Basic Info.
Breaking Capacity
Low Voltage Circuit Breakers
Speed
Normal Type Circuit Breaker
Arc-extinguishing Medium
Air
Function
Conventional Circuit Breaker
Certification
ISO9001-2000, CE, CB, CCC
Rated Current
100A/250A/400A
Rated Insulation Voltage
690V
Contact Point
Copper, Silver Alloy, Silver
Specification
Frame Size 100
Product Description
Gret electric
Gret electric Co.,Ltd is is Chinese manufacturing company headquartered in Wenzhou City,Zhejiang Province with branch offices in different parts of China and abroad.It was founded in 1989 as Zhejiang Gelun Electric Company and later renamed Gret Electric Co.,Ltd by the board of directors.The company currenty owns four factories for manufacturing and one high-rise office building for R&D.Today it has more than 1000employs,among them engineers and technicians account for about 20% of total staff.
The company specializes in R&D,manufacture and sales of various distribution electrical appliances and industrial control advices.The most popular products are frame circuit breakers,molded case circuit breakers,residual current operated circuit breakers(leakage circuit breakers),dual power supply automatic transfer switchs and frequency convert etc.
Over the years,the company has passed a great number of industrial certificates,such as ISO9001 quality management system certification,ISO14001 environmental managerment system certification,and OHSAS18001 Occuptional Health and Safety Management System Certification,as well as the China Compulsory Certification(also known as 3C in short).The company has never stopped innovating since day one,leading the industry with many unique certified patents and designs.We'are focusing on our positioning along the value chain of electrification.This is where our core business lies.From power generation to power transmission,power distribution and smart grid to the efficient application of electrical energy-in every one of these interrelated fields,electrification,automation and digitalization are the key business drivers.No matter how much we grow,we always keep ourseives grounded in our deep-rooted purpose values,and principles,We've done it for over 11,000days,and we don't plan on stopping anytime soon.
DescriptionGDM3L series residual current operated circuit breaker (abbreviated as residual circuit breaker) is a patented product developed by our company in recent years. It is an integrated, multifunctional, overcurrent and overcurrent adjustable residual circuit breaker. It is suitable for three-phase four-wire neutral low-voltage power grid direct-grounding (TT grounding system) is used as residual protection and can also protect the ground fault,overcurrent,short circuit of the line or electrical equipment
Characteristic1.
Multiple functions The general type has protection functions for residual current,phase default overvoltage,undervoltage, overcurrent and short circuit. There are also practical functions such as automatic reclosing,constant cycle voltage,current,residual current display,operating status indication etc.
2.
Strong anti-interference ability This residual circuit breaker adopts advanced and lightning protection technology in hardware and software programs which has better lightning protection effect than similar products: and can resist various peak interferences, stable and reliable operation
3.
High breaking This residual circuit breaker is designed with the structure of GDM1 plastic case circuit breaker, which has the characteristics of compact structure and strong breaking capacity
4.
Record available check When the device is operated, digital turns display real-time load current, voltage and residual current of each phase; display (lock) action current value when tripping and display the reason of tripping with indicator light. Provide convenience for finding faults. You can also check historical trip causes and times
5.
Intelligent The intelligent control circuit composed of a single-chip microprocessor with high accuracy and precision; the overcurrent protection is electronically settable, and the overcurrent setting value can be adjusted according to the actual site
6.
Communicable The communicable product is connected with the GPR5 communication module, and can send a message of the trip status to the manager's mobile phone.
Technical parametre| Specifications | 100A Shell class current(A) | 250A Shell class current(A) | 400A Shell class current(A) |
| Rated current(A) | 40A/63A/80A/100 available set up | 100A/160A/200A/250 available set up | 250A/315A/350A/400 available set up |
| Frequency | 50Hz |
Rated residual action current
(A) | 0.075/0.15/0.3/0.5 avaialable set up | 0.075/0.15/0.3/0.5 avaialable set up | 0.1/0.2/0.3/0.5 avaialable set up |
| Rated residual no-action current(A) | 0.037/0.075/0.15/0.25 | 0.037/0.075/0.15/0.25 | 0.05/0.1/0.15/0.25 |
| Rated breaking time | <0.2s/<0.5s available set up |
| Delay reclosing time | 20s-60s automatically reclosing for one times |
| Aux source undervoltage action value | Single-phase 175V±5% |
| Aux source overvoltage action value | Single-phase 265V±5% |
Phase defauly
protection | The device action when any one phase of A.B.C phase defaut happened. |
| Rated Aux voltage | 400V |
| Action characteristic classification | Ac |
| Usage type | A(Delay,Instaneous protection) |
| Shell-class rated current(A) | Limit short-circuit breaking capacity |
| Current kA | VoltagekA | Power factor | Test procedure |
| 100A | 30 | 1.05Uh | 0.3 | O-t-CO |
| 250A | 30 | 1.05Uh | 0.3 | O-t-CO |
| 400A | 30 | 1.05Uh | 0.3 | O-t-CO |
• Short Circuit Protection
• Under-voltage Protection
• Power Distribution Protection
• Motor ProtectionProduct picsCompany profileMore product
My Card
Address:
161 Wei 12th Road, Economic Development Zone, Yueqing City, Zhejiang Province, Wenzhou, Zhejiang, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Electrical & Electronics
Management System Certification:
ISO 9001, ISO 14001, OHSAS/ OHSMS 18001
Company Introduction:
GRET Electric is a Manucaturing company headquartered in Wenzhou City, Zhejiang Province with four different factories in different cities of China. It was founded in 1989 as Zhejiang Gelun Electric Co., Ltd. And later renamed Gret Electric Co., Ltd., annual turnover more than 6 million dollars.
In the past 29 years, GRET was focusing on the low voltage electrical and automation control project research, development and puduction. The products range including MCB, MCCB, RCCB, Contactors, ATS, Surge protector, Fuse disconnector, Isolator, Frequency Driver and other related accessories and components.
GRET products are certified to required industry standards, with approvals ISO, CCC, CECB, TUV, SAA, SEMKO.
Today, GRET sales covers 20 countries, with more than 300 customers purchasing from us. There is no doubt we will promote our products to more countries.
With the deep-rooted principle "Switch On To Safety", we are trying best to produce best quality with most competitive products. So, Outfitted with sophisticated manufacturing capacity and outstanding quality management system, GRET is your optimal OEM/ODM supplier.
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