The Vertiv NetSure 731 A61-S3 is a 19-inch 6U rack-mounted, telecom-grade -48VDC high-frequency switch-mode power system with a maximum rating of 300A.
Need to confirm a model, specification, or project configuration? Our team can follow up by email or phone.
This subrack power solution integrates high-efficiency rectifiers, integrated AC/DC distribution breakers, and a digital controller (NCU/M830B). It converts fluctuating AC mains into clean, regulated -48V DC power while providing battery health management and dual LVD protection for critical network loads.
Eliminates power conversion inefficiencies, solves footprint constraints in overcrowded telecom cabinets, and protects battery banks from catastrophic deep discharge during prolonged grid outages.
4G/5G macro cell sites, optical transport nodes, central office aggregation points, and enterprise edge data micro-modules.
| Key specifications | Value |
|---|---|
| AC Input Voltage | 85VAC ~ 300VAC (Nominal 220V/380VAC) VAC |
| Cooling System Architecture | Forced Air Cooling |
| Smart Monitoring Controller | M830B / NCU Controller |
| Nominal Output Voltage | -48VDC (-42V ~ -58V) VDC |
| Rated DC Output Current | 300A (System Capacity 14.4kW) |
| Managed Rectifier Capacity | 4 Slots for R48-2900U Modules |
| Form Factor Dimensions (HxWxD) | 266 (6U) × 482 × 380 mm |
| Peak Energy Efficiency | ≥96.0% |
| Operating Temperature Range | -40°C ~ +65°C |
Vertiv
Carrier-grade industrial high-frequency switch-mode power supply designed for high-efficiency AC/DC conversion, bus regulation, and intelligent battery management.
Standard 19-inch rack-mount embedded DC power system engineered for wide-range AC input, active rectifier redundancy, and tiered load/battery low-voltage disconnect.
The Vertiv ER22010-T is a 220Vdc/10A high-voltage DC switch-mode rectifier module engineered for utility substations, power plants, and HVDC distribution systems. Utilizing advanced resonant soft-switching technology, it delivers >94% peak efficiency, hot-swappable reliability, and comprehensive electrical protection.
The Vertiv ER22020-T is a 4.4kW high-power switch-mode rectifier module delivering 220Vdc/20A for utility substations and critical industrial DC systems. Powered by full DSP digital control and LLC resonant conversion, it provides industry-leading electrical stability across extreme temperatures.
