Alarm Controls Corporation KA-107ANC Key Switch Nc Spst

Product Description

The Alarm Controls Corporation KA-107ANC is a key-operated switch configured as normally closed (N/C), single-pole single-throw (SPST), designed for surface or panel mount applications. It provides a secure, key-actuated means of opening a control circuit, making it suitable for access control, security, and building automation systems. Licensed electricians and security integrators typically specify this type of switch where a physical key is required to interrupt or initiate a low-voltage control signal. The N/C configuration means the circuit is complete at rest and opens when the key is turned.

This key switch is used in commercial and light industrial access control installations, security panel applications, and building entry systems where tamper-resistant manual circuit control is required. It is appropriate for door release circuits, alarm bypass functions, and similar low-voltage switching tasks where a keyed override or authorization step is part of the system design. Surface or panel mounting makes it adaptable to a range of enclosure types and field conditions.

Key Features

• Normally closed (N/C) contact configuration opens circuit on key actuation
• Single-pole single-throw (SPST) switching for straightforward circuit control
• Key-operated actuation provides physical access authorization
• Designed for surface or panel mount installation
• Sold individually as a single unit

Compatibility

Designed as an OEM-style replacement or direct installation component for low-voltage access control and security systems requiring a key-operated N/C SPST switch.

Installation Notes

Installation is typically performed by a licensed electrician or qualified security systems integrator. De-energize the control circuit completely before wiring or replacing the switch. Follow applicable NEC requirements for low-voltage control wiring in the jurisdiction of installation. Do not exceed the rated electrical limits of the switch when connecting to control panels or alarm circuits.