CLARK TB-159-1 T77U021 Control Contactor

SLYVANIA CLARK TB-159-1 T77U021 control contactor is an industrial switching device used to energize and disconnect electrical loads within control circuits. It features a coil type Tm and is sized as Size 1, with the part numbers TB-159-1 and T77U021. In industrial control panels and automation applications, this contactor provides the controlled switching action needed to operate motors and other control loads through a separate control coil. The coil type and size identifiers help technicians verify compatibility with control logic and mounting provisions, while the TB-159-1 and T77U021 references support accurate inventory management and cross-checks against schematics or bill of materials. By selecting a contactor matched to the specified coil and size, installers can ensure reliable actuation and consistent performance within control system architectures. TB-159-1 and T77U021 specifications aid engineers in sourcing exact matching parts and substitutions within the SLYVANIA CLARK product line. These identifiers simplify cataloging and maintenance workflows.