Sdc 441U Momentary Spdt Red Mushroom Push Button Switch

Product Description

The SDC - SECURITY DOOR CONTROLS 441U is a momentary action single-pole double-throw (SPDT) push button switch featuring a red mushroom-style actuator head. Designed for access control and door hardware applications, this switch provides a reliable momentary contact signal when pressed and returns to its default position upon release. The oversized red mushroom head measures 2.625 inches, making it easy to locate and actuate in both standard and high-traffic entry and egress environments. It is typically installed by licensed electricians or low-voltage access control technicians working on commercial door hardware systems.

The 441U is suited for commercial and light industrial access control installations where a clearly visible, tactile push button is required to trigger an electric strike, magnetic lock release, or similar door hardware device. The red mushroom actuator is commonly used in exit request stations, emergency door release points, and access control panels. This switch falls within the exit devices and push buttons product category, making it a standard component in commercial egress and entry control systems.

Key Features

• Momentary action operation returns switch to default state upon release
• SPDT contact configuration supports both normally open and normally closed circuit wiring
• Large red mushroom actuator head at 2.625 inches for high visibility and easy actuation
• Sold individually as a single unit for straightforward replacement or new installation
• Applicable to exit devices and push button control applications in commercial door hardware systems

Compatibility

Designed as an OEM-style replacement or new installation component for commercial access control and exit device push button applications requiring a momentary SPDT switch.

Installation Notes

Installation should be performed by a licensed electrician or qualified low-voltage access control technician in accordance with applicable NEC requirements. Disconnect and de-energize all circuits at the panel before removing or installing the switch. Verify contact configuration (normally open vs. normally closed) against the door hardware control panel wiring diagram prior to making connections. Do not apply voltage exceeding the switch rating to avoid damage to the contacts or connected access control equipment.