factory wholesale good quality Miniature Circuit Breaker FTB1 for Namibia Manufacturer
Exterior and dimensions
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|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|
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.
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.
|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)|
The FTB1 series operates selectively with respect to the combination with MCBs
|MCB(B,C characteristic) FTB1(Characteristic E)|
Note: T represents total selectivity
Exterior and dimensions
Carlo Gavazzi SOLITRON Series Solid State Relays presented by Katie Rydzewski for Galco TV. But the item featured in this video at 800-337-1720 or visit: http://www.galco.com/shop/RN-Carlo-Gavazzi-Electromatic-Controls-Solid-State-Relays?source=YouTubeText
SOLITRON RN Series Features:
• AC Solid State Contactor, 1- and 2 poles
• Zero switching (RN1A) for heating and motor applications
• Instant-on switching (RN1B)
• Rated operational current: 1-pole: 30 A, 50 A and 63 A, 2-pole: 2 x 15 A and 2 x 25 A
• Rated operational voltage 230 VAC, 400/480 VAC
• Transient overvoltage protection built-in
• IP 20 protection
• DIN-rail mountable
For more Carlo Gavazzi Solid State Relays go to: http://www.galco.com/shop/Carlo-Gavazzi-Electromatic-Controls-Solid-State-Relays?source=YouTubeText
To find more Carlo Gavazzi Relays visit: http://www.galco.com/get/Carlo-Gavazzi-Electromatic-Controls-Relays?source=YouTubeText
And for the full line of Carlo Gavazzi Products visit: http://www.galco.com/find/Carlo-Gavazzi-Electromatic-Controls?source=YouTubeText
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.
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.
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