● The measurement of A-type after-current;
 ● The streamer display of current percentage;
 ● The setting of rated residual action current;
 ● The setting of non-driving time of limitation;
 ● Two-pair relay output;
 ● Possessing the function of on-the-spot and long-distance testing and resetting.
 
                
                                                
                                                                                            
  
                                                
                                                                                            
  
                                                
                                                                                            
  
                                                
                                                                                            
  
                                                
                                                                                            