Low-pressure round window type current transformer CTC-NR series
CTC-NR Series / Hiraï Electric Meter Co., Ltd.
This is a design-registered product for low-voltage circuit round window-type current transformers.
Starting from a minimum of 60A, the lineup reduces the workload of wire winding. It uses a heat-resistant ABS resin case for the exterior, making it lightweight and easy to handle. This series is primarily manufactured in compliance with JIS C 1731-1, but products can also be made according to overseas standards such as IEC upon request. Production locations: Made in China / Korea / Japan (Kyoto) Design registration number: 1402960
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basic information
【Design Philosophy】 Not "design to cut costs," but "high reliability based on safety." 【Outline Structure】 (1) The wires used are selected to consider temperature rise, adopting thick wires of full rating as much as possible. (2) The terminal part is fixed by epoxy mold injection to prevent disconnection and other issues. (3) The exterior is made of ABS, and the insulation is filled with epoxy resin. 【Basic Specifications】 Rated secondary current: 5A or 1A Rated load: 2.5VA or 5VA or 15VA or 40VA Compliance standard: JIS C 1731-1 Accuracy class: 1.0 Insulation level: 1.15kV / 4kV / ---kV
Price range
P1
Delivery Time
P3
※When out of stock, approximately 2.0 months for shipment from the Kyoto factory.
Applications/Examples of results
It is a measuring current transformer. General cubicles / distribution boards, etc.
Line up（4）
| Model number | overview |
|---|---|
| CTC－N2.5R | Rated load: 2.5VA Rated primary current: 100A 120A 150A 200A 250A |
| CTC－N5R | Rated load: 5VA Rated primary current: 60A 75A 100A 120A 150A 160A 180A 200A 240A 250A 300A 400A 500A 600A 750A |
| CTC－N15R | Rated load: 15VA Rated primary current: 100A 120A 150A 160A 180A 200A 240A 250A 300A 400A 500A 600A 750A |
| CTC－N40R | Rated load: 40VA Rated primary current: 150A 160A 180A 200A 240A 250A 300A 400A 500A 600A 750A |
catalog（2）
Download All Catalogs![Low Voltage Transformer Maximum Voltage Circuit up to 1.15kV [Low Voltage Current Transformer Standard Catalog]](https://image.mono.ipros.com/public/catalog/image_generated/01/7d4/285669/285669_IPROS8149434139930413056_1.jpg?w=120&h=170)
News about this product（1）
Company information
Our company's history began on February 11, 1921, when our founder, Daisuke Hirai, established a sole proprietorship in Osaka. During World War II, we relocated to Kyoto at the request of Shimadzu Corporation, which was a military supply company for the country. In February 1952, after the war, we established the current company, built and relocated our headquarters and factory in Kyoto, and completed the technology for epoxy molded transformers. In August 2019, we opened a new production base called "Reiwa Keihanna Business Office." In 2020, we obtained ISO 9001 certification, and in February 2021, we celebrated our 100th anniversary by receiving the "66th Shibusawa Award" sponsored by the Japan Electric Association, marking a significant new step forward. Furthermore, without resting on our laurels, we are committed to continuing the fusion of the technologies and innovations we have cultivated over the years to create products that transcend traditional business fields. As a company, we aim to contribute to society by becoming an enterprise capable of supporting various "infrastructures" surrounding society and nurturing the technology and human resources that will carry "Japan's future."