The M2SSK3-101 Selector Switch is: 2-position - Maintained - Key - Black/Key - Non-illuminated - Black Plastic - No contact block This Selector Switch is part of ABB's modular plastic range, the most versatile range with a high level of flexibility and market-leading electrical ratings. Engineered for total reliability, longer lifetime, and highest mechanical durability. Self-cleaning contacts ensure reliable operation without the need for maintenance, increasing uptime. A high degree of protection guarantees reliability in extreme environments. The innovative design simplifies the entire process, from selection to easy and quick, tool-free installation. The perfect solution for every application. Technical Ambient Air Temperature: Operation -25 ... +70 °C Storage -40 ... +85 °C Color: Black/Key Actuator Type: Key Bezel Material: Black Plastic Illumination: Non-illuminated Function: Momentary Sub-Function: 2-position Spring Return From: C to B Key Removal Positions: Position B Only Key Code: Ronis 455, Key code 71 Enclosure Type NEMA: Type1 Type12 Type3R Type4 Type4X Mechanical Durability: 0.5 million Environmental Degree of Protection: Front IP66