Marks USA MAR195RFEU 195RFEU IC Electrically Unlocked Lever Lockset — Grade 1 Survivor Series, Fail Secure, 3-Hour Fire Rated

Marks USA 195RFEU IC Electrically Unlocked Lever Lockset — Grade 1 Survivor Series, Fail Secure, 3-Hour Fire Rated

The Marks USA 195RFEU is a Grade 1 IC (Interchangeable Core) Electrically Unlocked Lever Lockset from the Survivor Series, engineered for demanding commercial environments where durability and security are paramount. Featuring a fail-secure electric unlock function (FEU), this cylindrical lockset is built on a cast retractor chassis with bronze roller bearings, and supports door thicknesses from 1-5/8" to 1-7/8" (with optional K1904 spacer for 1-3/8" doors) and backsets of 2-3/8" and 2-3/4". The Survivor Series' unique stainless steel clutch mechanism disengages the levers from the retractor when locked, eliminating lever droop and dramatically reducing wear — enabling this lockset to exceed BHMA Grade 1 specifications by 300%, surpassing 3.6 million cycles. It is 3-Hour Fire Rated, ADA Compliant, and backed by a Marks Lifetime Mechanical Warranty.

Key Features

• Exceptional Cycle Durability: Exceeds BHMA Grade 1 specifications by 300% with over 3.6 million cycles tested, ensuring long-term reliability in high-traffic commercial applications.
• Unique Clutch Mechanism: Stainless steel clutch and bronze roller bearings disengage levers from the retractor when locked, eliminating lever droop and dramatically reducing wear and maintenance needs.
• Fail-Secure Electric Unlock (FEU): Electrically unlocked fail-secure operation keeps the lock secured upon power loss, ideal for access-controlled entry points requiring maintained security.
• Door Thickness & Backset Compatibility: Accommodates door thicknesses of 1-5/8" to 1-7/8"; use K1904 spacer for 1-3/8" doors. Available in 2-3/8" and 2-3/4" backsets.
• Latch Specifications: Latch #1834 with 1-1/8" x 2-1/4" front, 9/16" throw, and stainless steel nose for reliable latching performance.
• Solid Cast Zamac Levers: American-style levers constructed from solid cast zamac with 1/2" return, mounted on thru-bolted roses (3-7/16" dia.) with spring-loaded 2-#10 thru-bolts for secure attachment.
• Strike Included: Ships with Strike #1135, a 4-7/8" ASA curved lip strike for standard door frame compatibility.
• 3-Hour Fire Rated: Certified for 3-hour fire-rated door assemblies, supporting life-safety compliance in commercial buildings.
• ADA Compliant: Lever design meets ADA accessibility requirements for commercial door hardware applications.
• Marks Lifetime Mechanical Warranty: Backed by Marks USA's Lifetime Mechanical Warranty for long-term confidence and protection.

Certifications & Compliance

• ANSI/BHMA Grade 1 — Exceeds by 300% (3.6 million cycles)
• UL Listed
• 3-Hour Fire Rated
• ADA Compliant
• Marks Lifetime Mechanical Warranty

Technical Specifications

• Series: 195 Series
• Product Group: Mechanical Locks
• Product Subgroup: Bored Locksets
• ANSI/BHMA: ANSI/BHMA, UL Listed
• Commercial/Residential: Commercial
• Function Description: Latch retracted by knobs/levers at all times
• ADA Compliant: Yes
• Keyed: No
• ANSI Function: F75
• Product Function: Passage/Hall/Closet
• Latch Type Specification: Deadlocking
• Product Category: Mechanical Locks
• Department: Door Hardware

Typical Applications

• Commercial Office Buildings with Access-Controlled Entry Points
• Educational Facilities — Classroom and Corridor Doors
• Healthcare Institutions Requiring Fail-Secure Access Control
• Government and Municipal Buildings
• Retail Establishments with Secured Back-of-House Access
• Multi-Tenant Residential and Mixed-Use Properties
• Industrial and Warehouse Facilities with High-Traffic Doors

Why Marks USA 195RFEU?

Marks USA Survivor Series locksets are engineered to outlast standard commercial hardware, with a proprietary stainless steel clutch and bronze roller bearing chassis that exceeds BHMA Grade 1 durability requirements by 300% — surpassing 3.6 million cycles. The 195RFEU combines this proven mechanical platform with fail-secure electric unlock functionality, 3-hour fire rating, and ADA compliance, making it a professional-grade solution for the most demanding commercial door hardware applications.