The row-based Liebert APM is a transformer-free, on-line uninterruptible power supply (UPS) that allows quick and easy capacity increases with modular scalability--with no additional floorspace required. Liebert APM operates with the industry's highest data center power efficiency--up to 94% at loads of 50-100%.

The 208 Volt, three-phase Liebert APM is available in two models, expandable with modular power scalability:

• Liebert APM 45kW frame size is expandable from 15 to 45kW, with up to 45kW of capacity, or up to 30kW of capacity with a 15kW module for redundancy. This frame size includes internal batteries, and is compatible with the matching external battery cabinet and the optional Liebert APM bypass distribution cabinet (BDC).
• Liebert APM 90kW frame size is expandable from 15 to 90kW, with up to 90kW of capacity, or up to 75kW of capacity with a 15kW module for redundancy. This frame size requires the matching external battery cabinet, and is compatible with the optional Liebert APM BDC bypass distribution cabinet.

Flexibility

• Capacity expansion in 15kW increments using modular power assemblies.
• Internal bypass allows modular power assemblies to be added or replaced without powering down the connected equipment.
• Offers a large and user-friendly LCD display with operating information in twelve languages.
• Conveniently positioned, easy-to-reach lug holes simplify unit wiring and installation.

Higher Availability

• True on-line, double conversion technology corrects for all types of power fluctuations.
• Redundancy features minimize single points of failure.
• Enterprise-quality batteries in an external battery cabinet provides backup time for 90kW unit, and additional runtime for 45kW unit.
• Optional bypass distribution cabinet (BDC) provides wraparound maintenance bypass, so the attached load can keep running during UPS service.

Lowest Total Cost Of Ownership

• Buy only what you need for present usage, with the flexibility to add capacity as demand increases.
• High operating efficiency (up to 94%), with a virtually flat efficiency curve from 50-100% load; efficiency is not load-dependent, which translates into significant energy cost savings.
• Fewer batteries mean less maintenance and higher reliability.
• Operates with unity power factor, where kW = kVA, providing more real power capacity without power losses.

Ideally Suited For

• Small to mid-size data centers
• Server rooms
• Production
• Labs and testing facilities
• Telecommunications
• Process control centers