To ensure reliable switching, these nibs bite through oxide, which can form on silver contacts, eliminating the need for expensive logic level blocks for most applications
Diaphragm seals with drainage holes
Grounding nibs on the operator casing
Drainage holes prevent build-up of liquid inside the operator which can prevent operation in-freezing environments
Grounding nibs bite through paint and other coatings to provide secure ground
Slow make and break contact operation positive opening NC contacts for improved safety