<p>The MMS Series key-operated switch is a robust and reliable choice for industrial and commercial applications requiring precise control. Engineered with a focus on durability, this non-illuminated switch features a sturdy metal construction that ensures longevity even in challenging environments. Its operational temperature range of -30 to 70 degrees Celsius makes it versatile enough for various settings, from cold storage facilities to hot manufacturing floors.</p><p>Designed with an IP66 degree of protection, the switch offers excellent resistance against dust and water ingress, making it suitable for outdoor or dusty indoor environments. This level of protection helps maintain optimal performance without frequent maintenance interruptions.</p><p>Compliance with multiple standards and approvals 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 underscores its reliability and safety credentials. These certifications assure users that the product adheres to stringent international safety standards.</p><p>The faston connection type simplifies installation processes by allowing quick and secure connections without specialized tools. With a rated insulation voltage of 690 V and a rated impulse withstand voltage of 4 kV, this switch is designed to handle high voltages safely—ideal for demanding electrical systems.</p><p>Featuring a maintained function with positions A, B, C, the switch allows operators to set it in specific positions until manually changed—providing consistent operation according to user needs. The actuator type is key-based which enhances security by restricting access only to authorized personnel who possess the correct key.</p><p>The contact configuration includes two normally closed (2NC) contacts which are commonly used in safety circuits where interruption is critical if faults occur or doors are opened unexpectedly.</p><p>With a cutout size of 22 mm and rated thermal current capacity up to 10 A this component integrates seamlessly into standard panel designs while providing sufficient current handling capabilities for most applications within its range.</p><p>Overall the MMS Series key-operated switch combines robust design advanced functionality compliance with international standards making it an ideal choice for professionals seeking dependable solutions tailored perfectly towards their technical requirements ensuring both performance efficiency across diverse operational contexts.</p>