LOB 72/55 Fire Door Lock EI45 Left-Handed White Zinc for Wooden Doors

Product Overview

The LOB 72/55 (EI45) fire-resistant lock is designed for integration into left-handed fire doors constructed from wood or wood-derived materials, including models with glazing. Used primarily in commercial and institutional buildings where fire safety compliance is mandatory, it must be installed alongside an appropriate door closer to ensure automatic closure and secure locking in fire-rated environments.

The EI45 fire resistance rating distinguishes this lock, guaranteeing tested performance under fire exposure for at least 45 minutes. This provides building owners and facility managers with clear assurance for code-compliant fire door assemblies. The lock is particularly suitable for bulk procurement in large-scale refurbishment or new construction projects requiring certified hardware for fire-rated wood doors.

Key Features

• Fire resistance EI45 ? certified to withstand fire exposure for at least 45 minutes


• Left-handed configuration ? fits left-opening fire doors for tailored installation


• Compatible with door closers ? enables self-closing and compliant fire door operation


• White zinc finish ? corrosion-resistance for durability in demanding environments


• No strike plate included ? allows procurement flexibility based on project specifics


• Suitable for glazed doors ? compatible with wood and wood-derived doors with glass panels

Technical Specifications

• Lock Type: Mortise


• Configuration: Left-handed


• Fire Resistance: EI45


• Backset: 55 mm


• Center Distance: 72 mm


• Finish: White zinc


• Strike Plate: Not included


• Suitable Door Material: Wood, wood-derived, glazed

Applications

Designed for installation in fire-rated wooden or wood-derived doors, including glazed variants, across multi-residential, commercial, and institutional buildings. Used to meet legal fire-safety requirements in corridors, stairwells, and compartmentation zones. Suitable for doors requiring automatic closure and secure locking; applicable for bulk installation in code-compliant renovations and new constructions.

Packaging & Shipping

Standard export packaging. Unit includes lock body; mounting hardware and strike plate are not included and must be sourced separately.