Product DescriptionThe ABB KT3VDM is a variable depth handle operator mechanism designed for manual operation of circuit breakers in protected enclosure applications. Finished in black, this handle mechanism provides external operator access to a breaker without compromising enclosure integrity. It carries NEMA 4 and NEMA 4X ratings, making it suitable for installations where watertight and corrosion-resistant protection is required. Licensed electricians and panel builders typically install this component when a breaker must be operable from outside a sealed enclosure.The KT3VDM is intended for use with ABB T1 and T3 molded case circuit breakers. It fits residential, commercial, and light industrial panel and enclosure builds where external handle access is required without sacrificing NEMA-rated protection. This mechanism is a practical solution for applications in wet, wash-down, or corrosive environments where direct breaker access is restricted by the enclosure design.Key FeaturesVariable depth design accommodates different mounting depths without requiring custom hardwareNEMA 4 and NEMA 4X rated for watertight and corrosion-resistant enclosure protectionBlack finish suitable for standard electrical enclosure aestheticsCompatible with ABB T1 and T3 series molded case circuit breakersAllows external breaker operation while maintaining enclosure seal integrityCompatibilityDesigned for use with ABB T1 and T3 series molded case circuit breakers as stated by the manufacturer.Installation NotesInstallation should be performed by a licensed electrician in accordance with applicable NEC requirements. De-energize the circuit and verify the breaker is in the off position before mounting or adjusting the handle mechanism. Follow the manufacturer instructions for depth adjustment to ensure proper engagement with the breaker toggle. Do not force the mechanism into position, as improper alignment can prevent reliable breaker operation.Technical SpecificationsEnclosure Rating: NEMA 4, NEMA 4XColor: BlackCompatible Breaker Series: T1, T3UPC: 66201992824Standard InformationBrand: ABBManufacturer Part Number: KT3VDM