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The SQUARE D 9080MH439 is a 35mm top-hat style aluminum DIN rail used to mount terminal blocks, circuit breakers, relays, and other DIN-compatible control components inside electrical enclosures and control panels. The rail measures 1 meter in length, 1.38 inches high, and 0.30 inches wide, with a material thickness of 0.04 inches. Mounting holes spaced along the rail measure 0.98 inches long by 0.71 inches wide, allowing for straightforward panel attachment. Electricians and panel builders work with this rail during enclosure assembly and control panel fabrication.
This DIN rail is suited for both residential and commercial electrical control panel applications. It provides a standard mounting surface for a wide range of snap-on DIN-compatible devices. Typical installations include motor control centers, distribution panels, automation enclosures, and industrial control cabinets. The full 1-meter length gives panel builders flexibility to cut the rail to fit specific enclosure depths or mount it as a single continuous run.
Designed as a standard 35mm top-hat DIN rail for use with any DIN EN 50022-compatible snap-on components, including terminal blocks, relays, circuit breakers, and motor starters.
Installation is typically performed by a licensed electrician during panel assembly or retrofit. De-energize the enclosure and follow NFPA 70 (NEC) lockout/tagout procedures before working inside any live panel. Secure the rail to the enclosure back plate using appropriately sized screws through the pre-punched mounting holes. When cutting the rail to length, use a metal-cutting saw or rail cutter and deburr cut edges before mounting components.
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