RESOURCES CENTER

YHKJ Product Resources & Technical Support

Download product catalogs, datasheets, wiring diagrams, certificates and selection guides for low voltage electrical and industrial control components.

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24h

Fast quotation, product selection and technical document support.

01

Resource Categories / 资料分类

Choose the resource you need. If you cannot find the right file, send us your product model or application.

CAT

Catalog Download

产品目录下载

Download YHKJ product catalog and product range overview.

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PDF

Datasheets

产品规格书

Find technical specifications, model information and datasheet files.

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WIR

Wiring Diagrams

接线图

View wiring diagrams and installation reference for selected products.

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CER

Certificates

认证证书

Check CE, RoHS, CB and quality-related certificates when available.

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FAQ

FAQ

常见问题

Learn about MOQ, samples, lead time, packaging, payment and shipping.

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GUI

Selection Guides

选型指南

Read product selection guides for relays, controllers, sensors and switches.

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02

Popular Technical Topics / 热门技术资料

These topics can help buyers choose suitable models before sending RFQ.

How to choose a time relay?

Confirm voltage, timing range, output contact, mounting method and application.

How to choose a temperature controller?

Confirm input type, output type, control method, panel size and temperature range.

How to choose an alarm light?

Confirm voltage, color, sound type, mounting method, IP rating and working environment.

How to choose circuit protection products?

Confirm rated current, poles, breaking capacity, protection type and required standard.

NEED HELP?

Cannot find the right datasheet or catalog?

Send us your product model, quantity, country and application. Our team will provide quotation, datasheet and selection support.

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03

Resources FAQ / 资料中心常见问题

Yes. You can submit your email and country on the Catalog Download page, then download or request the latest product catalog.
Yes. Please send product model, voltage, current, quantity and target market. We will provide matching datasheets when available.
For selected relays, controllers, sensors and electrical components, we can provide wiring diagrams or installation references.
For OEM or distributor customers, we can discuss logo, packaging and document customization based on project requirements.