<p>When considering the MMS series key-operated switch for your industrial or commercial applications, it&#39;s crucial to understand its robust capabilities and specifications. This product is a non-illuminated switch crafted from durable metal, ensuring longevity and reliability in demanding environments.</p><p>The operational temperature range of -30 to 70 degrees Celsius makes it suitable for various settings, from cold storage facilities to warm industrial plants. With an impressive degree of protection rated at IP66, this switch is well-protected against dust and powerful water jets, making it ideal for harsh conditions.</p><p>Compliance with international standards such as CSA C22.2 No. 14, IEC/EN 60073, IEC/EN 60529, IEC/EN 60947-5-1, IEC/EN 60947-5-5, and UL 508 ensures that this product meets rigorous safety and performance requirements. These certifications are essential for ensuring compatibility with existing systems and adherence to industry regulations.</p><p>The MMS series features a Faston connection type which facilitates quick and secure connections during installation or maintenance. Rated insulation voltage stands at a substantial 690 V while the rated impulse withstand voltage is set at 4 kV—these figures underscore the switch&#39;s ability to handle significant electrical loads safely.</p><p>This model has a contact configuration of four normally open (4NO) contacts which can be advantageous when designing circuits requiring multiple pathways or redundancy. The actuator type is key-operated with a maintained function; once engaged by turning the key, it stays in position until manually reset—a feature particularly useful in safety-critical operations where accidental disengagement must be avoided.</p><p>With a rated thermal current of up to 10 A, this switch can manage moderate current loads typical in many industrial applications without overheating or failure. The cutout size measures at an industry-standard 22 mm allowing seamless integration into control panels or consoles without extensive modifications.</p><p>One notable aspect of this device is its maintained positions available: A B C D offering flexibility depending on your operational needs whether it&#39;s locking out certain controls or facilitating specific operating sequences within your system architecture.</p><p>In summary the MMS series key-operated switch combines durability compliance versatility and ease-of-use making it an excellent choice for professionals seeking reliable components tailored for complex environments demanding stringent standards adherence while maintaining straightforward operation through its intuitive design principles.</p>