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The HELLERMANNTYTON TSR3W-21-1 is a tee cover fitting designed for use with 1-1/4 inch raceway systems. It provides a clean, finished cap at tee junction points where surface-mounted raceway channels branch in three directions. The white finish matches standard white raceway installations, maintaining a consistent appearance on walls and ceilings. Electricians and low-voltage installers use this fitting during cable management and wire routing work in commercial and residential settings.
This tee cover is suited for surface raceway installations where branch points require a protective and finished cover. It is commonly installed in office environments, classrooms, healthcare facilities, and other spaces where exposed wiring must be routed neatly along walls or baseboards. The fitting snaps or clips into place over the tee body of a compatible 1-1/4 inch raceway system.
Designed as an OEM-style replacement or accessory cover for 1-1/4 inch surface raceway tee fittings in standard raceway cable management systems.
Installation is typically performed by a licensed electrician or low-voltage technician. Power down all circuits running through the raceway before handling or installing covers. Ensure the tee body fitting is fully seated and secured before attaching the cover. Follow applicable NEC guidelines for surface raceway wiring methods.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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