✅ ABB E290 Latching Relay 16A Changeover – 1 CO Contact (Part No.: 2TAZ312000R2011) The ABB E290 16A latching relay is a bistable switch with a single changeover contact (C/O), ideal for lighting control with memory retention after power loss. Technical Specifications: Part Number: 2TAZ312000R2011 Model: E290 Rated Current: 16A Contacts: 1 Changeover (C/O) Type: Latching relay Applications: Staircase lighting, load management Mounting: DIN rail