Aiphone RY-1824L Door Interface Relay, (Replaces RY-18L)

Ensure reliable door control and protect your intercom hardware with the Aiphone RY-1824L door interface relay. This purpose-built relay module interfaces between Aiphone master stations or CEUs and the door release mechanism, taking load and surge stress off built-in contacts so your electric strikes and magnetic locks operate consistently. The RY-1824L uses a Form C relay and supports an 18–24V DC operating range, offering both normally open and normally closed outputs for flexible door control logic.

Designed for commercial security and access control installations, the RY-1824L is recommended for AX, KB, JF, JO and JP series systems (compatible with JP-4MED, KB-3MRD, JO-1MD and AX-084C/AX-248C/AX-320C). Its higher contact rating ensures compatibility with a wide range of door hardware while the compact footprint simplifies integration into existing intercom, surveillance and monitoring deployments. TAA and NDAA compliance makes it suitable for government and enterprise projects. Add the Aiphone RY-1824L to your intercom or access control system to improve reliability and protect equipment—order now for secure, dependable door release performance.

• Protects master station contacts and prevents surge damage by switching door release load through a higher-rated relay
• Form C relay optimized for 18–24V DC intercom systems to reliably drive electric strikes and magnetic locks
• Provides both normally open (NO) and normally closed (NC) outputs for flexible door control configurations
• Compact, rack- and panel-friendly footprint that integrates easily with AX, JO, JP and KB series systems
• TAA and NDAA compliant for government and enterprise procurement, simplifying spec compliance