<p>The MMS Series Key Actuator is designed for those who require a reliable and durable solution in industrial and commercial settings. Constructed from robust metal, this non-illuminated device ensures longevity and resilience even in demanding environments. With an operational temperature range of -30 to 70 degrees Celsius, it performs consistently under various conditions.</p><p>One of the standout features is its IP66 degree of protection, making it highly resistant to dust ingress and powerful water jets, which is ideal for challenging industrial applications. The key actuator adheres to rigorous 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 compliance with international safety and performance benchmarks.</p><p>The connection type for this actuator is screw-based, ensuring secure electrical connections that are easy to implement during installation or maintenance phases. It boasts a rated insulation voltage of up to 690 V along with a rated impulse withstand voltage of 4 kV—suitable for systems requiring high-voltage endurance.</p><p>This device features a contact configuration of three normally closed (3NC) contacts which provides dependable operation in control circuits by preventing accidental activation unless specifically triggered by the key actuator function. Its momentary action means the circuit remains engaged only while pressure is applied on the actuator—a crucial feature for tasks requiring precise control.</p><p>Rated for a thermal current of up to 10 A, this component handles substantial power loads without compromising on performance or safety. The cutout size is standardized at 22 mm facilitating straightforward integration into existing panels or new installations.</p><p>In terms of maintained positions—A, C, B—the device offers flexibility in configuration depending on specific application needs allowing users to tailor operations according to their requirements efficiently.</p><p>Overall, this key actuator from the MMS Series delivers robust functionality combined with adherence to stringent safety standards making it an excellent choice for professionals seeking dependable components that meet technical specifications without unnecessary complexity or frills.</p>