George Risk Industries 8484 1-Inch SPST-NO Switch Set

Provide a normally open switching point for a protected opening with the George Risk Industries 8484-TWG-BL switch set. Its SPST-NO contact arrangement supports alarm circuits that require a single-pole, single-throw normally open state. The specified 1 inch gap gives installers a defined operating separation to account for the placement of the switch and its matching actuator at the opening. Terminal connections provide a direct field-wiring interface for alarm cable conductors. That connection method is useful where a contact must be landed into a wired security zone rather than connected through a pre-attached lead. The switch set fits perimeter-protection applications at doors, windows, cabinets, access panels, and similar monitored openings where the physical alignment of the two contact elements can be maintained during normal operation. Within the 8484 contact range, this configuration combines an SPST-NO circuit, terminal connection method, 1 inch gap specification, and black color designation. Verify the required alarm-panel zone configuration before installation: the contact state must match the panel programming and the intended normal condition of the protected opening. Position and test the contact assembly at the actual installed gap, including any movement or tolerance of the door, window, panel, or frame.