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Key Business
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Data Center Solutions
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Power & Electrical Facilities
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ICT Infrastructure
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Defense Industry
Power &UPS LFP Battery Switchgear &
Electrical Facilities
Distribution Board ESS & Solar PV Systems Electrical Contracting -
EN
Business Areas
Data Center Solutions
We provide the latest data center solutions
with safety, efficiency, and flexibility.
UPS · STS
Keor Flex
Keor FLEX is a three-phase online double-conversion UPS designed for data centers. Its modular structure and fully hot-swappable architecture ensure uninterrupted scalability while optimizing total cost of ownership (TCO).
With up to 98.4% efficiency in double-conversion mode, it significantly reduces energy consumption and cooling costs.
In addition, it supports configurations of up to 1.2 MW within a single frame and up to 4.8 MW through parallel expansion, enabling optimal capacity design tailored to the protected load. Fully hot-swappable modules, front access design, and predictive diagnostics make maintenance and service operations easy and convenient, contributing to cost savings and improved availability.
Various options and configurations—such as top/bottom cable or busbar connections, TNC/TNS grounding systems, and Icw limitations—allow flexible adaptation to diverse electrical infrastructure requirements.
Furthermore, smart grid functionality along with remote control and monitoring capabilities complete the premium features offered by the Keor FLEX UPS.
UPS · STS
Keor MOD+
Keor MOD+ delivers scalability, space efficiency, ultra-high efficiency, and hot-swappable functionality. Featuring hot-swappable 60 kW modules in a compact 3U form factor, it can scale up to 1.8 MW. It ensures N+X redundancy and offers 96% efficiency (up to 99% in ECO mode), providing best-in-class uptime and significant energy savings.
Engineered for exceptional reliability, Keor MOD+ maintains 100% rated performance without derating at temperatures up to 40°C. With lithium-ion battery compatibility and over 190 monitoring parameters, Keor MOD+ stands out as one of the most advanced and adaptable UPS solutions in its class.
UPS · STS
HPM Series
- All units—including power modules, bypass modules, and monitoring modules—adopt a modular design for easy integration
- Power modules, bypass modules, monitoring modules, and ECU control modules all support hot-swappable functionality
- Wide input voltage range: 138–485V
(UPS output is derated to 40% when input voltage is below 305V) - Multi digital bus and redundant parallel control system ensure continuous operation even in the event of a single circuit failure
- Continuous UPS operation is maintained even if a module fails during single or parallel operation
- Thick conformal coating enables operation in harsh environments such as high temperature, high humidity, and dust
- Input power factor up to 0.99
- Maximum efficiency up to 96% with 3-level topology design
- THDi ＜ 3% (at 100% linear load)
- Operates in sleep mode under very light load conditions
- LBS function enables synchronized operation of two independent UPS systems, improving overall system reliability
- Compatible with both VRLA and lithium batteries
- Supports parallel expansion up to 8 units
- Battery sharing supported among parallel UPS systems
- Output power factor of 1.0, capable of supplying 100% unbalanced load
- Excellent load adaptability, supporting both inductive and capacitive loads
- 7-inch color touch LCD (standard) / 10-inch color touch LCD (optional)
- Supports recording and exporting of history logs and fault logs
- Supports SNMP, RS232, RS485, BMS, and dry contact interfaces
- Supports online firmware (FW) and software (SW) upgrades
- Supports EPO & REPO functions
- Power Walk-In function reduces inrush current during startup, lowering generator capacity requirements
UPS · STS
STS Emergency Transfer Switch
(16A–2000A)
(Up to 3000A optional)
- Continuously monitors voltage and frequency
- Automatic instantaneous transfer via SCR
- Double-sized neutral conductor (2 x In)
- Cooling via redundant fans with status monitoring
- All system control boards feature redundant internal power supplies (3x3)
- Various options available for complete monitoring
- Protects critical loads from fault currents originating from the input source
- Fully compliant with all international product standards
- SCR failure detection and backfeed protection for enhanced system safety
- Easy maintenance through full front access design
- High-reliability and safe circuit breakers applied
- Provides dual manual bypass for seamless maintenance
- Top and bottom cable entry for maximum installation flexibility
- Isolation transformer / Withdrawable circuit breaker / Output distribution panel / Transformerless (no neutral)
E-HWA ELECOMM Co., Ltd. | CEO Lee Jeong-sang
Address 1061-55 Hoean-daero, Gwangju-si, Gyeonggi-do, Rep. of Korea
Tel +82-31-798-9800-3 | Fax +82-31-798-9804
Email ehwaelecomm@daum.net
E-HWA ELECOMM Co., Ltd. | CEO Lee Jeong-sang
Address 1061-55 Hoean-daero, Gwangju-si, Gyeonggi-do, Rep. of Korea
Tel +82-31-798-9800-3
Fax +82-31-798-9804
Email ehwaelecomm@daum.net
About Us
Company Overview
Vision
History
Organization
Location
Sustainability Management
Integrity Management
Internal Reporting Center
ESG
About Us
Company Overview
Vision
History
Organization
Location
Sustainability Management
Integrity Management
Internal Reporting Center
ESG
© 2026. E-HWA ELECOMM Co., Ltd. All Rights Reserved.
