<p>The MMS series key-operated switch is a robust and reliable solution designed for industrial and commercial environments. Constructed from durable metal, this non-illuminated switch offers exceptional performance across a wide range of applications. With an operational temperature range spanning from -30 to 70 degrees Celsius, it is well-suited for both indoor and outdoor installations, providing flexibility in various environmental conditions.</p><p>One of the standout features of this switch is its high degree of protection, rated at IP66. This ensures complete dust-tight protection and resistance against powerful water jets, making it ideal for challenging environments where exposure to dust or moisture could be a concern.</p><p>In terms of compliance, the MMS series adheres to several 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 affirm its reliability and safety in electrical installations.</p><p>The connection type utilizes Faston terminals which facilitate quick and secure connections during installation or maintenance processes. The switch operates with a rated insulation voltage of up to 690 V and boasts a rated impulse withstand voltage of 4 kV ensuring resilience against voltage spikes.</p><p>Its contact configuration consists of three normally open (3NO) contacts which can be beneficial in circuits requiring multiple points of control or isolation. With a maintained actuator type function via key operation, users can confidently lock positions A, B, or C as needed without fear of accidental changes due to vibrations or other external factors.</p><p>This device supports a cutout size requirement of 22 mm which aligns with standard panel mountings making integration into existing systems straightforward while minimizing additional setup costs. Furthermore the rated thermal current capacity stands at an impressive level supporting loads up to ten amperes thus accommodating most common industrial demands efficiently within specified parameters.</p><p>Overall if your project necessitates dependable switching capabilities combined with stringent adherence towards global norms then considering options available within MMS lineup could prove advantageous particularly when factoring durability alongside ease-of-use aspects inherent throughout design elements embedded therein ensuring long-term satisfaction once implemented accordingly.</p>