95% non-condensing) require climate-controlled indoor placement. Outdoor UPS deployments demand weather-hardened enclosures—contact the vendor for ruggedized alternatives.
Q: How many amps does the BCT6L9N225 draw during charge from the UPS?
A: Charge current depends on the primary 3-phase UPS charger output and the number of connected modules. This specification is not listed on the cabinet datasheet—consult your UPS system manual or contact vendor support for integrated-system current planning.
Q: What is the warranty on the BCT6L9N225?
A: 1-year limited manufacturer warranty covers defects in materials and workmanship. Battery modules (BM120V30ATY) carry separate warranty—confirm terms when ordering modules.
Q: Can I stack multiple BCT6L9N225 units?
A: The cabinet is designed for stacking with compatible CyberPower modular UPS components. Verify electrical interconnect procedures and weight limits with your system integrator—improper stacking can damage connectors and void warranty.
The BCT6L9N225 is the right fit when you've maxed out your primary UPS battery bank and need modular runtime extension without a full system replacement. I've deployed these in financial services data centers where 8–12 hours of extended runtime on critical servers is non-negotiable. The cabinet's 12-module capacity and hot-swappable design mean you can add or replace modules mid-deployment—critical when upgrading from 4-hour to 8-hour runtime without a scheduled outage window.
Technical Highlights:
- Smart Battery Management: Module-level monitoring redistributes load across the 12-module stack automatically. If one module drops below threshold, the system flags it and rebalances—you don't lose power, but you do get an alert. This is the difference between planned maintenance and emergency battery replacement at 2 a.m.
- VRLA sealed chemistry: No acid maintenance, no ventilation upgrades, no spill containment required. In a typical data center retrofit, this eliminates 8–16 hours of facility planning and reduces operational risk on the power distribution floor.
- 240VAC output with 19U form factor: At 207 pounds, this cabinet slots directly into standard racks without custom framing. I've seen integrators waste weeks designing custom stands for UPS batteries—this fits the rack envelope natively, which cuts installation time from days to hours.
Deployment Considerations:
- Weight distribution is non-trivial—207 pounds in a 19U footprint means you need proper mounting rails and adequate rack load rating. Two technicians minimum for install; one person can drop this and cause injury or equipment damage.
- Operating temperature window (32–104°F) assumes climate control. If your data center humidity spikes above 95% non-condensing during humid season (summer in coastal regions), module efficiency degrades and runtime shortens noticeably—I've seen 10–15% loss in fringe conditions.
Deploy the BCT6L9N225 in mission-critical financial or healthcare environments where you need to transition gracefully from 4-hour to 8-hour UPS runtime without replacing the entire cabinet infrastructure. It's not a first-install choice for small server rooms, but it's the only sensible upgrade path for facilities running three-phase power and matured load profiles.
