The HBL2515SW is a Twist-Lock®, watertight, safety-shrouded flanged inlet designed for heavy-duty industrial environments. It is rated for 20A and 3-phase Y 120/208V AC with a 4-pole, 5-wire NEMA L21-20P configuration. Constructed with an impact-resistant gray PBT housing and brass blades, it withstands a minimum dielectric voltage of 2,000V and accepts wire sizes from #16 to #8 AWG. With Type 4, 4X, 12, and IP66 environmental ratings, the device ensures a reliable connection in harsh conditions within a temperature range of -40°C to 75°C, making it suitable for demanding industrial power applications.