STI KIT-UB-1C Contact Assembly for UB-1

Overview

The STI KIT-UB-1C is a contact assembly replacement component for the STI UB-1 lock/strike platform. Operating at 9VDC, it provides the electrical switching interface between an access control panel and the UB-1 strike mechanism — the contact closure that actually triggers the lock release when an authorized credential is presented. Use this when upgrading an existing UB-1 installation, replacing worn contacts, or expanding a multi-door access control system with additional UB-1 units.

Compatibility

The KIT-UB-1C is designed exclusively for STI UB-1 lock/strike systems. Verify your installed UB-1 model and electrical specifications before ordering — this assembly requires 9VDC supply and operates within the voltage and current limits of the host access control panel. It integrates into standard commercial door strikes and electric locks used in retail, office, warehouse, and institutional access control deployments.

Installation Notes

Verify that your access control panel supplies adequate 9VDC current to support the UB-1 strike load before wiring. Confirm door strike mounting and alignment with the door frame — improper strike positioning will prevent proper latch engagement regardless of electrical function. When replacing contacts in an existing system, disconnect power and verify the old assembly is fully removed before installing the new KIT-UB-1C to avoid electrical shorts or panel damage.