Protects 3-phase induction motors and their loads from damage. Selection and combination of operating functions from overcur-rent, open-phase, and reverse-phase. Eaton's Arc Flash Relay (EAFR) provides unmatched switchgear protection. Eaton's. The SIPROTEC 7SA87 is a modular distance protection device for high-voltage lines, offering flexible 1-pole or 3-pole tripping with a minimum 9 ms tripping time. The SIPROTEC 7SL82 offers combined line differential and distance protection, providing a cost-optimized, compact solution for medium-. Solving a wide range of applications in one system, the Pepperl+Fuchs' K-System guarantees a reliable and economical signal transmission between your field device and the control system. Whether your plans include a single isolating module or a large scale system integration— application-oriented. Compact medium voltage protection relays From overcurrent to advanced protection, these easy-to-use protection relays (formerly known as Easergy P3) offer arc flash protection, LPCTs, LPVTs and ethernet communication including IEC 61850 for standard medium voltage applications. Self or Dual Powered. Numerical relays are based on the use of microprocessors.