Von Duprin 33A-NL-OP-313-3 -L/TRIM-388-SP Opaque Switch Processor, 3-L, Trim 388

Optimize exit-door monitoring and access control with the Von Duprin 33A-NL-OP-313-3 -L/TRIM-388-SP Opaque Switch Processor. Designed for exit door bars, this switch processor delivers dependable monitored status signals so security teams and building managers can quickly verify door position and egress activity. The product’s 3-L configuration supports multi-point sensing, helping reduce nuisance alarms while providing clearer diagnostics during maintenance.

Engineered for straightforward installation and retrofit projects, the unit is Trim 388-compatible and aligns with common exit bar aesthetics and mounting requirements. As part of Von Duprin’s suite of exit hardware solutions, it integrates cleanly with access control platforms, alarm panels and surveillance systems to centralize event monitoring and streamline incident response. Whether you need reliable egress monitoring for commercial, institutional or healthcare facilities, this switch processor supports safer, code-compliant operation and easier system management. Add the Von Duprin Opaque Switch Processor to your security infrastructure to enhance monitoring, reduce service calls, and ensure dependable emergency egress. Contact your supplier to specify the 33A-NL-OP-313-3 -L/TRIM-388-SP for your next access control or exit hardware upgrade.

• Provides reliable monitored egress status for exit door bars, improving safety and compliance with life-safety requirements
• 3-L configuration supports multi-point monitoring to reduce false alarms and simplify troubleshooting
• Compatible with Trim 388 hardware for seamless retrofits and consistent door aesthetics
• Integrates easily with access control, security and surveillance systems to centralize monitoring and event logging
• Built to Von Duprin standards for durable, low-maintenance performance that minimizes downtime and service calls