Home Electrical Components & Telecoms Electrical Components Active Components

residual current operated protective device

faceboox pinterest twitter share

Negotiable Min Order Quantity Unit

Required Quantity

Place of Origin: China

Payment Terms: L/C,Others,T/T,Western Union

Production method: Negotiable

Shipping / Lead Time: Negotiable / Negotiable

Keyword: residual current operated protective device, sensitive earth fault protection, transformer protection relay, overcurrent relay

Category: Active Components , Passive Components

SEND TO SUPPLIER INQUIRY

Hangzhou Tianmu power technology Co., Ltd

Membership: BIZ

Country / Year Established: China / 1985

Business type: Manufacturer

Verified Certificate: 9

Minisite Follow Company

PRODUCT DESCRIPTION COMPANY INFORMATION Related Products

Product name	residual current operated protective device	Certification	-
Category	Active Components Passive Components	Ingredients	-
Keyword	residual current operated protective device , sensitive earth fault protection , transformer protection relay , overcurrent relay	Unit Size	-
Brand name	-	Unit Weigh	-
origin	China	Stock	-
Supply type	-	HS code	-

Product Information

1. Overview

The residual current operated circuit breaker of TZB/250(200).3N-K, which has the fuction of leakage protection, Short circuit and overload protection, it can improve performance of load switch in the low voltage power network terminal. Its reasonable structure and easy for install.

It has been recognized as the national Torch Program projects in China, and be widely used in the project of "Smart Gird" in the State Grid at China.

It conforms with the standards of IEC61009 and GB14048.2-2008.

2. Application

TZB/250(200).3N-K is applicable to a line of AC 50Hz/60Hz, rated voltage 380V for three phase four wire, neutral-point direct grounding low voltage distribution system. and rated current up to 250A. It can protect the line and motor from ground fault. It can also be used for indirect protect people from potentially deadly electrical shock hazards. It be wildly used for provide main and branch circuit protection for industrial and mining enterprises, distribution transformer.

3. Main Function

● Combined short-circuit and leakage protection into one product overcurrent

● Digital display the value of three-phase currents(Optional), voltage, leakage current and the maximum phase

● Adjust the overload protection value as the capacity of distribution transformer or the actual load (Optional)

● Automatically display the cause of cascading trip-out, fault phase and current

● Will send alerts once exceed the limit of leakage current, but not trip out when turn on the warning function

● Query-able for all previous tripping time(Optional), reasons.

● An intelligent tracking for line situation, or set operation value as period(Optional)

● Standard communication interface be builted-in for the automatic system of the power network

● Be able to identify and separate surge leakage current(Optional)

4. Model Description

TZB/□.3N-K

TZB: Residual Current operated circuit breaker.

□ : Rated current of frame

3N : three phase four wire

H : Application Code

5. Product Category

Basic/Type E: Protection for short circuit, overload and leakage.

Standard/Type D: Could adjust the current value of the overload

Surge/Type T: The current surge could be identified

Customization: Customized as clients' require

6. Techinical Data

Rated current: 160/200/250A

Rated voltage: 380V

Applicable circuit: AC 50Hz or 60Hz

Surge leakage operation value: ≤50mA

Adjustable range of load current: 20~250A

Rated residual operating current: 75/100/150/200/300/500mA

Rated breaking time: ≤0.3S ≤0.5S

Dead time of reclosing： 20-60S

Rated residual non operating current: ≥1/2 I△n

ICU: 30KA

7. Overall & Installation Dimensions

1.Configuration：

1.Screw hole2.Manual start/closing 3.The ON/OFF position 4.Switch 5.Status indicator

6.Residual operating indicator 7.Function button 8.Led display 9.Remote control interface

2.Dimension: (mm)

editorimg

B2B Trade

Price (FOB)	Negotiable	transportation	-
MOQ	Negotiable	Leadtime	Negotiable
Payment Options	L/C,Others,T/T,Western Union	Shipping time	Negotiable

Hangzhou Tianmu power technology Co., Ltd

Minisite Heart

Country / Year Established: China / 1985

Membership: BIZ

Business type: Manufacturer

President: Ding Dachang

Address: NO.118, Jiangnan Road, Lin’an, Hangzhou City, Zhejiang,China.

Product Category: Active Components,Passive Components,Switches

Year Established: 1985

No. of Total Employees: 51-100

Company introduction: Hangzhou Tianmu power technology Co., Ltd(formerly Hangzhou Lin'an Leakage Protector Manufacturer), as a share-holding enterprise specialized in research and production of low voltage device, application software. It is the vice-president unit of the Zhejiang Breaker Association, the province-level Zhejiang High-tech enterprise, and the Hangzhou patent demonstration enterprise.
In the past 30 years, we had been devoting ourselves in the undertaking of rural electrification, we provide high quality intelligent leakage protector for the construction of the state smart grid and the management of the power grid.
Company leading products: the tertiary residual current protector(the series of SDLB/TZB/TML/TCM1/TM47LE), the remote control leakage protector, comprehensive low voltage power distribution cabinet, electric meter box, and others intelligent supporting product.
We have professional technicians, and modern assembly line, and we have the conditions for scaled production. We have been keeping the tenet "quality first, technological innovation" since inception. We emphasized technical input and have been awarded over 20 national patents. Multiple techniques are the first in the domestic product, and filled the blanks of breaker industry.
The company was identified as High-tech enterprises in Zhejiang Province, took the lead in conforming to ISO9001 international quality management system certification, and we are the Research and Development Base of Zhejiang University. Our products were the first to obtain the national "3C" compulsory certification, and were awarded the titles of "Famous product in Hangzhou", "Famous brand in Hangzhou" and "national torch project". They are widely used for the accessory elements of the construction of state grid’s electricity distribution networks.
Our company take "quality assurance, integrity service" as the management idea, have set good image in the market, and distribute our product to all the Zhejiang province and sell well all over the country. We have set up many branches and agencies in different provinces and cities.and provide excellent professional after-sale services.
"Tianmu Technology" will always stick to the business ideas of Survive with Quality , Develop with Science. We are continuously seeking to develop electricity technology with colleagues in new attitude of New beginning, New opportunities, New Development. We will have full confidence and make efforts to build an efficient team to create a modern enterprise, get the domestic leading and industry-leading position.