The Phoenix Contact 1055717 is a high-quality protective cap from the M17 PRO series, designed to safeguard device connectors in industrial environments. Constructed with durable PA 6.6 housing and an FKM seal, this protective cap ensures reliable protection against environmental factors, enhancing the longevity and performance of your connectors. Ideal for use with the M17 PRO series, it is an essential accessory for maintaining the integrity of your industrial automation systems.