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ON LOAD CHANGE OVER SWITCH


        	

                  
               

                    
                        
                           
                            
                       
                    
                

            	
                

                    

                        

                           
                            
 ON LOAD CHANGE OVER SWITCH

                            
                            

                                
                                
                                
                                
                            

                        

                        

                             
Altech On-load Changeover Switch find a wide application scope where the reliability of electrical supply from the utility is low and are used in lighting/motor circuits where continuity of supply is necessary, for switching to an alternative source from main supply and vice versa.



They are switch disconnectors with independent manual operation capable of making, carrying and breaking currents  under normal circuit conditions such as short circuit for a specified time,



These switches are modular in construction compact in size and suitable for stringent utilization category AC-23A/B.

							   
 




	
		

			                                                                        Onload change over switch Technical Data
		

	





	
		

			S. No.
			Specification  (IS / IEC 60947- 3)
			Unit
			Frame Size 00
			Frame Size 1
			Frame Size 2
			Frame Size 3
		

		

			1
			Rated operational current, I
			A
			63
			100
			125
			160
			200
			250
			320
			400
			630
		

		

			2
			Conventional free air thermal current, Ith
			A
			63
			100
			125
			160
			200
			250
			320
			400
			630
		

		

			3
			Rated uninterupted current, Iu
			A
			63
			100
			125
			160
			200
			250
			320
			400
			60
		

		

			4
			No. of Poles
			 
			4
			4
			4
			4
			4
			4
			4
			4
			4
		

		

			5
			Rated insulation voltage, U
			Vac
			1000
			1000
			1000
			1000
			1000
			1000
			1000
			1000
			1000
		

		

			6
			Rated operational voltage, Ue
			Vac
			415V
			415V
			415V
			415V
			415V
			415V
			415V
			415V
			415V
		

		

			7
			Di-electric strength, 50 Hz
			kV
			5
			5
			5
			5
			5
			5
			5
			5
			5
		

		

			8
			Rated impulse withstand voltage, Uimp
			kV
			8
			8
			8
			8
			8
			8
			8
			8
			8
		

		

			9
			Utilization Category
			 
			AC23 A
		

		

			10
			Conventional Enclosed Thermal Current at 40 °C, Ithe
			A
			63
			100
			125
			160
			200
			250
			320
			400
			630
		

		

			11
			Rated making capacity Amp, 436 Vac 23 A, p.f.- 0.35
			A
			630
			100
			1250
			1600
			2000
			2500
			3200
			4000
			6300
		

		

			12
			Rated breaking capacity Amp, 436 Vac 23 A, p.f.- 0.35
			A
			504
			800
			1000
			1280
			1600
			2000
			2560
			3200
			5040
		

		

			13
			Rated operational power at 415 V, 3ø
			kW
			36
			58
			72
			92
			115
			144
			184
			230
			362
		

		

			14
			Rated conditional short circuit current
			kA rms
			80
			80
			80
			80
			80
			80
			80
			80
			80
		

		

			15
			Max. Allowed cut off current
			kA peak
			 
			 
			17
			18
			22
			27
			33
			39
			55
		

		

			16
			No. of operating cycles AC – 23 A
			 
			1000
			1000
			1000
			1000
			1000
			1000
			1000
			1000
			1000
		

		

			17
			No. of no load operating cycles
			 
			10000
			10000
			10000
			10000
			10000
			10000
			8000
			8000
			8000
		

		

			18
			Temperature withstand range (Ambient)
			°C
			,-5 to 50
			,-5 to 50
			,-5 to 50
			,-5 to 50
			,-5 to 50
			,-5 to 50
			,-5 to 50
			,-5 to 50
			,-5 to 50