{"product_id":"sdc-441u-momentary-spdt-red-mushroom-push-button-switch","title":"Sdc 441U Momentary Spdt Red Mushroom Push Button Switch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe 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.\u003c\/p\u003e\u003cp\u003eThe 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.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMomentary action operation returns switch to default state upon release\u003c\/li\u003e\n\u003cli\u003eSPDT contact configuration supports both normally open and normally closed circuit wiring\u003c\/li\u003e\n\u003cli\u003eLarge red mushroom actuator head at 2.625 inches for high visibility and easy actuation\u003c\/li\u003e\n\u003cli\u003eSold individually as a single unit for straightforward replacement or new installation\u003c\/li\u003e\n\u003cli\u003eApplicable to exit devices and push button control applications in commercial door hardware systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or new installation component for commercial access control and exit device push button applications requiring a momentary SPDT switch.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation 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.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eActuator Style\u003c\/strong\u003e: Mushroom\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActuator Color\u003c\/strong\u003e: Red\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActuator Diameter\u003c\/strong\u003e: 2.625 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact Type\u003c\/strong\u003e: SPDT (Single-Pole Double-Throw)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAction Type\u003c\/strong\u003e: Momentary\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Each\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity Per Unit\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SDC - SECURITY DOOR CONTROLS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 441U\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SDC","offers":[{"title":"Default Title","offer_id":51562397466930,"sku":"441U","price":355.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f20b1d89514a812e01465989988c289d.jpg?v=1786476323","url":"https:\/\/voomisupply.com\/products\/sdc-441u-momentary-spdt-red-mushroom-push-button-switch","provider":"Voomi Supply","version":"1.0","type":"link"}