S1相故障继电器主要检测相与相等功能、缺相、断相及相序。 
    
        
            | Supply Voltage | 
        
            | 
                
                    
                        |  | System | : | 380 – 440 VAC, ± 20%, 3PH-3 Wire |  
                        |  | Auxillary | : | Built-in from 3-Phase |  
                        | 
 |  | 
        
            | 
                
                    
                        | Output Contacts | : | 1 CO |  
                        | 
 |  
                        | Trip Setting(Volts) |  |  |  
                        |  | Phase Sequence | : | Yes |  
                        |  | Phase Unbalance | : | – |  
                        | 
 |  | 
        
            | Trip Time Delay | 
        
            | 
                
                    
                        |  | On Phase Failure/ Unbalance | : | Instant |  
                        |  | For Level Sensing | : | NA |  
                        | 
 |  
                        | Resetting Mode | : | Auto Reset |  
                        | 
 |  
                        | Weight | : | 90 gms. (Approx.) |  | 
        
            | 
 | 
        
            | Dimensions (mm) | 
        
            | 
                
                    
                        |  | Overall (L x W x D) | : | 90 x 18 x 60 (Approx.) |  
                        |  | Mounting (L x W) | : | 35 mm rail Mounting |  
                        | 
 |  | 
        
            | Note: | 
        
            | 
                
                    
                        |  | Wherever not specified Contact Rating : 5A @ 230 V AC  (resistive) |  
                        |  | * Available on  request. |  | 
    
    
        
            | Supply Voltage | 
        
            | 
                
                    
                        |  | System | : | 380 – 440 VAC, ± 20%, 3PH-3 Wire |  
                        |  | Auxillary | : | Built-in from 3-Phase |  
                        | 
 |  | 
        
            | 
                
                    
                        | Output Contacts | : | 1 CO |  
                        | 
 |  
                        | Trip Setting(Volts) |  |  |  
                        |  | Phase Sequence | : | Yes |  
                        |  | Phase Unbalance | : | – |  
                        | 
 |  | 
        
            | Trip Time Delay | 
        
            | 
                
                    
                        |  | On Phase Failure/ Unbalance | : | Instant |  
                        |  | For Level Sensing | : | NA |  
                        | 
 |  
                        | Resetting Mode | : | Auto Reset |  
                        | 
 |  
                        | Weight | : | 90 gms. (Approx.) |  | 
        
            | 
 | 
        
            | Dimensions (mm) | 
        
            | 
                
                    
                        |  | Overall (L x W x D) | : | 90 x 18 x 60 (Approx.) |  
                        |  | Mounting (L x W) | : | 35 mm rail Mounting |  
                        | 
 |  | 
        
            | Note: | 
        
            | 
                
                    
                        |  | Wherever not specified Contact Rating : 5A @ 230 V AC  (resistive) |  
                        |  | * Available on  request. |  | 
    
   
