MY Miniature Power Relays Omron MY Miniature Power Relays are versatile, multi-featured, and miniature power relays designed for sequence control and power switching applications. These relays feature latching levers for easier circuit checking and are available in various colors of coil tape for AC and DC models. The MY miniature power relays have an operating temperature range of -55°C to +70°C and are UL/CSA and VDE certified.