China Wholesale for Miniature Circuit Breaker FTB1 to Liberia Factory

Overview:



Technical data

Product illustration

Tripping characteristic

Exterior and dimensions

Related video

It is our responsibility to meet your needs and efficiently serve you. Your satisfaction is our best reward. We are looking forward to your visit for joint growth for China Wholesale for Miniature Circuit Breaker FTB1 to Liberia Factory, We are sincerely welcome good friends from numerous circles at dwelling and abroad come to cooperate!


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)





Bad BREAKER in Electric Box is Replaced and now everything works!!



The radio show Calling All Cars hired LAPD radio dispacher Jesse Rosenquist to be the voice of the dispatcher. Rosenquist was already famous because home radios could tune into early police radio frequencies. As the first police radio dispatcher presented to the public ear, his was the voice that actors went to when called upon for a radio dispatcher role.

The iconic television series Dragnet, with LAPD Detective Joe Friday as the primary character, was the first major media representation of the department. Real LAPD operations inspired Jack Webb to create the series and close cooperation with department officers let him make it as realistic as possible, including authentic police equipment and sound recording on-site at the police station.

Due to Dragnet’s popularity, LAPD Chief Parker “became, after J. Edgar Hoover, the most well known and respected law enforcement official in the nation”. In the 1960s, when the LAPD under Chief Thomas Reddin expanded its community relations division and began efforts to reach out to the African-American community, Dragnet followed suit with more emphasis on internal affairs and community policing than solving crimes, the show’s previous mainstay.

Several prominent representations of the LAPD and its officers in television and film include Adam-12, Blue Streak, Blue Thunder, Boomtown, The Closer, Colors, Crash, Columbo, Dark Blue, Die Hard, End of Watch, Heat, Hollywood Homicide, Hunter, Internal Affairs, Jackie Brown, L.A. Confidential, Lakeview Terrace, Law & Order: Los Angeles, Life, Numb3rs, The Shield, Southland, Speed, Street Kings, SWAT, Training Day and the Lethal Weapon, Rush Hour and Terminator film series. The LAPD is also featured in the video games Midnight Club II, Midnight Club: Los Angeles, L.A. Noire and Call of Juarez: The Cartel.

The LAPD has also been the subject of numerous novels. Elizabeth Linington used the department as her backdrop in three different series written under three different names, perhaps the most popular being those novel featuring Det. Lt. Luis Mendoza, who was introduced in the Edgar-nominated Case Pending. Joseph Wambaugh, the son of a Pittsburgh policeman, spent fourteen years in the department, using his background to write novels with authentic fictional depictions of life in the LAPD. Wambaugh also created the Emmy-winning TV anthology series Police Story. Wambaugh was also a major influence on James Ellroy, who wrote several novels about the Department set during the 1940s and 1950s, the most famous of which are probably The Black Dahlia, fictionalizing the LAPD’s most famous “cold case”, and L.A. Confidential, which was made into a film of the same name. Both the novel and the film chronicled mass-murder and corruption inside and outside the force during the Parker era. Critic Roger Ebert indicates that the film’s characters (from the 1950s) “represent the choices ahead for the LAPD”: assisting Hollywood limelight, aggressive policing with relaxed ethics, and a “straight arrow” approach.

http://en.wikipedia.org/wiki/LAPD

Related Products

WhatsApp Online Chat !