Adams Rite 91-0897-01 Replacement Door Hardware Component

The Adams Rite 91-0897-01 is a single-switch signal monitoring kit designed to add request-to-exit (REX) and pushbar monitoring capabilities to Adams Rite 3000 and 8000 Series exit devices. Featuring a single-pole, double-throw (SPDT) microswitch with normally open and normally closed wiring options, the kit detects pushbar activation and signals compatible access control equipment. It mounts beneath the pushbar near the hinge end and includes the monitor switch assembly, mounting screws, wire nuts, and installation instructions for field retrofitting existing exit devices.

Adams Rite 91-0897-01 Single SPDT Exit Device Monitor Switch Kit

The Adams Rite 91-0897-01 Monitor Switch Kit adds electrical pushbar monitoring and request-to-exit signaling to compatible Adams Rite 3000 and 8000 Series exit devices. The single-switch assembly detects mechanical pushbar movement and communicates activation to connected access control panels, security monitoring systems, or auxiliary signaling equipment. Its single-pole, double-throw (SPDT) contact configuration accommodates normally open and normally closed circuits, allowing the switch to signal different system conditions. Typical applications include electromagnetic lock release, authorized exit monitoring, and activation of external signal lights or audible alarms when the exit device pushbar is depressed.

The 91-0897-01 contains one SPDT monitoring switch positioned beneath the exit device pushbar near the hinge end. Pressing the pushbar changes the switch contact state, enabling connected equipment to recognize an exit request or initiate a programmed response. The normally open and normally closed contact options support integration with compatible access control controllers, magnetic lock release circuits, alarm monitoring inputs, and auxiliary signaling devices. The switch provides dry-contact signaling rather than powered lock operation, requiring connected equipment and external power sources to operate within the applicable electrical ratings. This configuration allows the mechanical exit device to communicate with electronic security systems without replacing the complete pushbar assembly.

The Adams Rite 91-0897-01 is designed for field installation on existing 3000 and 8000 Series exit devices, including compatible 8099 and 8099M pushbar assemblies. The retrofit kit includes one monitor switch assembly, mounting screws, wire nuts, and installation instructions for securing the switch and connecting its signal wiring. Installation places the switch within the pushbar mechanism so that normal bar movement activates the monitoring contacts. The compact internal arrangement preserves the existing exit device's mechanical operation while adding electrical monitoring capability. Installers must verify switch alignment, contact operation, and compatibility with the connected access control or alarm circuit before returning the opening to service.

The Adams Rite 91-0897-01 is the single-switch version of the manufacturer's exit device monitoring accessory, while the 91-0897-02 provides two monitoring switches for applications requiring redundant signaling or a second independently controlled circuit. The 91-0897-01 supports commercial access control installations where exit activity must be reported to security systems or coordinated with electromagnetic locking hardware. Unlike a complete alarm exit kit, this accessory adds monitoring contacts without incorporating a standalone alarm sounder or replacement pushbar. Its retrofit design allows existing Adams Rite exit devices to gain electronic monitoring functionality while retaining their original mechanical latching and egress operation. Installation must follow Adams Rite wiring instructions and applicable building and life safety requirements.