THB387 SERIES Plug-Type Waterproof Relay Connector

THB387 SERIES Plug-Type Waterproof Relay Connector

Used for wiring in conditions requiring waterproofing,
including power for industrial equipment and manufacturing machinery, sensor relays, outdoor LED lighting, underground wiring, and ships, etc.

 ● Waterproof relay connector set comprising a plug (male) and socket (female).
 ● Wire connection is performed using screws, making the work much easier. Different numbers of terminal electrodes can be selected; choose from 3P/4P/5P.
 ● For safety purposes, install the connector so that the primary side (socket side) is female and the secondary side (plug side) is male.

We offer the following 3 products to fit the number of electrodes (number of cores).
(1) THB387-3P (Number of terminal electrodes 3P)
(2) THB387-4P (Number of terminal electrodes 4P)
(3) THB387-5P (Number of terminal electrodes 5P)

 ● Rated voltage: 450 VAC
 ● Rated current: 17.5 A
 ● Applicable wire type: stranded wire 0.5mm2–4.0mm2 ((1) (2)) / stranded wire 0.5mm2~1.5mm2 ((3))

Part Number

Configured Part Number is shown.


Part Number
Part NumberVolume DiscountDays to Ship RoHSConnector series initials

8 Days or more

6S T U


  1. 1

Basic Information

Connector shape Circular Type S T U THB387 Applicable pin/contact Others
Number of cores 4 Application Cable connection Allowable Current(A) 17.5
Allowable Voltage(V) AC450 Wire connection method Fastening screw Connection direction Straight
IP Rating Present Representative standards CE Product name Plug-Type Waterproof Relay Connector
Conforming cable external shape (Φ)(mm) 7 to 12 Terminal block 4P Protection grade IP68 equivalent

Please check the type/dimensions/specifications of the part THB387-4P in the THB387 SERIES Plug-Type Waterproof Relay Connector series.

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