SIPROTEC 4 is the industry standard for digital protection technology in all fields of application and leads the way in integrating protection, control, measurement, and automation functions in one device.
Overcurrent and motor protection
Multifunction protection – SIPROTEC 7SJ61 – V4.9 (SI4018)
Multifunction protection – SIPROTEC 7SJ62 – V4.9 (SI4019)
Multifunction protection – SIPROTEC 7SJ63
Multifunction protection with synchronization – SIPROTEC 7SJ64 – V4.9 (SI4019)
Multifunction protection – SIPROTEC 7SJ66
Distance Protection
Distance protection for transmission lines – SIPROTEC 7SA522 – V4.74 (SI4012)
Distance protection for all voltage levels – SIPROTEC 7SA61 – V4.74 (SI4011)
Line differential protection
Line differential protection for two line ends – SIPROTEC 7SD610 – V4.7 (SI4014)
Line differential protection with distance protection – SIPROTEC 7SD5 – V4.7 (SI4013)
Breaker management
Breaker-management device – SIPROTEC 7VK61 – V4.7 (SI4015)
Transformer differential protection
Transformer differential protection – SIPROTEC 7UT612 – V4.67 (SI4016)
Motor and generator protection
Motor and generator protection – SIPROTEC 7UM61
Motor and generator protection – SIPROTEC 7UM62
paralleling device
Paralleling device – SIPROTEC 7VE6
High speed busbar transfer device
High speed busbar transfer device – SIPROTEC 7VU68 – V4.76 (SI4020)
Busbar protection
Distributed Busbar/Breaker Failure protection – SIPROTEC 7SS522 – V4.7 (SI4017)
Distributed Busbar/Breaker Failure protection – SIPROTEC 7SS523 – V3.3 (SI4017)
Distributed Busbar/Breaker Failure protection – SIPROTEC 7SS525 – V3.3 (SI4017)
Bay controllr
IO-box – SIPROTEC 6MD61
Bay controller unit – SIPROTEC 6MD63
Bay controller – SIPROTEC 6MD66