AIR CIRCUIT BREAKERS CONTENTS GENERAL STRUCTURE MAIN TECHNICAL PARAMETERS CHARACTERISTIC OF THE INTELLIGENT CONTROLLER ACCESSORIS DIMENSIONS SECONDARY WIRING DIAGRAM SETTING VALUE BEFORE LEAVING FACTORY TROUBLES AND SOLUTIONS www.sigmaelektrik.com...
AIR CIRCUIT BREAKERS GENERAL Sigma SFA/SDA series intelligent Air Circuit Breakers are suitable for use in commercial buildings or industrial plants where safety and reliability of power supply is an important requirement. Sınıflandırma Main Features; • Fixed and Drawable versions •...
AIR CIRCUIT BREAKERS STRUCTURE Front View Of The Air Circuit Breaker breakdown showing/return button breaking button handle for manual energy-storage closing button energy storage/ energy release indicating closed / broken showing face device for passing in or out handle and its holder position indicator SDA Series Draw-out Air Circuit Breaker SDA-6300...
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AIR CIRCUIT BREAKERS Position Of Draw-out Type Air Circuit Breakers Connected position: Main circuit and control circuit are connected. Auxiliary circuit is ON Unit door Back of the draw-out socker Safety seperator Main circuit is ON Test position: The main circuit disconnected and control circuit connected. Testing is possible with the panel door closed. Auxiliary circuit is ON Unit door Back of the draw-out socker...
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AIR CIRCUIT BREAKERS Intelligent controller Panel caption: Reset button for fault releasing Rated current of the breaker Unit of voltage Voltage indicator Voltage of each line and the min, value Key for selecting voltage Current-time indicator Unit of current and time Indication of three phase current, neutral phase current, grounding fault-current and the max.
AIR CIRCUIT BREAKERS MAIN TECHNICAL PARAMETERS Type SDA 2000 / SFA 2000 SDA 3200 / SDA 3200 SDA 4000 / SFA 4000 Kind Of assembly No Of Poles Electrical Specifications 630, 800, 1000, 1250, Rated Current at 40°ºC 2500, 3200...
AIR CIRCUIT BREAKERS ACCESSORIES UNDER VOLTAGE TRIP COIL UNIT When the supply voltage is reduced or below certain value, the device will then trip the breaker. Supply voltage if reduces or below a value between from the range of 35 - 75 %, the UVT coil will then trip the breaker instantaneusly.
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AIR CIRCUIT BREAKERS AUXILIARY SWITCH Auxiliary switch of 4a + 4b are provided as standard. Rated voltage (V) AC230 Conventional free air thermal current Ith (A) Rated control capacity 300VA MECHANICAL INTERLOCK BETWEEN 2 AIR CIRCUIT BREAKERS It can realize the interlock of two horizontal or vertical-installed, three poles, drawout type or fixed type circuit breaker. a.
AIR CIRCUIT BREAKERS OUTER AND MOUNTING DIMENSIONS SFA-2000 ¡ Fixed Circuit Breaker Mount & Outer Dimensions refer to chart 8, 9. 413(4P) 318(3P) Cabinit door 340(3P) 435(4P) (Vertical Connect) (Lever Connect) Chart 8 Fixed CB mount & Outer Dimensions (SFA/SDA-2000¡2000/4) SFA-3200 Chart 8 Fixed CB mount &...
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AIR CIRCUIT BREAKERS SDA-2000 ¡ Drawer Type CB Mount & Outer Dimensions refer to chart 10, 11, 12, 13, 14, 15, 16. 430(4P) Cabinit door 335(3P) 461(Connect) 507(Disconnect) 375(3P) 470(4P) (Vertical Connect) (Lever Connect) Chart 10 Drawer Type mount & Outer Dimensions (SFA/SDA-2000¡2000/4) SDA-3200 510(4P) Cabinit door...
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AIR CIRCUIT BREAKERS SDA-4000 4000A Cabinit door 494(Connect) 540(Disconnect) 559(Connect) 605(Disconnect) (Vertical Connect) Note: Panel Centre to CB Center Left Right Dimension: 57.5 (Lever Connect) Chart 12 Drawer Type CB mount & Outer Dimensions (SFA/SDA-4000) 6300A 952(4P) 837(3P) Cabinit door 504(Connect) 550(Disconnect) 813(3P)
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AIR CIRCUIT BREAKERS Recommended Connection Busbar Information Rated Current Busbar dimension Number of busbar Rated Current Busbar dimension Number of busbar (mm) (pcs.) (mm) (pcs.) 40X5 2000 100X5 50X5 2500 100X5 1000 60X5 3200 120X10 1250 80X5 4000 120X10 1600 100X5 6300 120X10...
power supply Back-up protection load 1F load 2F AIR CIRCUIT BREAKERS relay coil Fuses N O- contact signal lamp SECONDARY CIRCUIT WIRING DIAGRAM Main Electrical E l e c t r i c Electric Auxiliary switch intelligent controller circuit disconnect disconnect closed Error...
AIR CIRCUIT BREAKERS FACTORY SETTING VALUES The intelligent controller would be configured as follows, If no special demands was put forward when ordering: Current setting Ir1 Overload long-delay Delay time setting t1 Current setting Ir2 8Ir1 Short-circuit short-delay Delay time setting t1 0.4S 12In SFA/SDA-2000...
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AIR CIRCUIT BREAKERS SOME TROUBLES AND SOLUTIONS Fault description Reasons analysis Maintenance method Intelligent release don't reset (panel is raised) Press the reset button to reclose the breaker Secondary circuit of drawerouttype breaker isn't Make the breaker to "making" position ("click" sound will connected be heard) Check the secondary circuit:...
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Do not risk your safety! sigma@sigmaelektrik.com Yunus Emre Mah. Yenidoğan Yolu Cad. No: 30/A 34792 Sancaktepe/ Istanbul / TURKEY Phone : +90 216 429 72 01 (pbx) www.sigmaelektrik.com : +90 216 484 41 01...
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