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  6. Ultra-fine size! IP68 micro waterproof connector THB381 series

Ultra-fine size! IP68 micro waterproof connector THB381 series

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Takachi Electric Industry THB381

last updated:Sep 25, 2025

タカチ電機工業
タカチ電機工業
  • Special site
  • Official site

High waterproof small connector with IP68 3bar/1h (waterproof at a depth of 30m for 1 hour) and IP69K (waterproof resistant to steam jet spraying).

Compact size with a diameter of 14mm and a total length of 90mm. The number of terminal poles can be selected from 2P or 3P. The wiring method is screw-type, making it easy to work with. The plug side (male) and socket side (female) are set together, allowing for easy connection and disconnection with just a push of the finger.

    Circular ConnectorsWaterproof ConnectorWiring materials
ip68

Ultra-fine size! IP68 micro waterproof connector THB381 series

ip68 防水コネクタシリーズ.png
ip68 防水コネクタシリーズ.png th381water.jpg th381-1.png th381-2.png th381-4.png th381-3.png th381-5.jpg thb387e-3.png thb387e-4.jpg th381e-3.png
  • Takachi Electric Industry Waterproof Connector Page
  • Special site - Product/service details - https://pr.mono.ipros.com/takachi-el/product/

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basic information

【Specifications】 Protection Rating: IP68 3bar/1h (Passed waterproof test equivalent to 1 hour at a depth of 30m) Protection Rating: IP69K (Subjected to steam jet of 80-100 bar/temperature 80℃±5℃ for 30 seconds repeated 5 times without harmful effects.) Operating Temperature Range: -40℃ to +125℃ Compliant with EN61984 【Ratings and Specifications】 Model Number: THB381-2P-7・THB381-2P-8 Rated Voltage: 400V AC (12V to 60V DC) Rated Current: 10A AC/DC Compatible Wire: Stranded wire 0.25mm² to 1.0mm² Impulse Withstand Voltage: 2.5kV Insertion/Removal Count: 100 times Model Number: THB381-3P-7・THB381-3P-8 Rated Voltage: 500V AC Rated Current: 10A AC Compatible Wire: Stranded wire 0.25mm² to 1.0mm² Impulse Withstand Voltage: 2.5kV Insertion/Removal Count: 100 times Housing Material: PA66GF (UL94V0)・TPE・Silicone Rubber

Price information

Standard price: ¥1,980 to ¥2,020

Price range

P1

Delivery Time

P1

※This is a regularly stocked item.

Applications/Examples of results

Outdoor LED lighting, underground electrical wiring, industrial equipment and machine tools, ships, etc., can be used for power connections and relay of motors and sensors under harsh conditions requiring waterproofing and dustproofing.

catalog(13)

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Takachi Electric Industrial Waterproof Connectors and Cable Glands Comprehensive Catalog

Takachi Electric Industrial Waterproof Connectors and Cable Glands Comprehensive Catalog

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One-touch connection type IP68 waterproof connector - Takachi Electric Industrial Co., Ltd.

One-touch connection type IP68 waterproof connector - Takachi Electric Industrial Co., Ltd.

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IP68 waterproof connector THB387 series - Takachi Electric Industrial Co., Ltd.

IP68 waterproof connector THB387 series - Takachi Electric Industrial Co., Ltd.

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Panel mount waterproof connector THB387E series - Takachi Electric Industrial Co., Ltd.

Panel mount waterproof connector THB387E series - Takachi Electric Industrial Co., Ltd.

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Panel mount micro waterproof connector THB381E series - Takachi Electric Industrial Co., Ltd.

Panel mount micro waterproof connector THB381E series - Takachi Electric Industrial Co., Ltd.

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UL Certification Waterproof Relay Connector THB387L Series - Takachi Electric Industrial Co., Ltd.

UL Certification Waterproof Relay Connector THB387L Series - Takachi Electric Industrial Co., Ltd.

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Screwless lock easy connection type IP68 waterproof connector THS389E series - Takachi Electric Industrial Co., Ltd.

Screwless lock easy connection type IP68 waterproof connector THS389E series - Takachi Electric Industrial Co., Ltd.

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Waterproof Relay Connector THB391 Series - Takachi Electric Industrial Co., Ltd.

Waterproof Relay Connector THB391 Series - Takachi Electric Industrial Co., Ltd.

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IP68 Waterproof Connectors and Waterproof Junction Box Catalog - Takachi Electric Industrial Co., Ltd.

IP68 Waterproof Connectors and Waterproof Junction Box Catalog - Takachi Electric Industrial Co., Ltd.

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One-touch connection waterproof connector THB389 series - Takachi Electric Industrial Co., Ltd.

One-touch connection waterproof connector THB389 series - Takachi Electric Industrial Co., Ltd.

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Panel mount waterproof relay connector THB391E series - Takachi Electric Industrial Co., Ltd.

Panel mount waterproof relay connector THB391E series - Takachi Electric Industrial Co., Ltd.

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Flexible Cable Gland RSP Series - Takachi Electric Industrial Co., Ltd.

Flexible Cable Gland RSP Series - Takachi Electric Industrial Co., Ltd.

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Waterproof relay connector THB390/400 series - Takachi Electric Industrial Co., Ltd.

Waterproof relay connector THB390/400 series - Takachi Electric Industrial Co., Ltd.

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Company information

タカチ電機工業

タカチ電機工業

Machine elements and parts

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Takachi is a manufacturer of cases, boxes, and racks for industrial and commercial use, including electronic devices, control equipment, and communication devices. We offer a wide range of approximately 48,000 general-purpose enclosures, including aluminum cases, metal cases, plastic cases, aluminum die-cast boxes, stainless steel boxes, waterproof boxes, battery boxes, battery holders, shelves for 19-inch racks, rack cases, rack panels, and subracks, along with custom services for additional processing to meet various customer needs.

Product/Service List (242)

The related categories of Circular Connectors

  • Electronic Components and Modules
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