Alarm Controls Corporation TS-21B Mushroom Push Button

Product Description

The ALARM CONTROLS CORPORATION TS-21B is a black mushroom-head push button switch designed for access control and security applications. With a 2.5-inch mushroom-style actuator, it provides a large, easily activated surface for door release, entry control, or emergency egress systems. The TS-21B includes both a normally open (NO) and normally closed (NC) contact configuration, giving installers flexibility to integrate the switch into a wide range of control circuits. It is a single-unit component sold individually and suited for professional installation in commercial and light industrial environments.

This push button is commonly used in access control panels, door release stations, and security entry points. The mushroom-head form factor makes it well suited for high-visibility, easy-actuate mounting locations such as lobby exits, server room doors, and controlled-access gates. The dual-contact output supports both latch-release and alarm-trigger wiring configurations within the same device, reducing the need for additional hardware in many installations.

Key Features

• 2.5-inch black mushroom-head actuator for high-visibility, easy operation
• Dual-contact output: one normally open (NO) and one normally closed (NC)
• Compact single-unit design sold individually
• Suitable for access control, door release, and security egress applications
• Black finish integrates cleanly into commercial door hardware installations

Compatibility

Designed as an OEM-style push button for use in commercial access control and exit device wiring systems. No specific compatible model numbers were provided in the product data.

Installation Notes

Installation is typically performed by a licensed electrician or certified access control technician. Disconnect power to the control panel and any connected door hardware before wiring. Follow NEC guidelines for low-voltage control wiring and verify contact polarity with a multimeter before energizing the circuit. Confirm the NO and NC contact assignments match the control panel input requirements before completing installation.