The HBL45105 is a Variload® Twist-Lock® receptacle designed for non-NEMA applications. It is rated for 30 amperes and 250 volts AC/DC and features a 4-pole, 5-wire grounding configuration. As part of the Variload series, it utilizes a specific, non-interchangeable center pin and slot design to ensure proper circuit mating. This system is ideal for environments like large plants and laboratories where multiple circuit ratings are present, preventing accidental connection to circuits with different ratings.