Brava Metro EA Series Classroom Knob Set – 70 mm Backset
The Brava Metro EA Series Classroom Knob Set is a commercial-grade cylindrical lockset designed for educational and institutional environments. Featuring a classroom function, the outside knob can be locked or unlocked using a key while the inside knob remains free at all times.
This model uses a 70 mm backset and incorporates a LW5 profile 6-pin cylinder, making it suitable for integration into most restricted keying systems commonly used in Australian commercial sites.
Key Features
- Classroom function – outside knob key-lockable, inside knob always free.
- Commercial-grade cylindrical fixing.
- LW5 profile 6-pin cylinder.
- Incorporates the PD 8221 barrel.
- Compatible with most restricted keying systems.
- Supplied boxed with 2 keys.
Fire Rated
- Successfully tested up to 4 hours (depending on doorset configuration) on fire door assemblies in accordance with AS 1905.1-2005 Part 1 – Fire Resistant Doorsets.
Specifications
- Lock Type: Cylindrical knob set
- Function: Classroom
- Backset: 70 mm
- Door Thickness: 35 mm – 45 mm
- Rose Diameter: 75 mm
- Knob Projection: 69.5 mm (turnsnib not included)
- Latch: 70 mm
- Latch Faceplate: 57 mm × 25 mm
- Strike: 70 mm × 27 mm × 1.2 mm
- Cylinder: LW5 profile
- Door Handing: Non-handed

Available Finish Options
-
Antique Copper
EA3712AC70 -
Black
EA3012MB70 -
Polished Brass
EA3112PB70 -
Polished Stainless Steel
EA3812PSS70 -
Stainless Steel
EA3012SS70
Brava Metro EA Series Knob Sets – Item Code Family
Suitable Uses
- Classrooms and educational facilities.
- Commercial and institutional buildings.
- Fire-rated internal doorsets.
- Areas requiring controlled external locking with free internal egress.
Frequently Asked Questions
What does the classroom function mean?
The outside knob can be locked or unlocked with a key, while the inside knob is always free to operate.
Is this suitable for fire doors?
Yes. This knob set has been successfully tested on fire door assemblies in accordance with AS 1905.1.
Can it be keyed to an existing system?
Yes. The LW5 profile cylinder is compatible with most restricted keying systems.
Additional Information
- Commonly specified in Australian education projects.
- Non-handed design simplifies installation.
- Fire rating applies to compliant door and hardware assemblies.