Vertiv Liebert PM50-B Modular Precision UPS Distribution Cabinet (50kVA Subrack) - Official Front View
VertivModel: Liebert PM50-B

Vertiv Liebert PM50-B Modular Precision UPS Distribution Cabinet (50kVA Subrack)

The Vertiv Liebert PM50-B is a 50kVA modular precision UPS distribution power cabinet engineered for small-to-medium data centers and mission-critical industrial facilities, featuring online double conversion.

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Rated Distribution Capacity
50kVA / 45kW (Scalable Architecture)
AC Input Voltage Specification
380V / 400V / 415V AC (3-Phase 4-Wire)
Nominal DC Output Voltage
380V/400V/415V AC ±1% Pure Sine
Power Topology Architecture
Online Double-Conversion Modular
Online Operating Efficiency
>96% (Up to 99% in ECO Mode)
Maintenance Bypass Switch
Built-in Static Bypass & Manual Maintenance

What this product is

What this product is

The Vertiv Liebert PM50-B is a 50kVA modular precision UPS distribution power cabinet engineered for small-to-medium data centers and mission-critical industrial facilities, featuring online double conversion.

What problem it solves

Resolves power grid instability, excessive OPEX energy dissipation, battery degradation, and rack footprint constraints.

Who and where it is for

5G cellular cell sites, core telecom DC plants, AI data centers, transport networks, and critical industrial DC UPS.

Core advantages

  • Modular Hot-Swap Agility: Power units and bypass swap online, slashing MTTR to under 5 minutes.
  • Pristine Output Waveform: Low THDu <1.5% delivers clean sine wave protection for sensitive servers.
  • Intelligent Battery Telemetry: Automatic battery self-testing and real-time open-circuit fault alerts.
  • Color Touchscreen HMI: Comprehensive mimic diagram displays real-time power flows and alarm logs.

Technical specifications

Key specificationsValue
Rated Distribution Capacity50kVA / 45kW (Scalable Architecture)
AC Input Voltage Specification380V / 400V / 415V AC (3-Phase 4-Wire)
Power Topology ArchitectureOnline Double-Conversion Modular
Online Operating Efficiency>96% (Up to 99% in ECO Mode)
Maintenance Bypass SwitchBuilt-in Static Bypass & Manual Maintenance
Nominal DC Output Voltage380V/400V/415V AC ±1% Pure Sine

Applications

01

4G/5G Telecom Cell Sites & Distributed Power Systems

02

Carrier Core Network Facilities & IDC DC Plants

03

Industrial Automation & Utility Substation DC UPS

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