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19-Inch Embedded Design 96.3% Peak Rectifier Efficiency 650A Max Output Current Embedded DC Power System Telecom Power System
19-Inch Embedded Design DC Power System
,96.3% Peak Rectifier Efficiency Telecom Power System
,650A Max Output Current DC Power System
The Vertiv (formerly E mers on) NetSure 731 A91 is a highly integrated, high-efficiency 19-inch embedded DC power system designed for mission-critical telecom access networks, 4G/5G base stations, OLT equipment, edge data centers, and industrial power scenarios. It adopts a standard rack-mount subrack structure, supports up to 9 high-efficiency rectifier modules, and provides stable -48V DC output with a system capacity up to 650A / 31.5kW.
Equipped with intelligent monitoring, complete protection, and flexible power distribution, this system ensures reliable, energy-saving, and maintenance-free operation. It features front access, hot-swap capability, wide voltage input, and strong environmental adaptability, making it the preferred embedded power solution for modern communication infrastructure.
- Standard 19-inch embedded design, easy for rack installation and space saving
- Wide AC input range 85–305VAC, 45–65Hz, compatible with global power grids and generator power
- Supports up to 9 R48-3000e3 / R48-3500e3 rectifier modules, system power 3kW–31.5kW
- Peak rectifier efficiency up to 96.3%, high energy saving and low operating cost
- Stable adjustable -48V DC output (-43.2V ~ -57.6V), max output current 650A
- Hot-swappable rectifier modules, online replacement without system shutdown
- Integrated intelligent monitoring (M830B / M530B), supports LCD display, Ethernet, RS232, RS485, USB, SNMP
- Complete built-in protection: LVBD, OVP, OCP, SCP, OTP, surge protection
- Full front maintenance design, convenient installation, operation, and replacement
- Wide operating temperature range, suitable for outdoor cabinets and harsh environments
- Standard circuit breakers for load and battery, safe and reliable distribution
- Certified with CE, UL, ETSI, and global telecom standards
| Brand | Vertiv / E mers on |
|---|---|
| Model | NetSure 731 A91 |
| System Type | 19-inch embedded subrack |
| AC Input | 85–305VAC, 45–65Hz; 3-phase 4-wire / 5-wire |
| DC Output | Nominal -48VDC; Adjustable -43.2V ~ -57.6VDC |
| Max System Current | 650A |
| System Power | 3kW ~ 31.5kW |
| Matching Rectifier | R48-3000e3 / R48-3500e3 |
| Rectifier Efficiency | Up to 96.3% |
| Monitoring Unit | M830B / M530B |
| Communication | Ethernet, RS232, RS485, USB, SNMP |
| Protection | LVBD, OVP, OCP, SCP, OTP, Surge |
| Dimensions (W×D×H) | 483 × 400 × 352 mm |
| Weight | Approx. 24.8kg (without modules); 43kg (with modules) |
| Warranty | 12 Months |
| Certifications | CE, UL, ETSI, RoHS |
- 4G / 5G mobile base stations and wireless access sites
- Telecom OLT and fiber optical access network equipment
- Edge data centers and IDC equipment rooms
- Microwave transmission and fixed communication systems
- Industrial control, automation, and critical DC power loads
- Outdoor communication cabinets and compact power systems
- Street cabinet, basement, and narrow-space installation scenarios
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 and brands.
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.
We offer full-cycle cooperation support from product design, prototype testing, and certification to mass production. With an efficient development process and strict quality management, we help you quickly launch products and build exclusive brand advantages.
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.
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.
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, equipment maintenance training, and spare parts supply, protecting the stable operation of your power system at all times.
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 global project experience, we can provide targeted power solutions for different regional standards and application scenarios.
We sincerely look forward to establishing a long-term stable cooperative partnership with you.
