Hubbell Incorporated HBL5100R7W 3-Phase Receptacle

The Hubbell HBL5100R7W is a 100 A, three‑phase receptacle designed for Y (wye) 277/480 VAC service. Built by Hubbell Incorporated, the HBL5100R7W serves as a dedicated outlet interface for connecting three‑phase equipment to a high‑voltage distribution system in installations that supply 277/480 VAC. In 277/480 VAC systems, 277 V typically refers to line‑to‑neutral voltage and 480 V to line‑to‑line voltage, reflecting common commercial and industrial networks this receptacle is engineered to complement. This receptacle is specified for 277/480 VAC, three‑phase service, enabling a fixed, robust power connection point in industrial and commercial environments that use 3‑phase power. With a 100 A rating, it is intended to carry the current appropriate for properly wired circuits when paired with compatible conductors, protective devices, and mating hardware. The HBL5100R7W is part of Hubbell's lineup of 3‑phase receptacles, offering a standardized, reliable solution for distributing high‑voltage three‑phase power to compatible equipment.