<p>The MMS2 series key-operated switch is a robust choice for industrial and commercial applications requiring reliable performance. Crafted from durable metal, this non-illuminated switch is designed to withstand demanding environments with an operational temperature range of -30 to 70 degrees Celsius. Its IP66 rating ensures protection against dust and powerful water jets, making it suitable for outdoor or harsh indoor conditions.</p><p>Engineered to meet multiple standards and approvals, 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, the MMS2 series aligns with global safety and performance requirements. This makes it a dependable component in your electrical installations.</p><p>Connection integrity is maintained through its screw connection type, providing secure attachment points that are crucial in high-vibration settings. The rated insulation voltage of up to 690 V ensures safe operation within various systems while the rated impulse withstand voltage of 4 kV offers additional protection against transient overvoltages.</p><p>With a contact configuration of 1NO (normally open), this switch supports simple control tasks where an open circuit is required until activation by the key actuator. The maintained function allows the switch to stay in position B or C without continuous pressure on the actuator—ideal for applications where consistent control states are necessary.</p><p>The MMS2 series features a cutout size of 22 mm which fits standard panel configurations easily. It also accommodates LED block light types if illumination options are needed elsewhere in your system setup.</p><p>Rated for a thermal current of up to 10 A, this switch can handle moderate power loads effectively without overheating risks under normal operating conditions. Whether you’re upgrading existing setups or building new installations from scratch, integrating the MMS2 into your design could offer both reliability and compliance with industry standards—all wrapped up in one efficient package.</p>