APC Smart-UPS On-Line 6kVA/6kW Tower UPS, 208V – Extended Runtime, Network Card + SmartSlot

Designed for IT professionals, data centers, and network administrators, the APC Smart-UPS On-Line 6kVA/6kW Tower UPS is built to protect business uptime and data integrity. Featuring online double-conversion technology, it continuously conditions and delivers clean, uninterrupted power to servers, storage, switches, routers, and other critical equipment, even during utility outages or voltage sags. The tower form factor fits neatly in tight data closets and edge deployments, and its extended runtime capability helps you bridge outages while IT teams respond. With a 208V input and flexible NEMA outlet configuration, this UPS provides robust protection for mid-size networks, telecommunications gear, and high-availability workloads. Note that this model ships without a rail kit, but it includes a Network Card + SmartSlot for remote management and scalable expansion as your infrastructure grows.

• Uninterruptible power supply with online, double-conversion topology delivers a pure sine wave output to sensitive IT equipment. This design continuously regenerates and conditions the electrical supply, isolating connected devices from utility fluctuations, noise, and outages. It minimizes transfer times, supports servers, virtualization hosts, storage arrays, switches, and other critical devices, and helps maintain application performance and data integrity even during brownouts or blackouts.
• 208V input with hard-wire 3-wire (2P+E) configuration offers compatibility with common data center mains and generator-start systems. The unit is optimized for North American 208V distributions, reducing voltage drop and allowing reliable operation in diverse environments. The 3-wire input also contributes to safe grounding and protection against electrical faults, enhancing the overall reliability of your IT infrastructure.
• Flexible outlet configuration includes 2x L6-20R and 3x L6-30R NEMA outlets to support a wide range of devices — from servers and storage to switches and networking gear. The outlet grouping is designed to simplify cable management, enable clean separation of critical loads, and accommodate high-demand IT equipment without crowding a single circuit. This arrangement makes it easy to balance loads across devices and maintain proper cooling in the rack or room.
• Extended runtime for critical devices ensures essential systems stay online during outages, giving you time to respond and maintain business continuity. With extended runtime capabilities, you can plan for longer outages or bridge gaps while initiating orderly shutdowns. The system supports battery backup and ensures graceful transfer to backup power, protecting against data loss and service disruption. Battery health and monitoring features help you maintain reliability over the life of the unit.
• Network management and expansion is provided by the built-in Network Card with SmartSlot, enabling remote monitoring and integration with your IT management stack. SmartSlot allows you to add monitoring modules and firmware updates as needed, giving you visibility into load, battery status, temperature, and runtime. The unit is shipped without a rail kit but is designed for flexible deployment as a standalone tower or with additional accessories for rack mounting if desired.

Technical Details of APC Smart-UPS On-Line 6kVA/6kW Tower UPS

• Power rating: 6 kVA / 6 kW
• Input: 208 V AC, 3-wire (2P+E)
• Output: 208 V AC to connected equipment
• Outlet configuration: 2x L6-20R + 3x L6-30R NEMA outlets
• Topology: Online, double-conversion with pure sine wave output
• Management: Network Card + SmartSlot
• Form factor: Tower
• Runtime: Extended runtime capable
• Rail kit: Ships without rail kit (W/O rail kit)
• Mounting flexibility: Suitable for standalone tower deployment with optional accessory upgrades for rack mounting

How to install APC Smart-UPS On-Line

• Prepare the installation area: Choose a stable, well-ventilated location away from excessive heat, dust, and direct sunlight. Ensure adequate clearance for airflow and access to the outlets and management interfaces.
• Unbox and inspect: Verify all components are present and undamaged. Retain the user manual for reference during setup and future maintenance.
• Position the unit: Place the UPS in a dedicated space as a tower installation. If you plan a future rack-mount configuration, allow space for any adapters or foot connections.
• Connect input power: Use the hard-wire 3-wire (2P+E) input to connect the UPS to the building mains at 208V. Confirm the supply is within the specified range and that grounding is properly established.
• Attach loads to outlets: Plug critical devices (servers, storage, switches, routers) into the 2x L6-20R and 3x L6-30R outlets. Distribute the load to avoid overtaxing a single outlet group and maintain proper cooling around the equipment.
• Configure management features: If you are using the Network Card + SmartSlot, install the module in the SmartSlot and connect the UPS to your management network. Configure SNMP, email alerts, and any compatible integration with your monitoring platform according to your IT policy.
• Power on and validate: Turn on the UPS and run a self-test to verify battery health, output waveform, and communication with management tools. Confirm that connected equipment receives clean power during simulated or actual outages.
• Plan for maintenance: Establish a routine for battery health checks, firmware updates, and periodic testing to ensure continued reliability and performance over time.

Frequently asked questions

• What does 6kVA/6kW mean for this APC UPS? It indicates the unit can deliver up to 6,000 watts of real power to connected equipment, with a maximum apparent power of 6 kVA. The UPS is designed to support high-availability IT workloads requiring reliable, clean power.
• What outlets does it provide? The UPS features 2x L6-20R and 3x L6-30R NEMA outlets, offering flexible connections for servers, storage, networking gear, and other critical devices.
• Can I manage the UPS remotely? Yes. It includes Network Card + SmartSlot, enabling remote monitoring, alerts, and integration with existing IT management stacks via standard protocols.
• Is this unit a tower or rack-mountable? It is designed as a tower UPS. The model ships without a rail kit, intended for standalone tower deployment, with optional accessories available for rack mounting if needed.
• What about runtime? The description notes Extended runtime, meaning you can configure longer backup times for essential devices during outages, typically by adding battery options supported by APC's Smart-UPS family and the appropriate runtime configurations.
• What input voltage does it require? The unit uses 208 V AC input, 3-wire (2P+E), suitable for North American 208V distribution systems.
• How do I install the Network Card + SmartSlot? Install the SmartSlot module in the dedicated slot, then connect and configure the Network Card according to your network setup and APC’s management guidelines to enable remote monitoring and alerts.