Highly Efficient and Energy-saving Industrial Grade DC Power Supply Battery Charger

Product Introduction
Model: TH230D20ZZ-3G, Tonhe TH series high-frequency switching rectifier module
Purpose: Industrial DC power supply and battery charger for DC screen systems
Control scheme: Adopts resonant double closed-loop control technology
Input: Three-phase wide AC input; Output: Adjustable DC, max 20A
Cooling: Fanless natural air cooling, built-in isolation diode
Communication: Standard RS485 interface, realize four-remote function
Working mode: Automatic CV / CC charging, support multi-module parallel
Operation: 24-hour continuous running, suitable for unattended power sites

Product Parameters

Product Advantages
1.High Efficiency & Energy Saving: Up to 93% conversion efficiency, high power factor, effectively reduce power loss and operation cost for long-time running.
2.Stable Charging Performance: Precision CV/CC automatic switching, low ripple, stable charging curve to extend battery service life.
3.Rich Protection Mechanism: Complete multi-layer protection, short-circuit self-recovery, no need manual reset after general fault. Built-in DC isolation diode, simplify cabinet wiring.
4.Intelligent Communication & Easy Networking: Standard RS485 interface, compatible with DC screen monitoring unit, support remote parameter setting, data upload and alarm.
5.Reliable Parallel Redundancy: Good current sharing performance, support N+1 hot standby parallel expansion, single module failure will not affect whole system power supply.
6.Natural Cooling, Low Maintenance: Fanless natural air cooling design, no fan wearing, low noise, less fault points, suitable for unattended sites.

Factory Advantages
1.Professional R&D for Power Supply: Tonhe focuses on high-frequency rectifier module, DC power system for many years, master resonant soft-switch core technology, independent intellectual property.
2.Strict Quality Control: Full aging test, high-low temperature test and surge test before delivery, meet electric power industry standards. ISO & CE available.
3.Stable Supply & Short Lead Time: Standard model TH230D20ZZ-3G in stock, support bulk order, one-stop supporting for other TH series modules.
4.Professional Technical Support: Provide parameter guidance, parallel debugging, communication protocol document, after-sales tracking and remote technical service.
5.Customization Support: We can provide matching DC cabinet scheme, monitor and auxiliary accessories according to customer system requirement.

Application Scenarios
1.Substation, power plant, hydropower station DC screen battery charging system
2.Railway, tunnel, new energy station DC operating power supply
3.Industrial control, metallurgy, petrochemical unattended power distribution room
4.Communication base station, signal power supply backup system
5.Fire control emergency DC power supply system

FAQ
Q1: Can TH230D20ZZ-3G work in parallel with multiple modules?
A: Yes. It supports multi-module parallel N+1 redundant operation, the current sharing deviation ≤±3%. Suitable for capacity expansion and uninterrupted power supply requirement.
Q2: Does this charger need external isolation diode?
A: No. It is built with DC output isolation diode, which can prevent reverse current from battery, reduce cabinet wiring and component cost.
Q3: What is the cooling way? Can it work in high temperature environment?
A: Natural air cooling (fanless). Rated working temperature range is -10℃ ~ +40℃. If ambient temperature continuously higher than 40℃, we need to optimize cabinet ventilation.
Q4: What communication protocol does RS485 use? Can it connect to third-party monitoring host?
A: It adopts standard power communication protocol, compatible with Tonhe DC screen monitor. We can provide protocol document for customer to integrate with third-party system for secondary development.
Q5: What kind of battery can this module charge?
A: Mainly for 220V lead-acid storage battery group, widely used for valve-regulated sealed lead acid battery (VRLA). Support automatic float charge / equal charge switching controlled by monitoring unit.