Vertiv NetSure 731 A41-S2 Official White Background Photo View 1
VertivModel: NetSure 731 A41-S2

Vertiv NetSure 731 A41-S2 Subrack Switch-Mode DC Power System (-48V 300A 4U)

The Vertiv NetSure 731 A41-S2 is a 6U 19-inch embedded telecom DC power subrack with a total capacity of up to 300A, housing high-efficiency R48-3000e3 rectifiers and an advanced NCU/M-series controller.

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Nominal Output Voltage
-48VDC (-42V ~ -58V) VDC
AC Input Voltage
85VAC ~ 300VAC (Nominal 220V/380VAC) VAC
Rated DC Output Current
300A (System Capacity 14.4kW)
Peak Energy Efficiency
≥96.2%
Managed Rectifier Capacity
4 Slots for R48-2900U / R48-3200e Modules
Smart Monitoring Controller
M830B / NCU Controller

What this product is

What this product is

An integrated telecom-grade power core comprising AC input distribution, DC load breakers, rectifier slots, an intelligent control unit, and battery disconnection contactors in a compact rackmount frame.

What problem it solves

Eliminates telecom outage risks under erratic AC grid conditions, mitigates single points of failure via N+1 rectifier redundancy, and prevents deep battery discharge through automated multi-stage load disconnection.

Who and where it is for

4G/5G wireless macro base stations, central office aggregation nodes, optical line terminals (OLT), enterprise telecom shelters, and industrial SCADA setups.

Core advantages

  • Ultra-wide AC input range (85VAC-300VAC) with grid self-adaptation ensures uninterrupted power under severe grid fluctuations.
  • Modular hot-swappable design and N+1 redundancy architecture enable smooth scalability and eliminate single points of failure.
  • High-efficiency rectifier modules (peak efficiency ≥96.2%) significantly reduce operational energy loss and data center PUE.
  • Integrated intelligent battery management supports multi-stage load shedding (LLVD/BLVD) and precise charge-discharge control to extend backup lifespan.

Technical specifications

Key specificationsValue
AC Input Voltage85VAC ~ 300VAC (Nominal 220V/380VAC) VAC
Smart Monitoring ControllerM830B / NCU Controller
Cooling System ArchitectureIntelligent front-to-rear air cooling
Nominal Output Voltage-48VDC (-42V ~ -58V) VDC
Managed Rectifier Capacity4 Slots for R48-2900U / R48-3200e Modules
Rated DC Output Current300A (System Capacity 14.4kW)
Form Factor Dimensions (HxWxD)177 (4U) × 482 × 380 mm
Peak Energy Efficiency≥96.2%
Operating Temperature Range-40°C ~ +65°C

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

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