The AllPoints Foodservice Parts & Supplies 421963 Vacuum Switch is designed for reliable performance in Henny Penny fryers, including models OFG-341, OFG-342, OFG-390, OFG-391, OGA-341, OGA-342, PFG-690, and PFG-691. This switch operates at 3A with voltage ratings of 125/250/277Vac, ensuring compatibility with various electrical systems. Its robust construction guarantees durability and consistent operation, making it an essential component for maintaining optimal fryer functionality.