Top China Backup Power System Manufacturer & Factory

Guangzhou EVS Powers Co., Ltd. delivers engineered, heavy-duty industrial switching power supplies, high-efficiency DC rectifier shelves, N+1 redundant power modules, and pure sine wave inverters for critical global applications.

Featured Industrial & Telecom Power Products (Group A)

High-precision rectifiers, DC-DC step converters, and redundant battery chargers designed to survive in demanding telecom and utility environments.

2026 New Design Single Output 48V DC Converter Power Supply R4830

2026 New Design Single Output 48V DC Converter Power Supply R4830 Model Telecom Industry AC220V/110V Input 30A Output 95%

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3KW Industrial AC DC Rectifier System

3KW Industrial AC DC Rectifier System 230V AC 110V DC Converter 20A Output Current Single 92% Efficiency Switching Power Supply

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Hot New 2026 1500W 48VDC Single 60Hz DC-DC Step Converter

Hot New 2026 1500W 48VDC Single 60Hz DC-DC Step Converter Telecom 30A Output Current 220V 90% Efficiency EVD2U-4850 Microwave

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Single Phase 1KVA 800W Pure Sine Wave Inverter

Single Phase 1KVA 800W Pure Sine Wave Inverter 48V DC 220V AC Converter 50Hz Output Frequency Industrial Telecom Rack Mount 95%

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19inch Rack Mount Rectifier System

19inch Rack Mount Rectifier System 110V DC Power Supply 3kW Battery Charger N+1 Modules Single Output 50/60Hz

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EVS48200-H6B1 220V AC 48V DC Rectifier System

Hot Selling EVS48200-H6B1 220V AC 48V DC Rectifier System 6U Rack Mount 50A Single 380V Input Telecom Industry Power Systems

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3KVA Single Phase Rack Mount Inverter

3KVA Single Phase Rack Mount Inverter 48V DC 120V/125V 19 Inch 3000W Sine Wave 50/60Hz for Industrial Data Center Use

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1U Rack Mounted 12V to 48V DC-DC Converter

1U Rack Mounted 19 Inch DC-DC Converter 12V DC to 48V DC 20A Output Current Single Output for Industrial Use

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Global Commercial & Industrial Backup Power Landscape

The dynamics of modern industrial uptime mandate highly robust switching topologies, clean galvanic isolation, and modular redundancy.

Data Centers & Edge Sites

With high-density cloud networks processing millions of real-time transactions per second, standard utilities cannot guarantee pure sinusoidal current. EVS rack-mount rectifiers and pure sine wave inverters bridge the transition to battery backups without harmonic disruption, maintaining strict compliance with critical operational standards.

Industrial IoT & Automation

Modern factory floor layouts rely on digital controls (PLCs) susceptible to micro-second brownouts. Industrial DC-DC step converters and power supplies from Guangzhou EVS Powers protect automated assembly chains, assuring high conversion efficiency (up to 95%) and maintaining functional continuity.

Microgrid & Substation Integrity

Utility substations require stable 110VDC control loops to trigger trip breakers and protective relays. High-efficiency charging modules and parallelable power systems with N+1 hot-swappable configurations prevent localized failures from expanding into regional grid blackouts.

State-Of-The-Art Manufacturing Infrastructure

A look inside Guangzhou EVS Powers' manufacturing facility, where custom engineering meets fully automated electronic production chains.

Wire Cutting Production Line Wire Cutting
Plug-In Manual Insertion Line Plug-In
Soldering Tin Station Soldering Tin
Post-Assembly Operational Test Test
Epoxy/Glue Filling Station Glue Filling
Full-load Burn-In Chamber Burn-In Test
Final Packaging and Protection Line Packaging
Precision Winding Machine for Transformers Winding Machine
Automatic Wire Cutting Machine Wire Cutting Machine
Automatic Wave Soldering Equipment Automatic Soldering
Laser Engraving and Marking Machine Laser Engraving
Precision Canning Machine Canning Machine
Primary Assembly Line Overview Main Assembly Line
95%
Peak Conversion Efficiency
150k+
MTBF Hours (Bellcore)
<10ms
Dynamic Response Time
100%
Burn-In Tested Products

R&D and Testing Facility

Our laboratory ensures strict compliance with CE, FCC, RoHS, and local EMC parameters before a system leaves the facility.

Comprehensive Diagnostics Lab Overview
DC Power Supply Tester DC Power Supply Tester
AC Withstand Voltage Tester AC Withstand Tester
Constant Temperature and Humidity Test Chamber Environmental Chamber
Optical Microscope for Quality Assurance Inspections Optical Microscope
Thermal Aging Test Facility Aging Test Rig
CAD/CAE Electronic Design Station Design & CAD Center

Macro-Industry Solutions & Global Field Implementations

EVS Systems are engineered to mitigate the specific challenges encountered in regional grids and specialized telecommunication base stations.

Outdoor Server Cabinet Systems (IP55)

In hot, humid coastal regions or dusty desert regions, ambient conditions will damage standard electronics. EVS provides integrated outdoor DDF IP55 cabinet solutions (EVS-4890EPS series). These combine DC rectifiers, active cooling fans, DC-DC step converters, and smart battery telemetry boards in a weather-sealed steel rack to ensure reliability.

Microwave and Base Station Power

Remote telecommunication networks rely on high-frequency microwave transmission. The input voltage for these systems must be extremely clean. EVS telecom DC-DC converters (such as EVD2U-4850) manage ripple voltage to less than 100mV peak-to-peak, minimizing bit-error rates and transmission noise in long-distance transceivers.

B2B Heavy Utility Integration

Switching heavy inductive loads inside mines, oil fields, or train yards causes voltage drops. Our 110V/220V industrial switching power systems are designed with high surge capability and thermal overload protection to operate continuously under harsh load transients.

Guangzhou EVS Powers Technology Roadmap

Our engineering plan for higher power density, integration of wide bandgap semiconductors, and intelligent grid interfaces.

2025 - Smart High-Density Digital Control Modules

Transitioning our industrial rectifier lineup from legacy analog feedback loops to high-speed Digital Signal Processors (DSP). This shift decreases component count while enabling dynamic power sharing, automatic voltage trimming, and remote telemetry over RS485 (Modbus) or CAN buses.

2026 - Integration of Silicon Carbide (SiC) & Gallium Nitride (GaN)

By replacing silicon transistors with Gallium Nitride (GaN) and Silicon Carbide (SiC) in our converters and high-efficiency switching designs, we aim to push power conversion efficiency beyond 96% and reduce the physical height of rackmount units to 1U.

2027 - Advanced Hybrid Lithium-Battery Support

We are engineering next-generation DC-DC rectifiers and bidirectional chargers with smart charging algorithms designed for lithium iron phosphate (LiFePO4) storage batteries. This includes built-in thermal modeling and cell balancing communication features to optimize battery lifetime.

E-E-A-T Assurance: Global Logistics & Regulatory Standards

Our company maintains active global compliance partnerships to facilitate customs clearances, regional distribution, and site certification.

Guangzhou EVS Powers Co., Ltd. Profile

Located in the international trading hub of Guangzhou, China, EVS is a professional manufacturer of switching power supplies, DC power systems, power supply units, DC-DC converters, and power inverter series. We focus on customer satisfaction, quality-centric development, and cost-effective production. By sharing our technology and experience with partners in Europe, the Americas, Australia, the Middle East, and Southeast Asia, we help build robust electronic infrastructures globally.

Guangzhou EVS Powers Office Building

Compliance Standards

Our industrial products are developed, manufactured, and inspected according to standard safety frameworks:

• Electrical Safety: CE LVD (EN 62368-1)
• Electromagnetic Compatibility: EN 55032 Class A/B, FCC Part 15
• Environmental Impact: RoHS Recast (EU 2015/863), WEEE
• Grid Integration: IEEE 519 (Harmonic distortion control)

OEM & ODM Service Capabilities

EVS offers tailored engineering services to fit specific B2B project demands:

• Custom input/output voltage configurations (12V, 24V, 48V, 110V, 125V, 220V)
• Custom metal chassis designs (1U, 2U, 4U, 6U rack enclosures)
• Dynamic thermal control and customized conformal coatings for damp environments
• Private labeling and packaging solutions

Industrial Backup Power Systems FAQ

Get professional technical answers to common queries regarding DC converters, industrial rectifiers, and installation practices.

Q1: What is the main advantage of utilizing an N+1 rectifier design?
An N+1 parallel redundant rectifier configuration ensures system integrity by adding one more module (1) than required for the base load (N). If a single module fails, the remaining active units immediately pick up the load without interruption. This dynamic transition ensures continuous system uptime.
Q2: How do your pure sine wave inverters differ from modified sine wave variants?
EVS pure sine wave inverters recreate a smooth sinusoidal wave output with very low Total Harmonic Distortion (THD < 3%). Modified sine wave inverters output stepped square waves, which can cause excessive heat, noise, and potential failure in inductive motors, critical medical equipment, and precise telecommunication electronics.
Q3: Why is 110V DC / 125V DC preferred for industrial breakers and control rooms?
Higher voltage systems like 110VDC or 125VDC minimize line drop over long distances in large power plants and factories. Furthermore, high-power circuit breakers and protective relays require robust electromagnetic coils that operate more efficiently at higher voltages compared to standard 24VDC configurations.
Q4: What role does the "Burn-In Test" play in your manufacturing line?
The burn-in test subjects our power supplies to full-load operation at high temperatures for extended periods. This process triggers early component infant mortality before delivery, weeding out weak components and ensuring the long-term reliability of our products.
Q5: Can EVS DC-DC step converters function within high-interference radio systems?
Yes. EVS telecom-grade DC-DC converters are built with high-quality input and output EMI filters. They comply with EN 55032 Class B standards, preventing high-frequency noise from interfering with delicate radio transceivers and microwave transmission equipment.
Q6: Does Guangzhou EVS Powers support customized output profiles?
Yes, our engineering department provides comprehensive OEM/ODM customization. We can adjust charging parameters, modify physical rack configurations, alter enclosure IP classes, and configure custom output voltages for specific industrial battery chemistries.

Featured Industrial & Telecom Power Products (Group B)

Off-grid pure sine wave converters, smart chargers, waterproof cabinet enclosures, and high-efficiency motor controllers.

EVS Pure Shine Wave 12v to 220v AC Inverter

EVS Pure Shine Wave 12v to 220v AC 1000 Watt DC Inverter for Cars 4.5A Single Output 85% Efficiency 50Hz/60Hz

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19inch 1U Rack Mount DC125V AC110V220V 1000VA Inverter

High Quality 19inch 1U Rack Mount DC125V AC110V/220V 1000VA 50Hz 91% Efficiency Pure Sine Wave Telecom/Electric Inverter

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EVSPOWER EVS4860-H1A2 1U Telecom Power System

EVSPOWER EVS4860-H1A2 1U Height Telecom Power System AC/DC 80-300VAC 48V/54V 60A Single Output 3200W 50Hz Hot Swap Rectifier for

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Industrial Power Inverter 24V 220V 1000W

Industrial Single Output Power Inverter 24V 220V 1000W Overvoltage Protection 15V Off-Grid Converter LCD Display Pure Sine Wave

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EVS-4890EPS Waterproof Server Rack Mount Cabinet

EVS-4890EPS OEM Waterproof 19inch DDF IP55 Server Rack Mount Networking Cabinet Outdoor 4u 6u 9u 12u 32u 42u AC-DC Single

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2025 New Design 110V DC Power Supply 3000W

2025 New Design 110V DC Power Supply Excellent Service 20A Single Output for Industry 40A Output Current 3000W Output 60Hz 220V

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Industrial Charging Module 20A Output 230VAC to 150VDC

230V AC 150V DC Industrial Charging Module 20A Output Current 220V Switching Power Supply 150V DC Converter 20A Output Current

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48V to 12V DC/DC Converter Inverter with LCD Display

Single Output 48V 12V DC/DC Converter Inverter LCD Display 50A 92% Efficiency 50Hz/60Hz Industrial Motor OEM Customized Support

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