Comelit 909030055 512DC Access Controller with DIN Mount

Deliver reliable, scalable access control where it matters most. The Comelit 909030055 512DC Access Controller is a DIN-mounted door controller engineered for efficient two-door security, ideal for commercial, residential and multi-tenant installations. Built as an RS-485 serial controller, it integrates seamlessly with PAC Access Central and EasiNet Residential software, providing robust networking and monitoring capabilities for modern security and surveillance systems. Support for RS-232 and RS-485 communications ensures dependable connectivity to readers and host systems, while the onboard capacity for up to 20,000 keyholder records gives you the room to grow without performance trade-offs. Hardware safeguards include a 3A thermal fuse protecting lock relays and built-in local anti-passback to reinforce site-level policies and reduce tailgating. The DIN mount is specifically designed to fit PAC DIN enclosures (p/n 10031 and 10032), simplifying installation and serviceability. For integrators and security managers seeking a compact, reliable access controller with strong networking and monitoring compatibility, the Comelit 512DC is a practical choice — contact us to specify or order for your next access control deployment.

• Simplifies installation with DIN-mount design that fits PAC enclosures for fast, tidy deployments
• Scales to large sites with up to 20,000 keyholder records for high-density user management
• Protects locks and reduces downtime with 3A thermal fuse protection on lock relays
• Enables secure two-door operation with local anti-passback to prevent credential misuse
• Integrates into security networks via RS-232/RS-485 for PAC Access Central or EasiNet monitoring