TH24D75NZ-S Telecom Rectifier System AC DC Rectifier Module

Product Introduction
- Product Positioning: The TH24D75NZ-S is a professional high-frequency AC-DC rectifier module tailored for telecom power systems, serving as the core power conversion unit for 24V DC telecom power supply solutions.
- Core Performance Parameters: It features a rated output power of 1800W, a rated output current of 75A and a standard 24V DC output, perfectly matching the power demand of mainstream communication equipment and industrial terminal devices.
- Core Working Principle: Adopting advanced high-frequency switching power supply and resonant rectification technology, it efficiently converts 185~265V AC mains power into stable, low-ripple DC power, ensuring high-efficiency and low-loss power conversion.
- Structural & Operational Advantages: Designed with lightweight modular integration, it supports hot-swappable replacement and multi-module parallel redundant operation, featuring strong system scalability and simple daily maintenance.
- Stability & Adaptability: Equipped with full-range intelligent protection and precise voltage regulation programs, it adapts to harsh working conditions such as grid fluctuations and extreme temperatures, enabling 7×24-hour stable uninterrupted power supply.
- Application Value: It is widely applicable for new power system construction, old equipment renovation and capacity expansion of communication base stations and computer rooms, being a reliable core power component for telecom and industrial scenarios.

Core Product Advantages
- 96% high full-load efficiency, energy-saving and low heat
- Precise voltage stabilization, ultra-low output ripple
- Full-range multi-protection, safe and stable operation
- Hot-swap & parallel design, easy expansion and maintenance
- Wide temperature adaptability for harsh industrial scenarios
High efficiency, precise voltage stabilization, full safety protection, hot-swap expandable design and wide-temperature industrial adaptability for stable 24V telecom power supply.
Detailed Product Parameters

Main Application Scenarios
1. Communication Base Station
Supplies stable 24V DC power for 2G/3G/4G/5G base stations, repeaters and outdoor telecom equipment packs.
2. Communication Computer Room
Provides reliable redundant power for switches, optical transceivers and room communication terminal devices.
3. Industrial Control System
Delivers anti-interference DC power for rail transit, industrial and power control terminal equipment.
4. Security & IoT Devices
Supports long-term stable power supply for security monitoring and IoT remote terminal devices.
5. Power System Upgrade & Expansion
Suitable for old 24V power system replacement and capacity expansion with low renovation costs.

FAQ
Q1: Does this module support parallel operation of multiple units? Can it realize automatic current sharing after parallel connection?
It supports parallel redundant operation of multiple modules. Equipped with built-in intelligent current sharing control technology, multiple parallel modules can automatically balance load current with high current sharing accuracy, no partial load or overload. The capacity can be flexibly expanded according to actual load power, fully meeting the redundant backup and high-power power supply requirements of communication systems.
Q2: Is the fan noisy during module operation? Can it run continuously for a long time?
The module adopts an intelligent temperature-controlled speed-adjustable fan, which runs at a low speed with extremely low noise under low temperature and light load conditions, and automatically speeds up for heat dissipation under high temperature and full load, balancing heat dissipation performance and mute effect. With industrial-grade design, it supports 7×24-hour uninterrupted continuous operation with high stability, suitable for unattended computer rooms and base stations for a long time.
Q3: Will the output voltage fluctuate under unstable input voltage conditions?
No. With a voltage regulation accuracy of ≤±0.3% and source effect of ≤±0.1%, it can stably output 24V DC voltage within the wide input voltage range of 185~265V AC. It effectively resists grid voltage fluctuations and instantaneous voltage drops, ensuring stable output voltage and no impact on the operation of rear-end communication equipment.
Q4: Will the module damage rear-end equipment in case of failure? What protection mechanisms are available?
It will not damage rear-end load equipment. The module is built with multiple protections including overvoltage, undervoltage, overcurrent, short circuit, overheating and lightning surge protection. It can automatically limit current, cut off power and send alarms in case of faults, quickly disconnect the fault circuit and avoid abnormal current and voltage impact on equipment. Meanwhile, it supports fault self-diagnosis to accurately locate faults and facilitate operation and maintenance troubleshooting.
Q5: Is the installation complicated? Can it be replaced with power on?
The installation is simple and convenient, compatible with standard rack-mounted installation of mainstream communication cabinets with standardized wiring and wide compatibility. It supports hot swapping, allowing direct plugging, unplugging and replacement or addition of modules while the power system is running, without shutdown and power failure, and no impact on the normal operation of all rear-end communication equipment, which greatly reduces operation and maintenance shutdown losses.