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The HELLERMANNTYTON TSR3I-33-1 is an interior cover fitting designed for use with compatible raceway systems. This fitting provides a finished, clean transition at interior corners, protecting wire and cable routed through surface-mounted raceway installations. Sold as a single piece per unit, the TSR3I-33-1 is finished in ivory to match standard raceway components. Electricians and low-voltage installers use this fitting to complete professional-grade surface wiring layouts in commercial and residential applications.
This interior cover fitting is suited for surface-mount raceway installations where cable management requires a neat interior corner transition. Typical applications include office wiring, data and communications cable routing, and electrical retrofit projects where concealed in-wall wiring is not practical. The ivory finish blends with standard wall colors commonly found in commercial interiors.
Designed as an OEM-style interior corner cover for use with compatible HELLERMANNTYTON surface-mount raceway systems. Verify raceway series and channel size compatibility before installation.
Installation is typically performed by a licensed electrician or low-voltage technician. De-energize all circuits in the work area before routing conductors or installing raceway fittings. Secure raceway base channels to the mounting surface per the manufacturer guidelines before attaching cover fittings. Consult applicable NEC requirements for conductor fill and surface raceway installation in the project jurisdiction.
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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