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Noise Cut Transformer Product List

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Noise Cut Transformer NCT-F1

Noise Cut Transformer NCT-F1

This is the most basic and proven long-selling model.

It has a coaxial and different core structure, making it suitable for mass production and relatively inexpensive as a basic model, yet it possesses a significantly high noise attenuation rate among noise prevention products. Additionally, it is designed in a shape that faithfully adheres to the principles of noise prevention, equipped with triple shielding, housed in a sturdy and low-impedance outer casing, and has the capability to shield all conductive parts, including terminals and lead wires. Compared to the NCT-G type, it is slightly superior in efficiency and voltage fluctuation rate.

  • power supply
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Noise Cut Transformer NCT-F3/F4

Noise Cut Transformer NCT-F3/F4

Both input and output can switch between 100V and 200V.

For example, when used externally alongside your equipment, such as being placed in a consultation room in combination with medical devices, care has been taken with the appearance to ensure that it does not compromise the high-quality image of the entire room. Additionally, to facilitate easy installation and wiring, we have prepared two shapes to choose from—vertical (F3 type) and horizontal (F4 type)—to suit your installation space and aesthetic preferences.

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Noise Cut Transformer NCT-F5/F6

Noise Cut Transformer NCT-F5/F6

This is a cost-performance model suitable for embedded systems.

The NCT-F5 and F6 models are low-cost types that pursue cost performance. They are suitable for situations where appearance is not a concern, such as when integrated into the cabinet of the equipment being installed. By keeping the price down, we have successfully added new know-how to ensure that performance does not decline, resulting in good characteristics.

  • power supply
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Noise Cut Transformer NCT-I1

Noise Cut Transformer NCT-I1

Low price, standard type / Ideal for equipment integration.

This is a small, low-cost "Noise Cut Transformer" developed with a focus on general-purpose electronic devices for mass production and portable electronic devices. By utilizing a newly developed noise prevention mechanism (which has been newly patented), it effectively blocks normal mode noise across a wide frequency range, which cannot be prevented by conventional isolation transformers or shielded transformers, thereby significantly improving the noise resistance of the connected devices, all at a low cost. Additionally, its wideband common mode noise blocking capability protects the load devices from surges caused by induced lightning. In addition to standard voltage models, we can also produce units with custom voltages upon request, allowing for replacement of the power transformer in connected devices. Furthermore, it can eliminate the need for other noise prevention components such as power filters.

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Noise Cut Transformer NCT-I2

Noise Cut Transformer NCT-I2

It is a model with a receptacle for an outlet.

This is a small, low-cost "Noise Cut Transformer" developed with a focus on general-purpose electronic devices for mass production and portable electronic devices. By utilizing a newly developed noise prevention mechanism (which has been newly patented), it effectively blocks normal mode noise across a wide range of frequencies that cannot be prevented by conventional isolation transformers or shielded transformers, thereby significantly improving the noise resistance of the connected devices, all at a low cost. Additionally, its wide-band common mode noise blocking capability protects the load devices from surges caused by induced lightning. In addition to standard voltage products, we can also produce units at your desired voltage through made-to-order production, allowing for replacement of the power transformer in the connected devices. Furthermore, it can eliminate the need for other noise prevention components such as power filters.

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Noise Cut Transformer NCT-I4

Noise Cut Transformer NCT-I4

It is reassuring, especially in cases where a lightning surge is expected.

This is a small, low-cost "Noise Cut Transformer" developed with a focus on general-purpose electronic devices for mass production and portable electronic devices. By utilizing a newly developed noise prevention mechanism (which has been patented), it effectively blocks normal mode noise across a wide frequency range that cannot be prevented by conventional isolation transformers or shielded transformers, thereby significantly improving the noise resistance of the connected devices. Additionally, its wideband common mode noise blocking capability protects the load devices from surges caused by induced lightning. In addition to standard voltage models, we can also produce units with custom voltages upon request, allowing for replacement of the power transformer in connected devices. Furthermore, it can eliminate the need for other noise prevention components such as power filters.

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Prevents overvoltage that cannot be mitigated by surge protectors - Noise-cut transformer NCT-P

Prevents overvoltage that cannot be mitigated by surge protectors - Noise-cut transformer NCT-P

Lightning protection + surge-resistant transformer

Lightning protection + surge-resistant transformer, impulse withstand voltage 30kV, insulation withstand voltage AC 10kV. This is a "Noise Cut Transformer" that is fully equipped with the specifications and performance of a surge-resistant transformer, achieving excellent cost performance and compactness. It also prevents steep overvoltages during lightning surges that cannot be protected by lightning arresters. This is a product registered under the old NETIS.

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Noise Cut Transformer NCT-K

Noise Cut Transformer NCT-K

It is equipped with strict lightning protection and surge prevention.

The lightning surge that intrudes into the power line and reaches one coil of the lightning protection transformer first attempts to transfer electrostatically (through capacitive coupling) to the other coil. However, if the transformer has a shielding plate, this can be effectively prevented. Following this, a slower electromagnetic transfer (through inductive coupling) occurs, and there has been no lightning protection transformer equipped with a structure to prevent this; they have relied on added capacitors and varistors, which have been insufficient to protect low-resistance information devices and precision electronics. However, a structure like the "Noise Cut Transformer," which prevents high-frequency magnetic flux from lightning surges from crossing to the secondary side, can also prevent this electromagnetic transfer. The NCT-K type takes advantage of this characteristic, featuring high voltage insulation that withstands lightning surge impacts, excellent shielding with a very low impedance triple structure, and is designed and manufactured to easily direct powerful lightning surges to the ground, almost completely preventing them from escaping to the load side, making it a "Noise Cut Transformer for lightning protection."

  • power supply
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Noise Cut Transformer NCT-R5-J2

Noise Cut Transformer NCT-R5-J2

Even problems that cannot be solved by noise filters or shielded transformers!

This product features a safe design that takes into account safety and ease of use. Not only does it shield conductive parts such as terminals and coils, but the core part is also enclosed in a case to prevent contact, ensuring greater safety than before.

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[Noise Countermeasure Example] In a logistics warehouse, sensor modules frequently malfunction.

[Noise Countermeasure Example] In a logistics warehouse, sensor modules frequently malfunction.

Is the inverter motor used in the conveyor involved? Here is an introduction to noise countermeasure examples.

In Company F's logistics warehouse, picking, packaging, packing, sorting, labeling, and other processes are carried out collectively, with each unit arranged along a conveyor. Various sensors such as proximity sensors, displacement sensors, image sensors, inkjet printers, and barcode readers are extensively used, creating an automated transport line designed for labor-saving. There have been frequent issues with these sensor modules failing over a wide range. Even after replacing the components of the modules, cases of repeated failures continued to occur... *For more details, please refer to the PDF document or feel free to contact us.*

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[Countermeasure Example] When the painting robot operates, the leakage breaker trips.

[Countermeasure Example] When the painting robot operates, the leakage breaker trips.

Leakage current detected! No wiring faults or insulation issues found; where could the cause be?

Company A, which develops and manufactures painting robots, has a customer who has decided to initially adopt one set of the new robot on a trial basis. If all goes well, there is a significant possibility of introducing five sets in the future. The equipment was delivered, and the adjustment work was progressing smoothly. It seemed that we would soon be able to hand it over to the customer. However, suddenly the customer reported, "The existing painting robot's ground fault circuit interrupter is tripping irregularly. It seems that a ground fault occurs when the new robot starts or stops. We cannot proceed with the acceptance inspection under these circumstances!" *For more details, please refer to the PDF document or feel free to contact us.*

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Basic Knowledge and Countermeasures for Noise in AC Power Systems

Basic Knowledge and Countermeasures for Noise in AC Power Systems

Introducing troubleshooting on-site using expressions that are as easy to understand as possible!

In recent years, manufacturing equipment, control devices, and inspection devices have been miniaturized, enhanced in performance, and made more labor-saving, leading to faster control signals and lower operating voltages. As a result, they tend to be more susceptible to noise, but due to the increasing complexity of control processes, it has become difficult to identify the causes of noise-related issues, making it challenging to implement noise countermeasures. This document introduces the types and characteristics of noise in AC power systems, as well as countermeasure methods, from the perspective of troubleshooting in the field, using expressions that are as easy to understand as possible. [Contents (excerpt)] ■ Types of power supply noise ■ Transient noise and continuous noise ■ Noise propagation paths and loops *For more details, please refer to the PDF document or feel free to contact us.

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Rediscovering the Charm of Noise Cut Transformers! Vol. 3 Leakage Current Countermeasures (1)

Rediscovering the Charm of Noise Cut Transformers! Vol. 3 Leakage Current Countermeasures (1)

It is also highly effective in preventing leakage current in "inverter equipment" and "servo equipment."

This booklet includes classifications of faults caused by leakage current and information on leakage current issues. The "Noise Cut Transformer," which is extremely effective for noise countermeasures and lightning induction measures, has also proven to be highly effective in addressing the recent increase in malfunctions of leakage circuit breakers and leakage current issues in "inverter equipment" and "servo equipment." 【Contents (excerpt)】 ■ Classification of faults caused by leakage current - Electric shock - Leakage fire - Malfunction of leakage circuit breakers ■ Leakage current issues - When the insulation resistance (r) of equipment decreases - Effects of the capacitance (c) between ground *For more details, please refer to the PDF document or feel free to contact us.

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Rediscovering the Charm of Noise Cut Transformers! Vol. 4 Leakage Current Countermeasures (2)

Rediscovering the Charm of Noise Cut Transformers! Vol. 4 Leakage Current Countermeasures (2)

One device can handle four loops! It can also prevent leakage currents from harmonics and high frequencies!

This booklet covers measures against leakage current and the effects on high-frequency leakage current. The "Noise Cut Transformer" can significantly suppress the passage of leakage current from DC to GHz range due to its common mode wideband high attenuation characteristics. As a result, it can prevent not only the fundamental wave components (50Hz/60Hz) but also harmonics and high-frequency leakage current. [Contents] ■ Measures against leakage current using the Noise Cut Transformer ■ The Noise Cut Transformer can handle four loops with one unit ■ Effects of the Noise Cut Transformer on high-frequency leakage current *For more details, please refer to the PDF document or feel free to contact us.

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On-site technical assistance services

On-site technical assistance services

Cooperate with the responsible parties! Prioritize resolving issues and assist in implementing noise control measures!

"On-site technical assistance" is a service that involves going to the site where troubles are occurring, confirming the current situation, and supporting the implementation of countermeasures. We have accumulated numerous case studies of solutions, and most noise issues can be resolved if there are no physical or budgetary constraints. Instead of unilaterally carrying out all the measures ourselves, we promote noise countermeasures in cooperation with the personnel who actually handle the equipment and devices causing the troubles. 【Service Details】 ■ Confirming the direction of countermeasures through noise measurement ■ Implementing noise countermeasures together with the customer *For more details, please refer to the PDF document or feel free to contact us.

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[Case Study] Electric Equipment Company F

[Case Study] Electric Equipment Company F

Real Trouble: The digital signage is not working! The source of the noise was identified as the lighting fixtures!

The electrical equipment company, Company F, was responsible for electrical work at a certain terminal station and was in charge of the installation of digital signage using LCD displays. The construction was progressing smoothly as scheduled, but the digital signage experienced unexplained malfunctions and system crashes. In response, our company investigated whether noise was observed during malfunctions or if there were any nearby devices generating noise. It was determined that the source of the noise was coming from nearby lighting fixtures, so we proposed the introduction of a "Noise Cut Transformer" for the power supply of the lighting fixtures. After the introduction, the malfunctions of the digital signage completely ceased, allowing it to display beautiful images. [Case Summary] ■ Problem: Unexplained malfunctions and system crashes of digital signage ■ Product Introduced: Noise Cut Transformer ■ Effect: Malfunctions of the digital signage completely ceased *For more details, please refer to the PDF document or feel free to contact us.

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[Case Study] Event Equipment Rental Company, Company D

[Case Study] Event Equipment Rental Company, Company D

Event a big failure? Introducing countermeasures for noise troubles occurring with LED displays!

The event equipment rental company D experienced issues with the LED display's image becoming distorted and sought our assistance to find a fundamental solution to prevent such troubles. Many of our products are designed for integration within devices or for fixed use in facilities, making them unsuitable for transport and use at various event venues. To prevent image distortion, we proposed a method of installing a "Noise Cut Transformer" to the power supply, completely blocking the intrusion of high-frequency noise, and developed a special portable version of the product exclusively for company D. After implementation, they no longer faced similar troubles. [Case Summary] ■ Problem: Image distortion on the LED display ■ Product Introduced: Special version of the noise-blocking transformer "Noise Cut Transformer" for company D ■ Effect: No longer troubled by issues *For more details, please refer to the PDF document or feel free to contact us.

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[Case Study] Pharmaceutical Manufacturer C Research Institute

[Case Study] Pharmaceutical Manufacturer C Research Institute

Unexplained stoppage of the centrifuge, what is its true nature? Here we present a case that achieved stable operation of research equipment!

At the C Research Institute, research and development of new drugs is underway, and many facilities are operational; however, there were issues occurring. It was speculated that the cause might be the deterioration of the power supply environment due to voltage fluctuations, but this remained merely a hypothesis, and we were troubled. Since there are various factors that can deteriorate the power supply environment, we first proposed the introduction of high-frequency noise countermeasure products that could be implemented at a low cost and provided a trial unit. When we attached a "Noise Cut Transformer" to the centrifuge to see if the situation would change, the issues that had occurred daily ceased entirely from the first day of implementation. Subsequently, we introduced the solution to the devices that had experienced issues, and those devices also stopped having problems, achieving stable operation of the research equipment. 【Case Summary】 ■ Problem: Unable to identify the cause of the issues ■ Proposal: High-frequency noise countermeasure products that can be implemented at a low cost ■ Introduced Product: Noise Cut Transformer ■ Result: Troubles resolved through high-frequency noise countermeasures ■ Conclusion: It is important to implement measures suitable for the factors causing disturbances that deteriorate the power supply environment. *For more details, please refer to the PDF document or feel free to contact us.

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[Case Study] POS System Development Company A

[Case Study] POS System Development Company A

Is it prohibited to use while charging? We will introduce cases where the cause was identified and the trouble was resolved!

Company A, a manufacturer of POS system development, has been focusing on the spread of tablet-type POS systems and has delivered them to many stores. However, recently, complaints have been received from newly supplied stores stating that "malfunctions occur and operations become impossible." Company A conducted investigations daily to resolve this issue, but identifying the cause proved difficult, leading to a prolonged period of uncertainty. Therefore, our company estimated that the conductive noise transmitted through the power line was entering the tablet via the charger, causing the trouble. We proposed a "Noise Cut Transformer" that could eliminate the noise from the power supply. After installation, the troubles completely disappeared, and normal operations were restored. [Case Summary] ■ Problem: Unable to operate while charging ■ Product Introduced: Noise Blocking Transformer "Noise Cut Transformer" ■ Effect: Troubles completely resolved *For more details, please refer to the PDF document or feel free to contact us.

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Noise Cut Transformer NCT-R3-J6

Noise Cut Transformer NCT-R3-J6

The latest three-phase model that improves noise reduction performance and considers safety and ease of use.

The "Noise Cut Transformer" improves noise attenuation performance, safety, and ease of use. It is a disturbance wave-blocking transformer. Focusing on the fact that various noise disturbances are caused in many environments by high-frequency noise below 150 kHz, which is not covered by major EMC standards such as the IEC 61000-4 series, we have generally enhanced the noise attenuation performance, particularly in the range of several tens to several hundred kHz. Additionally, not only the conductive parts such as terminals and coils but also the core part is enclosed in a case to prevent contact, making it safer to use.

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Noise Trouble Consultation Room

Noise Trouble Consultation Room

With over 50 years of experience, we offer consulting services for noise control suitable for your company's electromagnetic environment.

Our "Noise Trouble Consultation Room" was established in 1983 as a specialized technical department for noise trouble measures. Since then, we have received consultations on various noise issues amounting to 3,000 cases annually and have worked on their resolution. To date, we have accumulated a vast number of achievements and rich experience, receiving significant recognition from various sectors.

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Noise Cut Transformer Comprehensive Catalog for Barrier Wave Isolation Transformers

Noise Cut Transformer Comprehensive Catalog for Barrier Wave Isolation Transformers

It reliably protects information processing devices, equipment, systems, etc., from high-frequency noise interference.

The noise cut transformer is a barrier wave blocking transformer that serves as an isolation-type noise prevention device. It reliably protects information processing devices, equipment, and systems from high-frequency noise interference even in the worst electromagnetic environments. The "Noise Cut Transformer Barrier Wave Blocking Transformer Comprehensive Catalog" includes various models such as the standard model "NCT-F1," which is easy to use with both 100V and 200V input/output, the "NCT-F3 and F4" models that consider aesthetic design, and the mid-capacity "NCT-F5, F6, and F6-CE" models that pursue cost performance. [Featured Products] ○ NCT-F1 ○ NCT-F3 and F4 ○ NCT-F5, F6, and F6-CE ○ NCT-J ○ NCT-I1 and I2, among others For more details, please contact us.

  • Transformers
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Noise Cut Transformer NCT-J

Noise Cut Transformer NCT-J

Decisive effect against noise leakage from inverters! It can also be widely used for other three-phase applications.

This is a "Noise Cut Transformer" developed to prevent malfunctions and communication disturbances caused by noise associated with the rapidly increasing use of "general-purpose inverters." Of course, it can also be used for other applications. The noise generated by conventional inverters has been difficult to sufficiently mitigate using LC filters and similar methods. This is due to the presence of a significant amount of noise in the frequency range below 100 kHz, where the effectiveness of the filter diminishes, as well as issues such as leakage current when using filters and the influence of grounding conditions and the impedance of power and load devices. The NCT-J is a trump card that can solve these problems all at once.

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Noise Cut Transformer NCT-I3

Noise Cut Transformer NCT-I3

It is a low-cost model equipped with basic performance. It is very convenient when connecting loads such as measuring instruments and audio equipment via a plug.

This is a small, low-cost "Noise Cut Transformer" developed with a focus on general-purpose electronic devices for mass production and portable electronic devices. By utilizing a newly developed noise prevention mechanism (which has been patented), it effectively blocks normal mode noise across a wide frequency range that cannot be prevented by conventional isolation transformers or shielded transformers, thereby significantly improving the noise resistance of the connected devices. Additionally, its wideband common mode noise blocking capability protects the load devices from surges caused by induced lightning. In addition to standard voltage products, we can also produce units at your desired voltage through made-to-order production, allowing for replacement of the power transformer in the connected devices. Furthermore, it can eliminate the need for other noise prevention components such as power filters.

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Noise Cut Transformer NCT-G

Noise Cut Transformer NCT-G

We have received high praise from cutting-edge research institutions, starting with the field of nuclear physics.

The coil's positioning is structured in an eccentric axis and eccentric core format, making it particularly effective in high-frequency areas, and it is suitable for achieving a high level of prevention effectiveness. Compared to the NCT-F series, a higher attenuation rate can be achieved. It is designed faithfully according to the principles of noise prevention, featuring a triple shielding body and a robust, low-impedance outer casing, and is constructed with shapes and materials that shield all conductive parts, including terminals and lead wires.

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Noise Cut Transformer NCT-Z

Noise Cut Transformer NCT-Z

The core, coil, shield, case, and even the lead wires have all been manufactured in strict adherence to the theory.

This product has been developed through efforts since 1960, revealing what is theoretically the most superior, and has achieved commercialization by improving manufacturing methods and materials (with patents obtained for its structure and manufacturing methods). Its core shape and coil arrangement are of an off-axis eccentric twist, exhibiting outstanding performance from several kHz to GHz. It is mainly used in laboratories, space development, laser-related equipment, precision experimental instruments, and for measuring minute signals.

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Noise Cut Transformer NCT-R3-U2

Noise Cut Transformer NCT-R3-U2

This model has obtained certification for the insulation material UL standard "UL1446" and the structural UL standards "UL5085-1, UL5085-2."

This is a medium-capacity noise filter transformer that complies with UL standards. It is a model certified under the UL standard for insulation "UL1446" and the UL standards for construction "UL5085-1, UL5085-2." This product can be custom-made to meet your specifications.

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[Case Study] When the overseas compressor operates, a leakage current alarm is triggered.

[Case Study] When the overseas compressor operates, a leakage current alarm is triggered.

I want you to clarify the cause of the alarm sounding! Here is an introduction to noise countermeasure examples!

Since it has already been confirmed by the customer that there are no abnormalities in the equipment's insulation, we considered another possibility. Generally, high-frequency noise is generated from the compressor. Typically, some noise reduction product is installed on the compressor to prevent the high-frequency noise generated from affecting surrounding equipment. Under normal circumstances, that noise reduction product should be able to sufficiently prevent the outflow of high-frequency noise. However, when several adverse conditions overlap, that noise reduction product can sometimes become a cause of high-frequency noise dispersion. Upon confirming with the customer, it was noted that a noise reduction product is also installed on the equipment's compressor, so we focused our investigation on the surrounding area. *For more details, please refer to the PDF document or feel free to contact us.*

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[Information] This will solve it! An introduction to noise countermeasures for inverters.

[Information] This will solve it! An introduction to noise countermeasures for inverters.

An easy explanation of the generation principles and specific countermeasures regarding the theme of 'Inverter Noise Issues.'

The Electric Research Institute has accumulated numerous case studies in solving noise troubles for over half a century since its establishment. In this document, we will introduce the basics of noise countermeasures for inverters based on the knowledge we have gained so far. With the theme of "Inverter Noise Issues," we will explain the generation principles and specific countermeasures in an easy-to-understand manner. We hope this will be helpful in addressing noise problems. [Contents (Excerpt)] ■ Is that really a harmonic? ■ I want to try countermeasure products quickly without all the roundabout explanations... ■ It's amazing how easily this can be understood, like magic! ■ Let's consider the balance between effectiveness and cost! *For more details, please refer to the PDF document or feel free to contact us.

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