SDC 440 Series Large Mushroom ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$239.00
$201.03

SDC 440 Series Large Mushroom Button Emergency Exit Switch with 2-5/8" Diameter Heavy Duty Design

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Model: 442U
$239.00
$201.03
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$239.00
$201.03
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SDC 440 Series Large Mushroom Button Emergency Exit Switch with 2-5/8"; Diameter Heavy Duty Design

Heavy-Duty Emergency Exit and Panic Alarm Switch Solution

The SDC 440 Series large mushroom button switch features a conspicuous 2-5/8"; diameter mushroom button designed for heavy duty industrial applications. This weather-resistant switch assembly incorporates a heavy duty steel bezel around the button to guard against abuse and provides easy activation for emergency egress and panic alarm applications. The large double gang assembly stands out for persons without prior knowledge of egress operation, making it ideal for high-frequency use in commercial environments.

Professional Features & Benefits

  • Large Mushroom Button Design: 2-5/8"; diameter mushroom button provides highly visible and easy-to-activate emergency operation for reliable egress control.
  • Heavy-Duty Construction: Industrial-grade design with heavy duty steel bezel guards against impact and abuse in demanding commercial applications.
  • Weather-Resistant Operation: Water-resistant contacts ensure reliable performance in various environmental conditions and outdoor installations.
  • Flexible Power Options: 12/24VDC operation accommodates various access control system voltage requirements for versatile integration.
  • Multiple Switch Configurations: Available in momentary and alternate action models including DPST configurations for diverse application needs.
  • Professional Installation: Screw terminal wire connections provide secure electrical connections for reliable long-term operation.
  • High-Visibility Design: Red button standard with conspicuous large format ensures immediate recognition in emergency situations.

Technical Specifications

  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Electronic: Yes
  • PDF:SDC Full Catalog: https://zensupply.com/content/pdf/lcn/CondensedHardwareBrochure
  • Product Category: Electronic Access Controls
  • Product Group: Electronic Access Controls
  • Product Model: 440
  • Product Subgroup: Sensors, Switches, Relays and Timers
  • Product Type: Push Buttons Switches
  • Product Voltage: 12/24VDC
  • Series: 440 Series
  • Subcategory: Push Buttons Switches

Professional Applications

  • Commercial Building Emergency Exit Systems
  • Industrial Facility Panic Alarm Stations
  • Healthcare Institution Emergency Response
  • Educational Facility Safety Systems
  • Retail Emergency Exit Compliance
  • Warehouse and Distribution Center Safety
  • Government and Municipal Emergency Systems

Why Choose SDC Quality?

SDC 440 Series mushroom button switches deliver professional-grade reliability with heavy duty steel construction and weather-resistant contacts designed for high-frequency use in demanding commercial applications. The industrial-grade design with impact-resistant bezel ensures dependable emergency activation when reliability is critical. Engineered for commercial environments where immediate emergency response and long-term durability are essential.

Manufacturer Resources

Product Specs

Series:
440 Series
Subcategory:
Push Buttons Switches
Product Group:
Electronic Access Controls
Product Subgroup:
Sensors, Switches, Relays and Timers
Product Type:
Push Buttons Switches
Commercial/Residential:
Commercial
Electronic:
Yes
Product Model:
440
Product Voltage:
12/24VDC
Product Category:
Electronic Access Controls
Department:
Door Hardware

SDC 442U – Frequently Asked Questions

How fast can I get the SDC 442U delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the SDC 442U come with a warranty?
Absolutely. The SDC 442U is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the SDC 442U?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the SDC 442U from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.