Siemens Solenoid Interlock Switch, Power to Unlock, Metal Body, 24V DC, Standard Coded Actuator, IP67/IP66, 3SE5312-1SD11

Siemens 3SE5312-1SD11 Solenoid Interlock Switch is a robust safety device engineered to secure machine doors and guard access points during operation. Featuring a power to unlock actuator, it ensures access is only granted when appropriate signals are received, maximizing operator safety in high-risk industrial, manufacturing, and automation environments. The switch is constructed with a metal body to withstand demanding conditions, making it suitable for continuous use in manufacturing plants, laboratories, and other industrial applications.

It delivers advanced access control with a standard coded actuator, and offers flexible installation with actuator heads rotatable in four 90° increments for five possible directions of approach. The built-in auxiliary magnet ensures reliable operation and prevents the NC contacts from closing when the door is open. Its manual auxiliary release mechanisms allow for emergency access, maintenance, or installation needs.

This model operates on 24V DC supply voltage, supporting low power consumption at just 3.5W, and features one NO safety contact plus one auxiliary contact for comprehensive status monitoring. The screw terminal type ensures secure connections and ease of wiring during installation and maintenance. The IP67/IP66 rated enclosure offers exceptional protection from dust and water intrusion, maintaining reliability across harsh environments.

Certified by UL, VDE, and CSA standards, Siemens 3SE5312-1SD11 supports global requirements for safety interlock switches. The device ensures enhanced safety with high locking force and allows for multiple auxiliary release mechanisms including manual emergency, escape, and lock releases.

Applications include industrial automation, safety control in conveyors, machine tools, doors and access gates in manufacturing, as well as laboratory and commercial environments requiring reliable access management and hazard prevention.

Solenoid interlock switch designed for controlling access to machine doors and gates. Features power to unlock actuator, ensuring doors stay locked until authorized release. Metal housing provides durability and reliability in harsh environments.

Multiple auxiliary release options including manual emergency release mechanisms. Rated for 24V DC supply voltage with low power consumption of 3.5W. Supports one NO safety contact and one auxiliary contact for position monitoring.

IP67/IP66 ingress protection for high resistance to dust and water. Complies with UL, VDE, and CSA safety standards. Flexible mounting with actuator heads rotatable in 4 x 90° increments. Explore more industrial safety solutions by Siemens in the Solenoid Interlock Switch category on EnvMart.