The ABB Thomas & Betts 290SA is a 3/4-inch stamped aluminum cover designed for use in electrical enclosures. This cover is lightweight yet durable, providing excellent protection against environmental factors. Its design meets industry standards, ensuring compatibility with various applications. The FM9 rating indicates its suitability for specific environments, making it a reliable choice for both indoor and outdoor use. Easy to install, this aluminum cover is an essential component for maintaining the integrity of electrical systems.