Product Introduction
Model: TH48T75NZ-S, 3000W telecom AC-DC rectifier module
Topology: Full digital LLC soft-switching design
Function: Convert AC grid power into stable 48V DC output
Feature support: Hot swap, N+1 parallel redundancy, automatic current sharing, battery charging
Control: Intelligent monitoring via communication port
Form factor: 1U rack-mounted, compact structure
Operating capability: 24/7 continuous operation, adapt to harsh outdoor environment
Main target: Telecom power cabinet, 5G station, industrial DC power and energy storage system

Product Specifications
| Item |
Parameter |
| Model |
TH48T75NZ-S |
| Rated Power |
3000W |
| Input |
85~300VAC, Single Phase or DC 80V–420V |
| Rated Output |
48V DC, 75A |
| Output Voltage Range |
42V ~ 58V DC (adjustable) |
| Peak Efficiency |
≥96.5% |
| Cooling |
Intelligent fan cooling, speed adaptive |
| Communication |
RS485 / CAN, support monitoring unit |
| Parallel |
N+1 redundant parallel, automatic current sharing |
| Hot Swap |
Support hot plug & play |
| Dimension |
1U rack-mount |
| Protection |
Over-voltage, under-voltage, over-current, short circuit, over temperature, reverse connection |
| Working Temperature |
-40℃ ~ +75℃ |
| Standard |
Compliant with YD/T, CE, safety & EMC standards |
Product Advantages
1.High Efficiency & Energy Saving
Adopts LLC soft-switching technology, peak efficiency over 96.5%, lower power loss and heat generation, reduce long-term electricity cost.
2.High Power Density & Compact 1U Design
3000W power in 1U height, save cabinet space, easy for rack integration and capacity expansion.
3.Intelligent Digital Control
Full digital control, precise voltage/current adjustment, remote parameter setting, real-time status data upload.
4.Reliable Redundant Operation
Support N+1 parallel, automatic current sharing, hot swap; single module failure will not affect the whole power system.
5.Strong Environmental Adaptability
Wide AC input, wide working temperature range, anti-shock and anti-interference, stable running for outdoor and remote sites.
6.Complete Multi-protection
Built-in multi-layer protection mechanism, auto alarm and lockout when abnormal, protect load and battery.

Company Advantages
Tonhe Technology (300491) is a professional high-tech manufacturer focusing on power conversion and energy power supply solutions.
• Independent R&D, self-owned production line, strict IQC / IPQC / FQC testing process.
• Rich experience in telecom, data center and industrial power supply, stable supply for global customers.
• Customized support: parameter adjustment, firmware customization, system matching solution.
• Global after-sales support, technical documents, debug guidance and long spare parts supply.
• Products exported to Europe, Asia, Africa and Oceania, passed CE and related telecom certification.



Application Scenarios
• 5G / 4G Telecom Base Station
• Outdoor Telecom Power Cabinet
• Edge Computing & Small Data Center
• Industrial DC Power System
• Battery Charging & Energy Storage Backup System
• Railway, Oil & Gas Remote Monitoring Equipment
• Security, Communication Transmission Equipment

FAQ
Q1: Can TH48T75NZ-S work in parallel for N+1 redundancy?
A: Yes. It supports multi-module parallel, automatic current sharing and hot swap. N+1 redundant configuration is the most common design for telecom power systems.
Q2: Is the output voltage adjustable? Can it charge 48V battery?
A: Output voltage is adjustable between 43.2V–58V. It can be set to suitable float charge and boost charge voltage for lead-acid or lithium 48V battery.
Q3: What communication interface does this module have?
A: Equipped with RS485 interface, compatible with Tonhe monitoring unit. It can read voltage, current, temperature, fault code and set parameters remotely.
Q4: Can it run at low AC input like 90VAC?
A: Yes. The wide AC input range is 90~290VAC, suitable for unstable grid areas and remote sites.
Q5: What is the warranty period?
A: Standard warranty is 3 years. We provide long-term technical support and spare parts supply. Extended warranty plan is available upon request.