The ABB M2SSK1-101 Selector Switch is a key-operated, 2-position maintained switch designed for reliability and durability. Part of ABB's versatile modular plastic range, it offers a high level of flexibility and market-leading electrical ratings. Engineered for a longer lifetime and highest mechanical durability, this non-illuminated switch features self-cleaning contacts for reliable operation without maintenance, increasing uptime. Its high degree of protection ensures reliability even in extreme environments. The innovative design simplifies selection and allows for quick, tool-free installation, making it the perfect solution for various applications..The ABB M2SSK1-101 is a 2-position maintained selector switch with key operation. It features a black plastic bezel and a black/key color. The switch is non-illuminated and does not include a contact block. It is part of ABB's modular product range and operates within an ambient air temperature range of -25 to +70 degrees Celsius. The dimensions of the product are 0.048 m in width, 0.03 m in height, and 0.063 m in depth, with a weight of 0.045 kg.