Accentra (Yale) 380AN Deadlatch, 5300LN Series, 2-3/4" Backset, 2-1/4" x 1-1/8" Face

The Accentra 380AN is a heavy-duty deadlatch component engineered for Yale's 5300LN series mortise locks, delivering Grade 1 security for commercial and institutional door applications. This deadlatch features a 2-3/4" backset and a 2-1/4" x 1-1/8" front face with a 1/2" bolt throw, designed to lock the main latchbolt automatically when the door closes without requiring key operation. Available in satin chrome (US26D), oil-rubbed bronze (US10B), and bright brass finishes, the 380AN provides reliable secondary locking on high-traffic commercial doors, office entrances, healthcare facilities, educational buildings, and government installations.

What is a deadlatch and how does it work on mortise locks

A deadlatch is a secondary locking mechanism that automatically secures the main latchbolt when a door closes, preventing the latch from being pushed back by a credit card or similar object. Unlike a primary latch that retracts with the key, the deadlatch engages independently as the door shuts. The Accentra 380AN provides this secondary security function within the Yale 5300LN lock body. When used in conjunction with the primary latching device, it creates a two-point locking system that exceeds standard Grade 1 security requirements for institutional applications. This dual-mechanism design is standard in Yale mortise locks for offices, schools, hospitals, and secure entry points.

Backset and face dimensions for mortise deadlatch installation

The 380AN's 2-3/4" backset accommodates standard door frame preparations on 1-3/4" thick doors. The 2-1/4" x 1-1/8" face dimensions coordinate with Yale 5300LN lock bodies and standard mortise lock cavity dimensions. The 1/2" bolt throw retracts fully into the latchbolt pocket when the door is opened. This deadlatch is non-handed and field-reversible, fitting both left-hand and right-hand swinging doors without modification. The heavy-gauge steel construction and precise machining ensure smooth operation through thousands of open and close cycles without wear, binding, or misalignment that could compromise security or create maintenance issues.

Grade 1 security and compatibility with Yale 5300LN mortise locks

As a component of the Yale 5300LN series mortise locks, the 380AN deadlatch meets ANSI/BHMA specifications for Grade 1 performance. The 5300LN series is specified in schools, government buildings, and commercial facilities where code compliance and institutional security standards apply. The deadlatch mechanism functions independently from the primary cylinder and latch assembly, meaning it continues operating even if the main latch becomes damaged or disabled. Finish options include satin chrome for institutional and commercial interiors, oil-rubbed bronze for historic or traditional buildings, and bright brass for premium aesthetic applications. All finishes are compatible with Yale mortise cylinders and Yale-standard 2160 cams.

Specifications and replacement deadlatch components

The 380AN is a field-replaceable component, allowing deadlatch repairs or upgrades without requiring lock body replacement. The deadlatch can be installed into existing Yale 5300LN locks or specified as part of new lock assemblies. Installation requires removal of the lock body's armor front plate and engagement of the deadlatch with the primary latch assembly inside the lock case. Standard hardware and mounting templates are included. The mechanism is sealed against dirt and moisture, making it suitable for both interior protected locations and exterior exposed areas where weather resistance matters. Optional backset variations and latchbolt configurations with greater throw are available to special order for non-standard door frames or frame thicknesses exceeding 1-3/4".

The Accentra 380AN deadlatch delivers institutional-grade secondary locking for Yale 5300LN series mortise locks across commercial and public facilities. Whether you're specifying new mortise locks or maintaining existing Yale hardware, this deadlatch component provides the Grade 1 security and BHMA-certified performance institutional applications demand. Explore our complete selection of Yale mortise lock components and hardware, or call 877-471-4870 for technical guidance on deadlatch specifications, installation procedures, and compatibility with your existing lock systems.