The Honeywell ML-1155 is a heavy-duty, enclosed electromechanical switch assembly engineered for use in blower motor relays and other critical industrial applications. Its robust construction includes a corrosion-resistant steel enclosure, plunger, and bushing, ensuring durability and longevity in harsh environments. The switch is sealed to MIL-PRF-8805 standards, providing protection against moisture and contaminants. The ML-1155 is designed to meet stringent performance requirements, including coincidence of operating and releasing points within a tight tolerance and operation across a wide temperature range (-55°C to +85°C). It is commonly used in starter switches and blower motor relays, offering reliable switching functionality for various industrial equipment.