Protection Devices 
        
 >  6MD61x I / O Box
  > 6MD63x Medium Voltage Bay Unit
  > 6MD662-664 Bay Control Unit
  > 6MD665 Bay Processing Unit
  > 7PA2 / 3 Relays for high responsibility applications
  > 7RE28x Voltage Balance Relay
  > 7RW600 Voltage- / Frequency Protection
  > 7SA522 Distance Protection
  > 7SA6xx Distance Protection and Control
  > 7SD52x / 53x Differential Protection for 2 - 6 Line-Terminals with Distance Protection
  > 7SD600 Line Differential Protection for one pilot wire pair
  > 7SD610 Universal Two-Terminal Differential Protection
  > 7SJ45 easy Numerical overcurrent protection
  > 7SJ46 easy Numerical overcurrent protection
  > 7SJ600 Overcurrent, Motor and Overload Relay
  > 7SJ601 Overcurrent, Motor and Overload Relay
  > 7SJ602 Overcurrent and Overload Relay
  > 7SJ61x Multifunction Protection
  > 7SJ62x Multifunction Protection
  > 7SJ63x Multifunction Protection
  > 7SJ64x Multifunction Protection with Synchro Function
  > 7SJ80x Multifunction Protection Relay
  > 7SK80x Motor Protection Relay
  > 7SN600 Transient Earth-Fault Relay
  > 7SS52x Distributed Busbar and Circuit-Breaker Failure Protection Relay
  > 7SS60x Centralized Numerical Busbar Protection
  > 7ST61x / 63x Overhead Contact-Line Protection for AC Traction Power Supply
  > 7SV600 Numerical Circuit–Breaker Failure Protection Relay
  > 7TS15 / 16 Annunciation Relay
  > 7UM61x Multifunction Generator Protection Relay
  > 7UM62x Multifunction Generator Protection Relay
  > 7UT612 Multiple function protection for two winding transformers
  > 7UT613 / 63x Differential protection for transformers (2 - 5 windings / ends)
  > 7UW50x Tripping Matrix
  > 7VE6xx Multifunction Paralleling Device
  > 7VH60x High Impedance Differential Relay 
  > 7VK61x Breaker Management Relay
  > 7VP15x Portable Test System
  > 7XV75x Test Switch
     

  > 7SA510 Distance Protection
  > 7SA511 Distance Protection
  > 7SA513 Line Protection Relay
  > 7SA518 Overhead Contact-Line Protection Relay
  > 7SA519 Overhead Contact-Line Protection Relay
  > 7SD502 Line Differential Protection with two Pilot-Wires
  > 7SD503 Line Differential Protection with three Pilot-Wires
  > 7SD511 Current Comparison Protection Relay
  > 7SD512 Current Comparison Protection Relay with AR
  > 7SJ50x Overcurrent-Time Protection Relay
  > 7SJ511 Overcurrent-Time Protection Relay
  > 7SJ512 Overcurrent-Time Protection Relay
  > 7SJ531 Line and Motor Protection
  > 7SJ551 Multi-Function Protection Relay
  > 7SS50x Busbar / Circuit-Breaker Failure Protection Relay
  > 7UT51x Differential Protection Relay
  > 7SV512 Numerical Circuit–Breaker Failure Protection Relay
  > 7SV73x Power Supply Unit
  > 7UM511 Generator Protection
  > 7UM512 Generator Protection Relay
  > 7UM515 Generator Protection Relay
  > 7UM516 Generator Protection Relay
  > 7VE51x Synchronizing Unit
  > 7VH80x High Impedance Differential Relay (1 Pole) 
  > 7VH83x High Impedance Differential Relay (3 Pole) 
  > 7VK512 Auto–Reclose Relay