Dortronics 48501 48500 Series Field Configured Interlock Controller User Programmable PLC Interlock, Powered in Enclosure

Optimize secure entry and workflow control with the Dortronics 48501 PLC interlock controller from the 48500 Series. This field-configured interlock controller delivers on-site flexibility with field-selectable door sequences and a user-programmable PLC, letting integrators and facilities managers adapt logic for multi-door interlocks, mantraps, and controlled environments without custom firmware. The unit ships with an integrated power supply housed in a rugged enclosure, reducing install time and protecting electronics for continuous operation. Built to work with common access control systems, the 48501 supports seamless integration with surveillance and monitoring setups—improving situational awareness and reducing false alarms. Whether you need reliable door interlock logic for security, environmental isolation for labs and cleanrooms, or secure server room access, this controller balances configurability with durability. Choose Dortronics' 48501 to consolidate control, simplify installations, and enhance overall security posture. Add it to your access control design or contact our integration specialists to specify the unit for your application.

• Field-programmable door sequencing lets you tailor interlock workflows on-site for minimal downtime and precise access control
• User-programmable PLC logic simplifies configuration and reduces reliance on external controllers or custom coding
• Integrated power supply in a protective enclosure streamlines installation and protects critical components for reliable operation
• Designed to integrate with existing access control, surveillance, and monitoring systems to centralize security management
• Suitable for both security and environmental applications (cleanrooms, labs, server rooms) for flexible deployment