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

SDC Uniflex Series 55-D Heavy Duty 3/4"; Mortise Electric Strike with Field Reversible Fail-Safe/Fail-Secure Operation

Professional Access Control Solution for Hollow Metal Frame Applications

The SDC Uniflex Series 55-D electric strike delivers heavy-duty access control performance for cylindrical locksets, mortise locksets with or without deadbolts, and mortise exit devices. Engineered with a 3/4"; latchbolt capacity and up to 1"; deadbolt throw accommodation, this strike features field selectable dual voltage operation at 12/24 VDC with field reversible fail-safe/fail-secure functionality. The stainless steel construction and heavy cast housing provide exceptional durability rated for 1,000,000 endurance cycles with 2500 holding force and 70 ft-lbs dynamic strength.

Professional Features & Benefits

• Heavy-Duty Durability: Tested to 1,000,000 endurance cycles with 2500 holding force and 70 ft-lbs dynamic strength for reliable performance in high-traffic commercial applications.
• Flexible Power Options: Field selectable dual voltage operation at 12/24 VDC with voltage and current spike protection for versatile system integration.
• Fail-Safe/Fail-Secure Operation: Field reversible configuration allows adaptation to specific security requirements with SPDT switch device functionality.
• Heavy-Duty Construction: Stainless steel components with heavy cast housing body and keeper provide exceptional durability and corrosion resistance.
• Universal Compatibility: Accepts 3/4"; throw latchbolts and up to 1"; throw deadbolts with interchangeable faceplate design for various lock configurations.
• Retrofit-Friendly Installation: Designed to retrofit existing ANSI 4-7/8"; strike prep without centerline relocation for easy upgrades.
• Professional Certifications: UL 1034 Burglary-Resistant Electric Locking Mechanisms, UL 10C Positive Pressure Fire Tests, and ANSI/BHMA A156.31 Grade 1 certified.
• Tamper-Resistant Design: Internally mounted solenoid with corrosion and tamper resistant construction ensures secure operation.

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-D
• 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 strike products deliver professional-grade reliability with stainless steel construction and heavy cast housing rated for 1,000,000 endurance cycles with 2500 holding force capacity. UL 1034, UL 10C, and ANSI/BHMA A156.31 Grade 1 certifications ensure compliance with the highest industry standards. Engineered for demanding commercial applications where dependable access control performance is essential.