Vertiv NetSure 731 A41-S7 48V High Efficiency Embedded Telecom DC Power System

Specifications

Product Overview

The Vertiv NetSure 731 A41‑S7 (Former Emerson brand) is high-efficiency single-output embedded DC power system with standard 4U 19-inch rack dimension, specially designed for small FTTx OLT cabinets, indoor access network equipment and compact unmanned communication sites. With ultra-wide 80~300VAC single-phase AC input, it converts alternating current into adjustable -42~-58VDC stable DC power, nominal 53.5VDC. This system supports flexible rectifier configuration, equipped intelligent monitoring unit and complete multi-level load shedding circuit, built-in full-range lightning protection on AC, DC and signal terminals. Featuring ECO energy-saving mode and intelligent fan speed regulation, it achieves up to 96% conversion efficiency, widely used for small-capacity communication equipment backup power globally.

Key Features

Standard 4U 19-inch rack size:483×390×178mm, front full maintenance & dual-side wiring design for easy installation

Ultra-wide AC input range:80~300VAC,50/60Hz, excellent adaptability for unstable municipal grid and diesel generator power

Adjustable DC output:‑42~‑58VDC(default53.5VDC), single output structure, PF≥0.99 with low harmonic distortion

High-efficiency rectifier matching, peak conversion efficiency up to 96%, ECO sleep mode to reduce idle power consumption

Hot-swappable rectifier module design, replacement without shutting down whole power system, minimize site maintenance downtime

Built-in multi-stage BLVD/LLVD load shedding protection, effectively extend service life of lead-acid/lithium battery packs

Full lightning surge protection for AC input, DC output and signal ports, compliant telecom anti-surge standard

Intelligent temperature-controlled variable speed fan, reduce running noise and prolong fan service life

Rich communication ports: RS232+Dry contact alarm, realize remote data monitoring & fault alert; CE certified

Wide operating temperature range:‑40℃ ~ +70℃, stable running under high/low temperature harsh cabinet environment

Technical Specifications

Applications

FTTx OLT Small Indoor Cabinet DC Backup Power Supply

Mini 4G/5G Indoor Micro Base Station Power System

DSLAM & Access Network Communication Equipment Power

Security Monitoring & Small Industrial Control DC Power

Old Mini Communication Cabinet Power Renovation Upgrade

Remote Unmanned Outdoor Small Pole-mounted Cabinet Power

Why Choose Us

We are a professional manufacturer and one‑stop solution provider for communication DC power systems, boasting mature R&D strength, large‑scale production capacity and flexible service modes. We fully support OEM and OBM cooperation, helping global partners create differentiated power products.

Powerful R&D & Customization Ability

We have a professional technical team with years of experience in the power industry. We can provide personalized customized services covering power configuration, external interfaces, functional parameters, appearance design and logo printing, to satisfy diverse demands from telecom operators, system integrators and equipment manufacturers.

Comprehensive OEM & OBM Services

We offer full‑cycle cooperation support from product design, prototype testing, certification to mass production. With efficient development process and strict quality management, we help you quickly launch products and build exclusive brand advantages.

Large Production Capacity & On-time Delivery

We own standardized production workshops and complete production lines. Relying on a stable supply chain and mature production technology, we maintain sufficient inventory and strong production capacity, ensuring on-time delivery even for bulk orders and long-term cooperative supply.

Strict Multi-level Quality Inspection

All products will pass full-load operation test, high-low temperature aging test, safety performance test and simulated on-site operation test before delivery. We adopt high-quality original components and implement strict quality control standards to guarantee long-term stable operation of products in various harsh environments.

Full Lifecycle Technical & After-sales Support

We establish a complete service system including pre-sales consultation, in-sales technical guidance and after-sales maintenance. Our technical team responds quickly to provide remote debugging, on-site technical guidance and spare parts supply, protecting the stable operation of your power system all the time.

Rich Global Project Experience

Our products have been exported to many countries and regions, widely applied in communication, data center, industrial control, new energy and other fields. With rich project experience, we can provide targeted power solutions for different regional standards and application scenarios.

We sincerely look forward to establishing long‑term stable cooperative partnership with you.