Tag Archives: MADE IN KOREA


Our Remote Terminal Unit is LBS (Load Break Switch) and ACR (Automatic circuit recloser ) microprocessor controller.

Control cubicle is heat insulated to minimize temperature variation and protected controller from solar heating as adopting sunshine cover to the outside and heat insulation inside of control cubicle. Vents of the control cubicle are screened against vermin’s entry and door is sealed with a gasket.

Our microprocessor controller are fully protected from entry of moisture and condensation able to use any places where tropical, moderate and severe humidity area is located on.All the measured values and event records are stored in the microprocessor control for Sending data to SCADA system or off-line checking maintenance and analysis. All telemetry communication can be supported with DNP3.0, MODBUS, IEC60870-5-101/104 communication protocols

Sensitive sensors provide to incorporate the functions of an over-current protection relay, a ground fault relay, a sensitive earth fault relay and to measure line current, voltage amount, real and reactive power, power factor, demand watts and VARs, frequency and so on.

Recloser mechanical parts are drastically reduced, resulting from high reliability and maintenance free operation during the life time. We use low-voltage power source supplying from low voltage distribution line by Solar Panel or PT and a fully charged battery and trip and close capacitors provide Recloser operation over hundreds of open-close operations as back-up upon loss of control Power. This allows Recloser operation independent of the high voltage supply, the low voltage supply and the battery and capacitor conditions with dead line operation capability required for SCADA and distribution Automation.

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MCCB Molded case Molded Case Circuit Breaker MCB Miniature Circuit Breaker MC Magnetic Contactor ( Made in Korea)

MCCB Molded case Molded Case Circuit Breaker


Advanced Breaking Performance and Various Selectivity

Product Range: 16 A – 800 A in 5 Frame (AF) Sizes
High breaking capacity up to 85 kA with Ics=100% Icu
Thermal Adjustability in entire range
Rated Insulation Voltage, Ui = 1000 V
Rated Operational Voltage, Ue = 690 V
Impulse Withstand Voltage, Uimp = 8 kV
Standardized Height of Products by Frame (AF)
Please check our catalog for more details or contact us Click here to download

MC Magnetic Contactor

MC magnetic contactor shinhwa ent korea

SHCLS Series AC Contactors are latest products . The series of products for frequency of 50/60Hz, rated insulation voltage up to 690-1000V, rated operational current up to 9A-800A at rated operational voltage up to 380V under the category AC-3.

SHCLS Series AC Contactors are mainly used for making breaking electric circuits at a long distance and frequent starting & stopping and reversing control of AC motors. They products comply with IEC947. VDE0660, Gb14048.

Please check our catalog for more details or contact us Click here to download

Miniature Circuit Breaker

■ Fine and unique appearance, advanced design

■ Short-circuit and overload dual-protection performance

■ High-breaking capacity (6kA) that is leading among the world similar products

■ Mechanical life:4000 times

■ Convenient and reliable installation


■ Model: SHE4-63

■ Pole No.: 1P、1P+N、2P、3P、3P+N、4P

■ Rated current(A): 1、2、3、4、6、10、16、20、25、32、40、50、63

■ Rated voltage: AC 230. 230/400, 400

■ Rated Frequency: 50/60Hz

■ Tripping curve: B,C,D

■ Rated short-circuit capacity (Icn) :6000A

■ Mechanical life: 20000 times

■ Contact position indication window

■ Degree of protection: IP20

■ Connection terminal: Pillar terminal with clamp

■ Connection conductor: up to and including 16mm

■ Terminal Connection Height:H 1 = 19.5mm,H2=21 5mm

■ installation : DIN-rail mounting

Please check our catalog for more details or contact us Click here to download



Air Circuit Breaker

Our Air Circuit breaker have Highest breaking capacity with the same range in Korea.
Optimization for panel design
– 2 types standards of outline dimension
– Optimization for panel installation due to light weight
Firstly developed Digital type OCR in Korea
– Prompt response against accident owe to its precise measuring and high-speed operation
– Detailed classification of setting value to meet various working environments
– Device protection with large current method of GR and human protection function with OCNR
Preparation of various models
630AF, 800AF, 1000AF, 1250AF, 1600AF, 2000AF, 2500AF, 3200AF, 4000AF,
5000AF, 6300AF
ASTA and CB TEST certified
Internationally acknowledged ASTA certification for 2000A 50kA, 1600A, 3200A and 5000A 65kA and
also CB TEST certified for 630 – 1600A at 600V 50kA, 2000 – 3200A at 600V 65kA.
Considering user’s double safety by making Mold construction for breaking part Synchronized
operation for mechanical closing and trip device is possible through connection cables between 2 breaker which are installed each vertically and horizontally
Convenient handling due to attachment of control circuit terminal on front panel

Automatic Transfer Switch

Our ATS provides a stable power and a user-centred safety as well as the reliability and safety based on the quality and intensive technology that are recognized even by UL.
Our Auto Transfer Switch is designed and produced by applying a new IT
technology and it provides an optimal solution that is suitable in any customer’s
environment. It is a premium product equipped with a user-friendly protection function in order to satisfy diverse needs of customers and to ensure the safety.

High transfer performance for inductive load current

It is designed according to the recommended practice for emergency and standby power systems IEEE 446 , Independently tested and complying to ATS standards IEC 60947-6-1 (2005) ,and Available in Direct or Delay transfer to suit wide range of power transfer requirement

2 pole to 4 pole. 60A to 6300A
Advance programmable microprocessor controller

Miniature to Uninterruptible and High-pressure vacuum
From transfer to breaking, retain nations maximum full series
latch structure gives stable current transfer
Block spring method provides stable Open
Certified by ISO 9000 and suitable for UL. Exported to the U.S
Generating motor load transform

Saving power : It is in an instantaneous excitation mode with little operating.(1.6A in case of AC 220V operation)
Safe Design : The breaking part is molded for a dust-proof so the operational cycle of the contact
part is semi-permanent.
2-Coil Mode : It adopted a simple operation mode using 2 coils.
Miniature : It can be built inside the portable generator or UPS.
Low Cost : It is a miniature type and optimal for a single phase with less than 200A (non inductive)
Standard : IEC 60947-6-1 / UL1008

Our New ATS Controller provides TRANSFER time from Zero (0) Sec. Up to 30 Sec. and can use from UPS up to General Products.

High transfer performance designed according to the recommended practice for emergency and standby power systems IEEE 446 , Independently tested and complying to ATS standards IEC 60947-6-1 (2005).

1 AUTO/MANU button AUTO/MANUAL MODE Select Switch
2 TIMER(SEC) When Automatic transfer from EMER. To KEPCO. Adjust the time.(0~30sec)
3 TIMER LAMP Display lamp flicker during transfer operation flicker (KEPCO& Emer.)
4 POWER Display the power supply of KEPCO. side
5 MANUAL LAMP LAMP indicating that ATS MODE is set to MANUAL
6 AUTO LAMP LAMP indicating that the ATS transfer mode is set to AUTO
7 EMER. POWER Display the Power Supply of Emergency side.
9 TIMER(SEC) When automatic transfer from KEPCO. to EMER. Adjust the time(0~30sc)
10 KEPCO Manual Operation button Close to KEPCO. side manually.
(Do not operate while supply the power)
11 EMER Manual Operation button Close to Emergency side manually.
(Do not operate while supply the power)

Model: ATS 02

System Voltage AC220V

Rated Frequency 50Hz , 60Hz,

Transfer Burden 3VA (AC)

Insulation 1.5kV/1Min.

Ambient Temperature -20 ~ 60 ℃

Size 120 * 120 * 84 mm

Weight 500g (0.5kG)


Surge Protection Device & Lightning Protection Products


In today’s world, where technology and connectivity are an essential part of our lives, power surges and lightning strikes can cause significant damage to electrical and electronic devices. Surge Protection Devices (SPDs) and Lightning Protection Products are designed to protect your equipment from these sudden spikes in voltage and surges.

At Shinhwa, we offer a wide range of high-quality SPDs and Lightning Protection Products to ensure the safety and protection of your devices. Our products include power supply system and IT SPDs, lighting counters, and earthing devices that are suitable for various applications and industries.

Power Supply System and IT SPDs:

Our power supply system and IT SPDs provide comprehensive protection against voltage surges and spikes. These devices are designed to protect sensitive electronic equipment, including computers, servers, switches, and routers, from the damaging effects of power surges. Our SPDs are highly effective in preventing damage caused by lightning, power grid fluctuations, and other electrical disturbances.

Lightning Counters:

Our lightning counters are designed to accurately monitor and record the number of lightning strikes in a specific area. These devices can help you keep track of the frequency of lightning strikes in your area, which can be useful in determining the level of risk to your equipment and property.

Earthing Devices:

Our earthing devices are essential components in any lightning protection system. They are designed to provide a safe path for lightning to follow, ensuring that it does not damage your equipment or property. Our earthing devices are made from high-quality materials and are designed to meet international safety standards.

At Shinhwa, we understand the importance of protecting your equipment from power surges and lightning strikes. Our Surge Protection Device and Lightning Protection Products are designed to provide you with the peace of mind you need, knowing that your equipment is safe and protected. Contact us today to learn more about our products and how we can help you protect your equipment.


Please contact us for catalogue and information


Our metering outfit (combined VT-CT ) are designed to contaminated areas,Indoor or outdoor type, for coastal, rural or urban, industrial, etc.

All our metering outfit complies with ANSI and IEC standard


Normal Ration is from 15A up to 2000A but can change base on customer request


Contact us for inquiry, get catalogues and more technical information.

Auto Section Switch

Automatic Sectionalizing Switch

Unique and Field Proven Puffer and Heavy duty Tulip-Shaped Contacts made of arc resistant Cu-W tip ensures short arc-extinguishing time and more than 100 times load current capacity.
The mechanism designed with very simple and reliable structure that act quick open/close
It operation with low tripping energy and is independent from operator’s handling power or speed.
Built-in control power supply is provided.(from 1 Phase AC13,200V to DC24V)

We can produce both oil immersed and air insulated type

Surge Arrester

Surge arrester can be divided into many types according to its application as :
Distribution type,  Power station type  ,Protecting capacitor type  ,Transformer neutral point type  ,Protecting motor type  ,Electrified railway type  ,Line type  ,etc.
Line type surge arrester can be divided into series spacing type and without spacing type and in series spacing type can be divided into supporting spacing and sure air spacing type


Product Features
It has a series of outstanding features such as good protection performance, high circulating capacity ,less reaction time, smooth steep-wave characteristic
Excellent silicon rubber material is used in composite housing, possessing good anti-tracking and ageing-resistant performance as well as good hydrophobicity ,ion transferring and high pollution proof

Special technique and internal structure are used in composite housing surge arrester, possessing higher technical strength and good explosion-proof performance

Contact us for inquiry, get catalogues and more technical information.



Disconnect Switch


We producing with extra high quality and you can used to isolate the section which has electricity from the section with no electricity. It is done for a full safety method during electrical equipment maintenance or service


Contact us for inquiry, get catalogues and more technical information

Ring Main Unit

The Ring Main Units(RMU) are designed to use the secondary distribution of 15/24/33 kV class underground line and to enable connection, supply and protection by current limiting fuse combination. It can be use to protection one or two transformers in combination with circuit breaker, RMU has been designed for use as a stand alone device or can be easily integrated into distribution automation and remote control schemes using the inbuilt communications capability.

The in-built user configurable distribution automation functionality can be used with or without a communications system and will reduce outage time and increase profitability in your network. RMU can offer with motorized mechanism ,controller, RTU & remote operation.


– Reliable ON-OFF-Earthed three-position switch and Toggle-spring operation mechanism

– Maintenance free and easy installation

– Bushing standardized for ANSI standard at front panel for cable connection with elbow connector.

– Compact Switchgear Solution for Secondary Distribution

– Compact and light weight design

– Modular design using Spring Charging Mechanism

– Mechanical operating Stability

– All functions necessary for such applications – sensing, control and communications


– Metal enclosed tank is hermetically sealed, this has no influence with environmental effect between inner and outer tank effects such as dirt, small insects, and moisture and so on.

– Load break switch operating is possible in the front of Ring Main Units.

– All switching operations can be made safely to personnel because of interlocking system that operates manually according to the switch position by the operator.

– CB will be tripped when Fault current occurs automatically.


– Metal enclosed unit for indoor installation and type tested.

– Insulated by SF6 Gas

– No Influence with climate.

– ON-OFF-EARTH, three position load break switch.


– Approachable and operable safely in the presence of power in the cables.

– Clear indication of operation status via mimic diagram on front panel.

– Automatic interlocking system between CB & DS.

– Voltage detector to check the presence of voltage in the cable.

– Clear indication of operation status and pressure gauge

Contact us for inquiry, get catalogues and more technical information.