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The ALARM CONTROLS CORPORATION TS-27R is a mushroom head push button switch designed for access control and security applications. This unit features a red mushroom-style actuator head mounted in a stainless steel housing and is configured with one normally closed (NC) contact and one normally open (NO) contact, providing versatile switching options in a single device. It is sold individually and is well suited for use by security integrators, electricians, and access control technicians working on door control, egress, or entry systems.
The TS-27R is typically installed in commercial and light industrial environments where a highly visible, easy-to-operate momentary switch is required. The red mushroom head provides a clear visual indicator for emergency release, door release, or controlled access points. It fits into standard electrical box cutouts and is appropriate for both new installations and retrofit projects in buildings requiring compliant egress hardware.
Designed as an OEM-style replacement or new-installation push button for commercial access control and egress systems requiring a momentary mushroom head switch with standard NC and NO contact outputs.
Installation should be performed by a licensed electrician or certified access control technician familiar with low-voltage wiring and local electrical codes, including applicable NEC requirements. Power down the access control panel and any connected door hardware before wiring the switch contacts. Verify NC and NO contact assignments against the control panel wiring diagram before energizing the circuit. Do not exceed the rated switching capacity of the contacts.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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