The RY2S-UDC12V is a DPDT (Dual Pole Dual Throw) miniature relay designed for general-purpose switching in DC-powered systems. It features a 12 VDC coil with an integrated diode to absorb back EMF generated during coil de-energization, resulting in slightly longer release time. The relay offers 3A contact capacity with a plug-in terminal configuration, making it suitable for DIN rail mounting via compatible sockets. The diode is rated for 1,000 V reverse withstand voltage and 1 A forward current. This relay is commonly used in industrial control systems, automation equipment, and DC switching applications where surge protection and reliable switching performance are required.