Vertiv Liebert APM Plus

Vertiv™ Liebert® APM Plus is a scalable, high-density, transformer-free modular UPS for medium to large business-critical applications. It delivers double conversion efficiency up to 97% with a competitive operating cost and an ultra-compact footprint for row or room installation.

Hot-swappable power and bypass modules, intelligent paralleling and a flat efficiency curve help future-proof mission-critical systems such as data centres and telecom IDC against disruptive power outages. Available from 50 to 500 kW.

Key Features

• Up to 97% double conversion · up to 98.8% Dynamic Online · up to 99% ECO mode
• Flat efficiency curve and high power density
• Modular and scalable - up to 500 kW in one unit
• Hot-swappable power modules and bypass module
• Distributed module control system
• Unity output power factor (kVA = kW)
• Intelligent paralleling · parallel capacity up to ~2 MW
• 9-inch LCD touchscreen display
• Self-capacity test without load banks
• Operates up to 50°C with auto-derating
• Robust air channels · conformal-coated PCBs

Applications

• Data centre / colocation / hosting
• Telecom IDC
• Banking, financial and insurance
• Government, education and professional services
• Retail and wholesale

Technical Overview

Type	Modular transformer-free 3-phase UPS
Capacity range	50–500 kVA / kW
Module steps	50 kW increments
Input / output voltage	380 / 400 / 415 V 3Ph+N
Input voltage range	228–478 V (without battery discharge)
Power factor	Unity

Type Overview - Frame Models

Featured configurations on this site: the three main cabinet frames. Capacity is built from hot-swappable modules within each frame.

Frame	Capacity Range	W × D × H (mm)	Weight (kg)
APM Plus 50-250 kW	50–250 kVA / kW	600 × 850 × 2000	447
APM Plus 50-500 kW (no switch)	50–500 kVA / kW	600 × 1000 × 2000	600
APM Plus 50-500 kW (full switch)	50–500 kVA / kW	1200 × 1000 × 2000	824