SDC 55-A Uniflex Series Heavy ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$515.00
$347.97

SDC 55-A Uniflex Series Heavy Duty 3/4" Cylindrical Faceplate Electric Strike with Field Reversible Fail-Safe/Fail-Secure Operation

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Model: 55-AU
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$515.00
$347.97
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SDC Uniflex Series Heavy Duty 3/4"; Cylindrical Faceplate Electric Strike with Field Reversible Fail-Safe/Fail-Secure Operation

Professional Access Control Solution for Hollow Metal Frame Applications

The SDC Uniflex Series 55-A electric strike delivers heavy-duty access control for cylindrical locksets, mortise locksets with or without deadbolts, and mortise exit devices. Engineered with stainless steel components and a heavy cast housing body, this strike accepts 3/4"; throw latchbolts and up to 1"; throw deadbolts. The unit operates on 12/24 VDC with field selectable dual voltage capability and features field reversible fail-safe/fail-secure operation for flexible security configurations.

Professional Features & Benefits

  • Heavy-Duty Durability: Rated for 1,000,000 endurance cycles with 2500 holding force and 70 ft-lbs dynamic strength for demanding commercial applications.
  • Flexible Power Options: Field selectable dual voltage 12/24 VDC operation with voltage and current spike protection for reliable performance.
  • Fail-Safe/Fail-Secure Operation: Field reversible configuration allows adaptation to specific security requirements without hardware changes.
  • Universal Compatibility: Accepts 3/4"; throw latchbolts and up to 1"; throw deadbolts for use with cylindrical locksets, mortise locksets, and mortise exit devices.
  • Retrofit-Friendly Design: Fits existing ANSI 4-7/8"; strike preparation with no centerline relocation required for easy installation.
  • Stainless Steel Construction: Stainless steel components and square corner faceplate provide corrosion and tamper resistance for long-term reliability.
  • Professional-Grade Certifications: UL 1034 Burglary-Resistant Electric Locking Mechanisms, UL 10C fire rated, and ANSI/BHMA A156.31 Grade 1 certified.
  • Advanced Features: Horizontal alignment adjustment, non-handed design, interchangeable faceplate system, and internally mounted solenoid with pigtail connectors.

Technical Specifications

  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Door Type: Hollow Metal
  • Dynamic Strength: 70 ft-lbs
  • Electronic: Yes
  • Endurance Cycles: 1,000,000
  • Holding Force: 2500
  • Latch Throw: 3/4";
  • Product Category: Electronic Access Controls
  • Product Group: Electronic Access Controls
  • Product Model: 55-A, 55-B, 55-C
  • Product Subgroup: Electric Strikes
  • Product Type: Electric Strikes
  • Product Voltage: 12/24 VDC
  • Series: 55 Series
  • Subcategory: Electric Strikes
  • Switch Device: SPDT

Professional Applications

  • Commercial Building Security Systems
  • Educational Institution Access Control
  • Healthcare Facility Security
  • Government and Municipal Buildings
  • Industrial Facility Access Points
  • Multi-Tenant Residential Properties
  • Retail Loss Prevention Systems

Why Choose SDC Quality?

SDC electric strikes deliver professional-grade reliability with stainless steel construction and heavy cast housing rated for 1,000,000 endurance cycles with 2500 holding force. UL 1034 burglary-resistant certification and ANSI/BHMA A156.31 Grade 1 rating ensure compliance with demanding security standards. Engineered for commercial applications where dependable access control performance is essential.

Manufacturer Resources

Product Specs

Subcategory:
Electric Strikes
Series:
55 Series
Dynamic Strength:
70 ft-lbs
Endurance Cycles:
1,000,000
Product Group:
Electronic Access Controls
Product Subgroup:
Electric Strikes
Product Type:
Electric Strikes
Latch Throw:
3/4"
Commercial/Residential:
Commercial
Electronic:
Yes
Door Type:
Hollow Metal
Holding Force:
2500
Product Model:
55-A, 55-B, 55-C
Product Voltage:
12/24 VDC
Switch Device:
SPDT
Product Category:
Electronic Access Controls
Department:
Door Hardware

SDC 55-AU – Frequently Asked Questions

How fast can I get the SDC 55-AU 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 55-AU come with a warranty?
Absolutely. The SDC 55-AU 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 55-AU?
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 55-AU 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.