The Schmersal RSS/RST Key Selector Switch is a robust and versatile component for industrial control systems. Designed to fit a 22.3 mm diameter hole, this switch features a dual plunger design and offers three distinct switch positions with key withdrawal options at positions 0, I and II. It ensures secure operation with latching functionality on both the right and left sides. The fully insulated construction paired with an EFM mounting flange allows for safe installation and operation within a temperature range of 0 to 75 deg C. Rated at IP66, it guarantees protection against dust ingress and high-pressure water jets. Ideal for engineers looking for reliable pushbuttons and signalling solutions, this switch falls under the category of switches and is part of Schmersal's trusted RSS/RST series.