The HUBBELL HBL1221L is a robust industrial locking switch engineered for environments requiring enhanced security and durability. This switch features a key guide to prevent unauthorized operation, making it ideal for critical applications. Rated for 15A at 120/277V AC, it provides reliable performance in demanding industrial settings. The switch is part of HUBBELL's Extra Heavy Duty Industrial Locking Series, known for its quality and longevity. Replacement barrel keys are available for added convenience.