What is the maximum altitude for operation?

The altitude should not be higher than 2000m.

What protection functions does it offer?

It protects AC three-phase asynchronous motors against overload and open phase.

3ua Series Relay Thermal Overload Relay

Name: 3ua Series Relay Thermal Overload Relay
Brand: GAONENGGELE ELECTRICAL SHARES CO.,LTD.
SKU: 623651054

Zhejiang, ChinaGAONENGGELE ELECTRICAL SHARES CO.,LTD.

US$2.63-2.65

1,000 Pieces

Sample price:US$2.63/piece.Request sample

Product profile

Customization

Available

Theory

Thermal Relay

Usage

Household Appliances Relay, Communication Relay

Phase

Electricity Type

Number of Pole

Load

High Power Relay

Protective Characteristics

Open Relay

Action Principle

Electronic Type

Size

Miniature

Type

AC Contactors

Transport Package

Carton

Specification

KNR8(3UA) Series

Trademark

korlen

Origin

Wenzhou; Zhejiang; China

HS Code

8536419000

Production Capacity

1000000PCS/Month

Key features

Wide Current Range: Rated current covers 0.1A to 400A for versatile motor protection needs.

High Voltage Rating: Supports rated voltage up to 690V-1000V for demanding applications.

Comprehensive Protection: Protects AC three-phase motors against overload and open phase faults.

Adjustable Settings: Features continuous adjustable setting current device for precise calibration.

Multiple Reset Options: Offers both manual hand operation and automatic reset capabilities.

Standard Compliance: Conforms to IEC947-4, VDE0660, and GB14048.4 international standards.

Flexible Installation: Can be installed independently or plugged directly into AC contactors.

Company profile

Experienced TeamSelf-brandedPatents AwardedExhibition Experience

GAONENGGELE ELECTRICAL SHARES CO.,LTD.

Zhejiang, China

Business Type: Manufacturer/Factory, OtherExport Year: 2015-03-11Average Response Time: ≤9.76h

AI-Powered supplier vetting

SummaryKorlen Electric Appliances demonstrates established manufacturing and customization capabilities, operating 9 production lines and offering automated and semi-automated assembly and welding resources. It holds multiple management-system certifications, including ISO 9001, ISO 14001, and ISO 45001-related certification, as well as CCC and BSCI certifications. The supplier reports documented procedures for service capability, corrective actions, complaint handling, quality assurance, and raw-material traceability. It offers OEM and ODM services, flexible design customization, SDK availability, and has received one national science and technology progress award. However, it reports no overseas warehouse, showroom, agent, or branch, serves zero overseas countries according to the provided data, and had no new products in the past year. Customer evidence includes OEM service for popular brands and an 80%–100% repeat-buyer preference, but no Fortune 500 collaboration.

CertificationsKorlen reports ISO 9000/9001, ISO 14000/14001, OHSAS/OHSMS 18001, ISO 45001:2018, CCC, and BSCI certifications or capabilities. This provides explicit evidence of broad management-system, product-compliance, and social-responsibility certification coverage.

After-Sales capabilityThe supplier has written and followed procedures for service capability, corrective and preventive actions, and customer complaints, and reports quality assurance and raw-material traceability. However, it has no overseas warehouse, showroom, agent, or branch, so its documented service processes are stronger than its overseas physical-service coverage.

R&D capabilityThe supplier offers ODM, flexible customization, SDK availability, and reports one national science and technology progress award. Conversely, it states that no new products were developed in the past year and has only 2 R&D engineers, so the evidence supports some technical capability but not consistently strong recent innovation output.

Production capacityKorlen operates 9 production lines and lists fully automated and semi-automatic assembly and welding lines, laboratory equipment, cycle testing, environmental testing, and X-ray fluorescence analysis. It also reports lead times within 15 workdays in both peak and off-season, supporting a positive assessment of production infrastructure and stated delivery capacity.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, and flexible customization through both design and R&D services. This is direct evidence of broad customization capability.

Client casesThe supplier reports participation in the MATELEC offline trade show, OEM service for popular brands, and an 80%–100% preference among repeat buyers. It has not collaborated with Fortune 500 companies, and the provided data does not identify specific customer names or detailed project cases.