The ALTECH part UR-02 is a reliable and efficient relay accessory that is used to provide mechanical interlock for contactors. This interlock ensures proper coordination and sequencing of electrical circuits, preventing any potential damage or malfunction. With its sturdy construction and high-quality materials, the UR-02 offers excellent durability and long-lasting performance. It is designed to seamlessly integrate with various contactor models, allowing for easy installation and hassle-free operation. Whether in industrial or commercial applications, the ALTECH UR-02 is an indispensable component for maintaining a safe and efficient electrical system.