The Phoenix Contact PS-IH WH insulating sleeve is a crucial component for reliable electrical testing and connection. Designed to ensure consistent contact within bridge shafts and various test sockets (2.3mm or 4mm diameter), this sleeve is part of a modular system, allowing for flexible configuration with PS-...2,3MM test plugs. Constructed for durability and performance, it operates effectively within a wide temperature range (-40°C to 100°C) and meets flammability rating UL 94 V2. This insulating sleeve is commonly used in industrial automation, electrical panel building, and testing applications where secure and reliable connections are paramount.