<p>The MMS series key-operated switch is a robust and reliable solution tailored for industrial and commercial applications. Designed with precision, this non-illuminated switch offers an array of features that make it suitable for various demanding environments.</p><p>Constructed from durable metal, the switch is engineered to withstand harsh conditions, boasting an impressive operational temperature range from -30 to 70 degrees Celsius. This makes it ideal for both cold and hot climates, ensuring consistent performance across diverse settings.</p><p>One of the standout features of this product is its IP66 degree of protection. This rating signifies excellent resistance against dust ingress and powerful water jets, offering peace of mind in environments where moisture or particulate matter might be a concern.</p><p>In terms of safety standards and approvals, the switch adheres to multiple international standards including CSA C22.2 No. 14, IEC/EN 60073, IEC/EN 60529, IEC/EN 60947-5-1, IEC/EN 60947-5-5, and UL 508. These certifications underscore its reliability and compliance with stringent industry requirements.</p><p>The connection type for this switch is Faston, which facilitates easy installation and maintenance. With a rated insulation voltage of 690 V and a rated impulse withstand voltage of 4 kV, it ensures robust electrical performance even under challenging conditions.</p><p>The contact configuration includes two normally closed (2NC) contacts providing secure switching operations. The actuator type is key-operated with a momentary function—meaning it returns to its original position once released—offering precise control over operations.</p><p>Additionally, the switch supports maintained positions A, C, B allowing flexibility in operation modes depending on specific application needs. Its cutout size measures at a standard 22 mm making it compatible with widely used panel designs without requiring additional modifications.</p><p>With a rated thermal current capacity up to 10 A this switch can handle significant power loads safely making it suitable for high-demand applications where reliability cannot be compromised.</p><p>Overall if you&#39;re seeking an efficient dependable key-operated solution that meets rigorous technical specifications while also being user-friendly look no further than the MMS series—a testament to quality engineering designed specifically for professionals who demand excellence in every detail.</p>