New, old stock in original package. Square D Suppression Module CL9999TY ST-1 132 VAC MAX This Square D Suppression Module Type S, model number 9999-ST-1, is an excellent addition to any electrical equipment setup. Designed with top-of-the-line technology, this module is perfect for circuit breakers and disconnectors. The brand Square D is known for its high-quality products, and this suppression module is no exception. With tripping characteristics of Type S, this module is sure to provide reliable protection against any electrical surges or spikes. It is ideal for use in business and industrial settings, and can enhance the safety and efficiency of any electrical system. Don't miss out on the opportunity to add this top-notch Square D Suppression Module Type S to your collection.