16 Years manufacturer Miniature Circuit Breaker FTB1 to Barbados Manufacturer

Overview:



Technical data

Product illustration

Tripping characteristic

Exterior and dimensions

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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.

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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

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Tripping characteristic

adfa (3)

Exterior and dimensions

adfa (4)





You are looking at the following.

GE AKRU-6D-50 Circuit Breaker
1600 Amp Frame
600 Volt
3 Pole
Manually Operated
Drawout
50/60HZ

Click here to view our GE AKRU Web-Page: http://www.naswgr.com/Circuit_Breaker_Pages/General_Electric/General_Electric_Home.html

Available Cleaned & Tested or Class A Reconditioned
Cleaned & Tested or Class A Reconditioned- Breaker is Meggered, Ductored and Tested on Our High Current Primary Injection Test Set with a Typed Report. NAS inspects all options for any missing, broken or defective parts. Please email sales@naswgr.com for a quote to receive your pricing options and more information on our World Class Services.

Available AS-IS (Inspected/Operated Suitable for Reconditioning or Parts)

Breaker must ship via freight.

Call 800-909-3660 or email sales@naswgr.com with questions.

After hours emergency hotline 216-402-0507 or 216-570-2725
NAS owns Thousands of GE AKR Parts, Switchgear and Circuit Breakers. Come visit us anytime.

North American Switchgear, Inc. is an industry leader in the sale of new, used and out-of-production industrial circuit breakers, switchgear and associated parts. Our Cleveland, OH facility spans over 300,000 square feet and houses over 13,000 low and medium voltage circuit breakers from all major manufacturers. Aside from the sale of circuit breakers, switchgear and replacement parts, NAS also offers equipment recondition and repair services. For more information please visit our website at www.naswgr.com, call 800-909-3660 or email sales@naswgr.com.



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