RS21 4A 500V Fast-Acting Screw-Type Fuse

Name: RS21 4A 500V Fast-Acting Screw-Type Fuse
Brand: Zhejiang Zhenghao Fuse Co., Ltd.
SKU: 2304413725

Zhejiang, ChinaZhejiang Zhenghao Fuse Co., Ltd.

US$0.40

20 Pieces

Sample price:US$0.50/piece.Request sample

Product profile

Customization

Available

Breaking Capacity

High

Type

Current Fuse

Model NO.

RS21

Usage

Low Voltage

Shape

Spiral

Fusing Speed

Fusing Device

Indicator

Standard

CCC

Rated Current

Rated Voltage

500V AC

Application

Semiconductor and Rectifier Equipment Electrical E

History

40+Year

Transport Package

CTN

Specification

15*7*10

Trademark

ZHENGRONG

Origin

Zhejiang, China

HS Code

8536100000

Production Capacity

50000 Pieces/Month

Key features

Fast-Acting Protection: Delivers precise and rapid response to overloads and short circuits for critical equipment safety.

CCC & GB13539 Certified: Complies with GB13539 standard and holds CCC certification (A029301) for verified quality.

Ceramic Insulation Shell: Features a durable ceramic shell for superior electrical insulation and safety.

Screw-Type Installation: Designed with E27 base for easy and secure screw-type mounting in various systems.

Wide Application Scope: Ideal for semiconductors, UPS, inverters, industrial control, and new energy systems.

OEM & ODM Services: Offers flexible customization including samples, designs, and full customization options.

100% Quality Inspection: Undergoes strict visual and functional inspection before shipment for reliability.

40+ Years Experience: Backed by over four decades of manufacturing expertise and industry history.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceSelf-brandedPatents Awarded

Zhejiang Zhenghao Fuse Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 3 Years CertifiedNearest Port: NingboAverage Response Time: ≤6.67h

AI-Powered supplier vetting

SummaryThe supplier offers extensive customization capabilities and participates in trade shows but lacks valid manufacturing contracts and overseas facilities. They have ISO9001:2015 certification but no collaboration with Fortune 500 companies. Financial records show zero operating revenue and significant challenges in financial credibility. Despite having procedures for quality control and corrective actions, there is a lack of written records. The supplier's innovation capability is questionable due to the absence of new products and limited R&D resources.

CertificationsThe supplier holds ISO9001:2015 and CCC certifications.

Financial creditFinancial data shows zero operating revenue and costs, indicating financial challenges.

R&D capabilityThe supplier has no new products in the past year and only one R&D engineer, indicating limited innovation capability.

Customization capabilityOffers extensive customization options including full and minor customization.

Product Q&A

Q:1.Who are we?

We are located in Zhejiang, China. Since our establishment in 1985, our products have been sold to the domestic market (35.00%), Western Europe (10.00%), South America (8.00%), Africa (8.00%), East Asia (8.00%), Eastern Europe (8.00%), Central America (3.00%), South Asia (5.00%), Southeast Asia (5.00%), Oceania (3.00%), Northern Europe (2.00%), Middle East (11%), and Southern Europe (2%). The company has about 120 people in total.

Q:2.How can we guarantee quality?

Always a pre-production sample before mass production; Always final Inspection before shipment;

Q:3.What can you buy from us?

Fuse, Fuse Holder, Fuse Link, Fuse Switch, Screw Type Fuse (full range of fuses)

Q:4.Why should you buy from us not from other suppliers?

Zhejiang Zhenghao Fuse Electrical Appliance Co., Ltd. is a professional manufacturer of low voltage. We produce different series of fuses, such as NT (RT16) fuses. NH fuse. Bolt type fuse. Fuse isolation switch. High voltage fuses, etc.

Q:5.What payment methods do you accept

Accepted Payment Currency:USD,CNY; Accepted Payment Type: T/T,L/C,Western Union,Cash,Escrow; Language Spoken:English,Chinese