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GB/T 20344-2025Tractors and machinery for agriculture and forestry - Power transmission connectors (English PDF)

农林拖拉机和机械　电力传输连接器

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

October 31, 2025

Implementation date

May 1, 2026

Scope

GB/T 20344-2025 is the English-translated version of 农林拖拉机和机械　电力传输连接器.

GB/T 20344-2025 is the Chinese standard "Tractors and machinery for agriculture and forestry - Power transmission connectors".

Its scope clause reads: This document defines the terminology and definitions for power transmission connectors used in agricultural and forestry tractors and machinery, and specifies their technical requirements and inspection rules.

Marking, packaging, transportation and storage, and the corresponding test methods are described. This document applies to power transmission connectors (hereinafter referred to as "connectors") used in agricultural and forestry tractors and machinery. Its clauses include terms and definitions.

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Document preview — GB/T 20344-2025

National Standard of the People's Republic of China

ICS: 65.060.01
Classification: B 90
Replacing: GB/T 20344-2006

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Foreword
3.1, 3.3~3.6);
1 Scope

1 Scope

This document defines the terminology and definitions for power transmission connectors used in agricultural and forestry tractors and machinery, and specifies their technical requirements and inspection rules.

Marking, packaging, transportation and storage, and the corresponding test methods are described.

This document applies to power transmission connectors (hereinafter referred to as "connectors") used in agricultural and forestry tractors and machinery.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 2423.7-2018 Environmental Testing – Part 2.Test Methods – Test Ec. Impact caused by rough handling (mainly used for...)

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GB/T 4208 Degrees of protection provided by enclosures (IP code)

GB/T 5053.2 Electrical connector between tractor and trailer for road vehicles - 7-pin 12V standard type (12N)

GB/T 5053.3-2006 Definition, Test Methods and Requirements for Electrical Connectors Between Tractors and Trailers of Road Vehicles

GB/T 20234.1-2023 Connecting devices for conductive charging of electric vehicles - Part 1.General requirements

GB/T 20234.2-2015 Connecting devices for conductive charging of electric vehicles - Part 2.AC charging interfaces

GB/T 20234.3-2023 Connecting devices for conductive charging of electric vehicles - Part 3.DC charging interface

GB/T 37133-2025 High-voltage connection system for electric vehicles

JB/T 6697-2023 Basic Technical Specifications for Agricultural and Forestry Tractors and Electrical Equipment

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 Contact

A conductive element on a connector that can form a circuit with a corresponding conductive element.

3.2 malecontact

A contact that enables circuit conduction by contacting its outer surface with a socket-type contact.

3.3 female contact jack

A contact that enables circuit conduction by having its inner surface contact a plug-in contact.

3.4 socket

A connector with a socket that is installed on a tractor and used in conjunction with a plug. […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 24 pages — is available in the English PDF.

Referenced standards

Normative references

Editions of GB/T 20344

Edition	Title	Revision	Status
GB/T 20344-2025	Tractors and machinery for agricultural and forestry - Power transmission connectors	current edition	Current
GB/T 20344-2006	Agricultural tractors and machinery -- Electrical power transmission connectors	previous edition	In force

This page sells the current edition, GB/T 20344-2025. Earlier editions are listed for reference only.

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