Fast delivery for Miniature Circuit Breaker FTB1 to Cyprus Manufacturers

Overview:



Technical data

Product illustration

Tripping characteristic

Exterior and dimensions

Related video

To meet the customers' over-expected satisfaction , we have our strong team to provide our best overall service which includes marketing, sales, designing, production, quality controlling, packing, warehousing and logistics for Fast delivery for Miniature Circuit Breaker FTB1 to Cyprus Manufacturers, We look forward to supplying you with our products in the near future, and you will find our quotation is very reasonable and the quality of our products is very excellent!


Product illustration:

20170427170914

 

Accessories
 Auxiliary contact Auxiliary contact and alarm contact  Shunt release Shunt release and auxiliary contact  Under voltage release  Over voltage release  Busbar mounting base  Motor-driven operation
OF OF+SD MX MX+OF MQ MG MP CD

 

Product Features

Under normal condition, the working principle of main thermostic bimetal in FTB1 SMCB is the same to the usual circuit breakers, it is used for overload tripping. when there is a short-circuit on a branch circuit breaker, the magnet core in the main current path would tilt the moving contact away from the fixed contact to break the circuit,thus producing the electric arc, and limiting the short-circuit current effectively.

In the maintime,the short-circuit current flow to the supplementary current path, a selective resistor and a selective bimetal are connected in series of the supplementary curret path, limiting the short-circuit current to a few hundred amps.

When the downstream circuit-breaker has tripped because of a short-circuit, the contact tips reclose automatically through a simple spring-type system,ensuring other unaffected branch circuits continue in operation.If a short-circuit occur between the FTB1 and the downstream circuit-breaker, another bimetal release enables short-time delayed tripping,ensuring the contact tips remain in the open position enabling isolating.

a0170427173357

Scope of use

It is primarily used in critical installations,for instance, office buiding, laboratory, theatre, museum, hotel, shopping mall, telecommunication, coal mine and shipping, chemical industry and metallurgy, industrial plants,medical and health care, bank and securities exchange,airport, underground express way, military establishment and similar loads that requires non-interrupted and reliable power supply.

Technical Data

Model FTB1-100
Number of poles  ada
Rated frequency: AC 50(60)Hz
Rated voltage (V) AC 230/400
Rated current (A) 20, 25, 32, 40, 50, 63,80,100
Breaking capacity  Icn/Ics(KA) LH 15/7.525/12.5
Rated impulse withstand voltage (kV) 6
Tripping characteristic E
Electric arc distance(mm) ≤35
Mechanical life 10,000
Insulation function yes
Installation  
Pollution degree
Ambient temperature (°C) -5°C ~ +40°C
Altitude (m) Not higher than 2000m
Installation Mounted on DIN rail, busbar adaptor or by screw terminal
Connection capacity: Connection to cables,busbars or terminals
Weight (g) 313      617       932       1241

 

 Trippping behavior

 

Test Tripping characteristic Conventional non-tripping current Conventional tripping current Initial status Tripping time
a b E E 1.05In 1.2In Cold statusRight after test 1 ≧2h﹤2h
Test Tripping characteristic Delayed tripping current short-time delayed tripping current Initial status Tripping time
c E 5In   Cold status 0.05s<t<5s(In≦32A)   0.05s<t<10s(In>32A)
d E   6.25In Cold status 0.01s﹤t﹤0.3s

Coordination table

The FTB1 series operates selectively with respect to the combination with MCBs

MCB(B,C characteristic) FTB1(Characteristic E)
In A 20 25 32 40 50 63 80 100
10 T T T T T T T T
16 T T T T T T T
20 T T T T T T
25 T T T T T
32 T T T T
40 T T T
50 T T
63 T

Note: T represents total selectivity

Applications

170428111611

Tripping characteristic

adfa (3)

Exterior and dimensions

adfa (4)





Generally a current transformer is used mainly for measuring current and protection of the system which includes EHT and HT
feeders or Power transformers in a substation or generating stations.

Current transformers are used for measuring current in the circuit system in such a way that it merely reduces a
large current flowing through its primary to a smaller current which can be read by an ammeter connected to its secondary.

it electrically isolates the secondary circuit from the primary high-voltage circuit allowing measurements to be made,
or protective devices to operate, safely.

The primary circuit is largely unaffected by the insertion of the CT.
The rated secondary current is commonly standardized at 1 or 5 amperes.
For example, a 4000:5 CT would provide an output current of 5 amperes when the primary was passing 4000 amperes.
The secondary winding can be single ratio or multi ratio, with five taps being common for multi ratio CTs.
The load, or burden, of the CT should be of low resistance.

In normal case a CT consists of a single core in High voltage side and 4 cores in low voltage side.

Representation of windings of the secondary of the Ct is given as

1S1(R) 1S1(Y) 1S1(B) 1S2(RYB-N) cores of each phases(R,Y,B) forms C core

2S1(R) 2S1(Y) 2S1(B) 2S2(RYB-N) cores of each phases(R,Y,B) forms D core

3S1(R) 3S1(Y) 3S1(B) 3S2(RYB-N) cores of each phases(R,Y,B) forms A core

In the case of EHT feeders three secondary cores are used and the 4th one is taken as a spare and shorted.
Three cores are categorized as
1) A core – for Distance protection
2) D core – for metering
3) C core – for back up protection (over-current & earth fault)

In the case of power transformers 4 cores are used as follows
1) A core – for Differential protection
2) D core – for metering
3) C core – for back up protection (over-current & earth fault)
4) AB core – for restricted earth fault protection



How to Check a Fuse by Testing it with a Multimeter presented by Katie Nyberg for Galco TV.

Buy the items featured in this video at 800-337-1720 or visit: http://www.galco.com
Triplett 9055 Series is the featured DMM:http://www.galco.com/buy/Triplett/9055
Buy Digital Multimeters here! http://www.galco.com/shop/Digital-Mul…
Buy Fuses here! http://www.galco.com/get/Fuses?source…

Sign up for Galco’s newsletter that features our newest products, our can’t-miss deals, our best videos, and total access to Galco’s electronics expertise: http://www.galco.com/email/

Connect with us!

https://plus.google.com/+GalcoIndustrial

https://www.facebook.com/GalcoIndustrial

https://twitter.com/GalcoIndustrial

https://www.linkedin.com/company/galc…

Don’t forget to like and comment on this video, and subscribe to our channel!
Galco is a Factory Authorized Stocking Distributor for Over 150 Brands of Industrial Electrical & Electronic Automation, Controls and Component Products; On-Site and Send-In Repair Services for Industrial Control & Automation Products for Over 2,000 Brands; Engineered Systems Integration, Retrofits & Upgrades for Variable Speed Drives, CNC, PLC Systems, Dynamometers & Test Stand Applications. Visit us online at http:// www.galco.com or call us at 800-337-1720.

http://www.galco.com/safety

With respect to the usage, installation or assembly of any products described in this video, Galco Industrial Electronics, Inc., a Michigan corporation, encourages you to follow the requirements and/or guidelines of: i) the Occupational Safety and Health Act of 1970, Public Law 91-596, as amended, and all laws, rules and regulations implemented in relation thereto; ii) the National Electric Code®; and iii) NFPA 70E®. Any installation, assembly or work described in this video should be performed by a qualified licensed electrician.

GTV, Galco, galco.com, Galco Industrial Electronics, and Galco Industrial Electronics, Inc. are registered and/or pending registered trademarks under the U.S. Patent and Trademark Office, assumed names, registered domain names, and/or trade names of Galco Industrial Electronics, Inc., a Michigan corporation.

LEGAL DISCLAIMER:
While we have made every attempt to ensure that the information provided is accurate and has been obtained from reliable sources, Galco is not responsible for any errors or omissions, or for the results obtained from the use of this information. All information is provided “as is”, with no guarantee of completeness, accuracy, timeliness or of the results obtained from the use of this information, and without warranty of any kind, express or implied, including, but not limited to warranties of performance, merchantability and fitness for a particular purpose. At all times you should defer to the instructions and safety guidelines issued by the manufacturer. In no event will Galco, its agents or employees thereof be liable to you or anyone else for any decision made or action taken in reliance on the information provided to you or for any consequential, special or similar damages, even if advised of the possibility of such damages.

Related Products

WhatsApp Online Chat !