Signal relays are essential components in automatic control systems, designed to connect and disconnect circuits, issue control commands, and reflect the state of equipment. These relays play a critical role in forming automatic control and remote control circuits, ensuring reliable system performance.

Key advantages of signal relays include fast operation, stable performance, long service life, and compact size. Composed of an iron core, coil, armature, and contact reed, these relays deliver consistent functionality across a range of applications, including power protection, automation, motion control, remote control, and communication devices.