The HONEYWELL part RDI-H-R is a reliable and sturdy Switch Safety Interlock Key designed for industrial applications. It operates on both 24VAC and 24VDC power sources, making it versatile and adaptable to various systems. With a convenient screw mount connector, installation becomes effortless and secure. This safety interlock key is built to withstand rigorous use, with a durability rating of 55000 cycles. Trust this HONEYWELL switch to provide reliable and long-lasting performance for your industrial safety needs.