Hubbell CS8164C Locking Connector – 50A, 480V, 3-Phase 4-Wire (UL498)

Secure, heavy-duty power connection for demanding environments

The Hubbell CS8164C locking connector is designed to deliver a reliable link between equipment and power in industrial settings. With a 50 amp rating at 480 volts and a 3-pole, 4-wire grounding configuration, this locking twist-lock device is built to stay engaged under vibration, heat, and continuous use. The combination of a durable composite body and a two-tone black and white housing communicates toughness and visibility for field technicians while remaining compact enough for cord-mounted installations.

Key specifications at a glance include a heavy-duty application profile, UL498 recognition, a cord-mounted mounting style, and a robust composite construction. The twist-lock mechanism provides a secure connection with a clear engagement, helping teams work more efficiently on busy shop floors or in field environments where connections must remain steadfast as equipment operates. This connector is described as non-NEMA, reflecting a specialized form factor that matches select equipment configurations rather than a standard enclosure footprint.

Engineering and practical benefits

• Locking twist-lock design offers a secure, vibration-resistant connection with an audible engagement.
• Composite housing combines durability with reduced weight for easy handling and installation.
• Cord-mounted mounting supports straightforward field assembly and flexible positioning on machinery or fixtures.
• Screw-terminal option provides a reliable method for field terminations and maintenance checks.
• UL498 certification reinforces safety-conscious design for industrial power distribution and equipment connections.

Real-world use scenarios

• Heavy machinery hookups on production lines where a stable 50A, 480V supply is needed.
• Temporary or permanent power connections at testing benches, control panels, and motor drives.
• Field installations requiring a secure locking interface that resists accidental disconnection during operation.