Category Archives: Low voltage and Protection

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