48V DC-DC Converter for Telecoms Rack Mountable

48V DC-DC Converter for Telecoms Rack Mountable

Brand: Tonhe
Model: TH48T75NZ-S
Product Overview
TH48T75NZ-S is a high-reliability rack-mountable DC-DC converter designed specially for telecom power systems. Adopted digital control and LLC soft-switching topology, this 1U module features high power density, high efficiency, hot-swap support and intelligent communication function. It is widely deployed in telecom racks, base stations, edge computing cabinets and DC power distribution systems, stable 24/7 continuous operation for critical communication infrastructure.

Key Specifications

Product Advantages
• High Efficiency & Low Loss
LLC soft-switching design, peak efficiency ≥96.5%, greatly reduces heat generation, cuts OPEX for telecom sites. Excellent partial-load efficiency keeps energy-saving performance even under light load.
• 1U Compact Rack Design
Standard 19-inch 1U rack mount, small footprint, high power density, easy to integrate into telecom power cabinets and battery backup racks. Hot-swap design allows single module replacement without powering down the whole system.
• Digital Intelligent Control
Full digital control, real-time monitoring of voltage, current, temperature and running status via RS485. Remote parameter configuration, alarm upload and status query are available for unmanned telecom stations.
• Strong Redundancy & Current Sharing
Supports multi-module N+1 parallel operation with precise active current sharing. If one module fails, remaining modules automatically take over the load to guarantee uninterrupted power supply for telecom loads.
• Rugged & Telecom-Grade Reliability
Wide temperature range -40~70℃, full protection suite, anti-surge and anti-vibration design, adapted to outdoor base stations, remote sites with harsh temperature and unstable environment.

Application Scenarios
Telecom core racks, mobile communication base stations (4G/5G)
Edge data center DC power distribution
Optical transmission equipment, microwave communication station
Battery backup system, hybrid solar telecom power system
Railway communication, industrial communication cabinet power supply
ISP operator room, private network communication power supply
Service Advantages
1.Complete Export Document Support
We provide commercial invoice, packing list, CO, Form E, Form A, test report, CE/RoHS certificate for customs clearance in different countries.
2.Customized Technical Support
Support communication protocol adaptation, output parameter fine-tuning, system scheme design for your telecom rack.
3.Long Warranty & After-sale
5 year warranty, lifetime technical consultation. Fast response for failure diagnosis and spare parts supply for overseas projects.
4.Flexible MOQ & Shipment
Support sample testing, bulk order, mixed container shipment. Cooperate with reliable freight forwarders for sea, air and railway delivery.
5.Local Project Technical Follow-up
We supply operation manual, debugging guide, and offer online remote commissioning training for your engineering team.

Export Reference Cases
1.Turkey Telecom Operator Cabinet Project
Delivered 1200 pcs TH48T75NZ-S for 5G edge station power racks. N+1 redundant parallel system, stable operation in hot summer outdoor sites, passed local telecom authority field test.
2.Armenia ISP Indoor Communication Room
Batch supply for 19-inch integrated DC power racks, matched with lithium battery backup system, RS485 remote monitoring connected to customer’s SCADA platform.
3.Kenya Solar-Telecom Hybrid Base Station
Work together with off-grid solar battery system. Wide input voltage tolerance adapts to solar fluctuation, reduces site outage rate in remote rural communication stations.
4.Belarus Railway Communication Cabinet Project
Deployed in railway signal communication racks, wide low-temperature working range, anti-vibration design meets railway power standard.
5.Malaysia Data Center DC Distribution Unit
Used as secondary DC-DC converter inside server racks, high efficiency helps customers reduce PUE of edge data center.

FAQ
Q1: Does TH48T75NZ-S support hot swap replacement when running?
A: Yes. This module supports hot-swap function. You can replace the faulty module directly without shutting down the whole telecom power rack, minimizing downtime risk for communication services.
Q2: Can multiple TH48T75NZ-S modules run in parallel for redundant power supply?
A: Yes. It supports N+1 redundant parallel with built-in active current sharing circuit. The current unbalance ≤±5%, suitable for telecom high-reliability power backup.
Q3: What communication protocol does this DC-DC converter use? Can I connect it to my monitoring system?
A: Standard RS485 interface with MODBUS-RTU protocol. You can read voltage, current, temperature and alarm signals, or set parameters remotely with your SCADA / power monitoring platform.
Q4: Can this module work at high ambient temperature for outdoor telecom cabinets?
A: The rated working range is -40℃ ~ +70℃. Above 55℃, the module will automatically derate output power to protect itself. We suggest heat dissipation design for sealed outdoor cabinets.
Q5: What export certificates and documents can you provide for customs clearance?
A: We can supply CE, RoHS, TLC telecom certificate, factory test report, CO, Form E / Form A, packing list and commercial invoice according to your destination country’s requirement.