Camden Door Controls CM-420B Single Gang Push Button

Product Description

The Camden Door Controls CM-420B is a single-gang momentary push button designed for access control and egress applications. It provides both normally open (N/O) and normally closed (N/C) contact outputs in a compact, single-gang form factor. This unit is used to trigger electric door strikes, magnetic locks, and access control panels in commercial and institutional installations. Licensed electricians and low-voltage access control technicians are the primary installers. The CM-420B fits a standard single-gang electrical box, making integration into new construction and retrofit projects straightforward.

The CM-420B is suited for interior door control applications in commercial buildings, offices, healthcare facilities, and institutional environments. It serves as a request-to-exit (REX) or door release button wired into an access control system. The N/O and N/C contact configuration gives installers flexibility to match the wiring logic required by the connected locking hardware or access control panel. It is sold as a single unit and is appropriate for any application requiring a clean, low-profile push button on a standard gang box.

Key Features

• Single-gang form factor fits standard electrical gang boxes for easy installation
• Provides both N/O and N/C contact outputs for wiring flexibility
• Momentary contact operation suitable for door release and request-to-exit applications
• Compact design suited for commercial and institutional access control systems

Compatibility

Designed as an OEM-style replacement or new-installation push button for single-gang access control and egress applications. Suitable for use with electric strikes, magnetic locks, and access control panels that accept dry-contact N/O or N/C inputs.

Installation Notes

Installation should be performed by a licensed electrician or certified low-voltage access control technician in accordance with applicable NEC requirements. Power to the access control panel and any connected locking hardware must be shut off before wiring the device. Mount to a standard single-gang electrical box and verify N/O or N/C wiring matches the input logic of the connected panel or lock controller. Do not exceed the contact rating of the device when wiring to high-current loads.