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  5. Circular Connectors
  6. One-touch connection IP68 waterproof connector THB389 series

One-touch connection IP68 waterproof connector THB389 series

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Takachi Electric Industrial THB389 Series

last updated:Jun 13, 2025

タカチ電機工業
タカチ電機工業
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Easily connect and disconnect with just a push of your finger! It features a one-touch connection system and a highly waterproof IP68 connector.

This is a waterproof type of relay connector that consists of a plug side (male) and a socket side (female). It can be easily connected and disconnected by simply pressing with your finger, which reduces working time. The number of terminals can be selected from 4P or 5P. The wiring method is screw-type, and no soldering or special tools are required. A screwdriver with a tip width of 3 mm is recommended. The terminal screws may be tight and difficult to loosen, so please use a screwdriver with a handle. It can be used for relay connections of power, motors, and sensors in outdoor LED lighting, underground wiring, machine tools, plants, ships, and agriculture.

    Circular ConnectorsWiring materialsconnector
thb389-1.png

One-touch connection IP68 waterproof connector THB389 series

thb389-1.png
thb389-1.png thb389-2.png thb389-3.png thb389-4.png thb389-5.png
  • Takachi Electric Industrial THB389 Series
  • Special site - Product/service details - https://pr.mono.ipros.com/takachi-el/product/

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basic information

【Specifications】 Protection Rating: IP68 0.5bar/1h (Passed waterproof test at a depth of 5m for 1 hour) Operating Temperature Range: -40℃ to +100℃ Compatible Cable Diameter: Φ7 to Φ13.5 Compliant with EN61984 【Ratings and Specifications】 Rated Voltage: AC500V Rated Current: 17.5A Compatible Wire: Stranded wire 0.25㎟ to 1.5㎟ Impulse Withstand Voltage: 2.5kV

Price information

THB389-4P (4-pin terminal) : Standard price \2,470 yen THB389-5P (5-pin terminal) : Standard price \2,760 yen

Price range

P1

Delivery Time

P1

※This is a regularly stocked item.

Applications/Examples of results

Outdoor LED lighting, underground wiring, construction machinery, plants, ships, and relay connections for power, motors, and sensors in agriculture.

Detailed information

  • thb389-2.png

    Easily connect and disconnect with just a push of a finger.

  • thb389-3.png

    Product disassembly image

  • thb389-4.png

    Fixed holder for panel mount / pole mount

  • thb389-5.png

    Cover for plug/socket

catalog(8)

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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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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 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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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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IP68 waterproof connector THB405, 406 series - Takachi Electric Industrial Co., Ltd.

IP68 waterproof connector THB405, 406 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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Takachi Electric Industry Terminal Boxes, Waterproof Connectors, Cable Glands Comprehensive Catalog

Takachi Electric Industry Terminal Boxes, Waterproof Connectors, Cable Glands Comprehensive Catalog

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One-touch connection panel mount waterproof connector THB389E series - Takachi Electric Industrial Co., Ltd.

One-touch connection panel mount waterproof connector THB389E 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.

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