ABB makes low voltage electronic relays (thermistor relays, timer relays, monitoring relays, safety relays, interface relays, solid state relays, etc.) as well as protective relays for generators, transformers and substations.

• Low Voltage Electronic Relays
  A comprehensive Electronic Relay assortment with a nice design and customer oriented functions. Including Thermistors Relays, Timer Relays, Monitoring Relays, Safety Relays, Interface Relays and Solid State Relays


• Protective relays
  For protection, monitoring and control


• Radio Relay Systems
  Synthesizer for easy change of TX/RX frequency, modular concept for high flexibility, wide range of transmission capacity and wide range of frequency bands


• Sudden pressure relay
  The ABB Sudden Pressure Relay is a device that detects a sudden rise in gas pressure within a power transformer and forces a microswitch to temporarily change state.