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Vertiv NetSure 731A91-S1 Floor-Standing Telecom DC Power System (-48V 600A/900A R48-3200e M830B) - Official Front View
VertivModel: NetSure 731A91-S1

Vertiv NetSure 731A91-S1 Floor-Standing Telecom DC Power System (-48V 600A/900A R48-3200e M830B)

The NetSure 731A91-S1 is a high-capacity, highly reliable floor-standing telecom DC power system engineered by Vertiv for core switching offices, data centers, and large-scale macro base stations.

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Rated System Output Capacity
600A / 900A
Standard Rectifier Model
R48-3200e High-Efficiency Rectifier
Central Supervisory Monitoring Unit
M830B Intelligent Controller
AC Input Phase Voltage Range
85V-300V AC (Nominal 220V/380V)
DC Output Voltage
-48VDC (-42V ~ -58V)
Form Factor & Mounting
19-Inch Rackmount

What this product is

What this product is

Built into a robust floor-standing cabinet structure, the system integrates high-performance R48-3200e high-efficiency rectifier modules and an intelligent M830B monitoring unit to deliver reliable -48V DC power output.

What problem it solves

Effectively resolves power shortages caused by growing network loads, low energy efficiency in legacy power equipment, and lack of intelligent remote management in large telecom facilities.

Who and where it is for

Widely deployed in telecommunication operator core switching offices, large data center switch rooms, transmission hubs, and industrial dedicated communication networks requiring high-power DC feeds.

Core advantages

  • Massive System Capacity: Supports 600A to 900A high-density power output, perfectly matching heavy capacity expansion requirements in large facilities.
  • Superior Energy Efficiency: Equipped with R48-3200e high-efficiency rectifiers boasting >96% conversion efficiency, greatly reducing OPEX.
  • Intelligent Centralized Control: Powered by the advanced M830B controller for comprehensive real-time data collection, alarm handling, and remote management.
  • High Reliability & Redundancy: Supports N+1/N+2 redundant configuration and hot-swappable design, eliminating single points of failure.

Technical specifications

Key specificationsValue
Rated System Output Capacity600A / 900A
Standard Rectifier ModelR48-3200e High-Efficiency Rectifier
DC Output Voltage-48VDC (-42V ~ -58V)
AC Input Phase Voltage Range85V-300V AC (Nominal 220V/380V)
Overall System EfficiencyUp to 96.2% (Gold Standard)
Acoustic Noise≤ 55 dBA (at 25°C ambient load)
Ingress Protection RatingIP20 (Indoor Dust & Finger Proof)
Dielectric Withstand Voltage3000VAC Input to Ground (< 5mA)
Form Factor & Mounting19-Inch Rackmount
Central Supervisory Monitoring UnitM830B Intelligent Controller

Applications

01

Telecom 4G/5G macro cellular base stations and distributed remote power sites

02

Enterprise-grade cloud data center mission-critical -48V DC power distribution lineups

03

Utility power grid dispatch centers and high-voltage substation DC switchgear rooms

04

Railway transit signaling, automated train control, and communications equipment rooms

Frequently asked questions

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