Corbin Russwin ML2000 Series
Corbin Russwin ML2055 NSA CL6 Classroom Mortise Lock, NS Lever, A Rose, LFIC Prep
Finish: Satin Bronze (612)
Faded finishes are special order.
Configuration: Standard
- Door to door shipping
- Technical support on every order: 346-777-3031
Overview
About this product
This classroom mortise lock pairs Corbin Russwin's Newport lever with the A wrought rose, which is what the NSA suffix in ML2055 NSA stands for. The ANSI F05 function suits school classrooms, training rooms and offices where only key holders should control the lock.
Built to ANSI/BHMA Grade 1, the lock is UL10c listed with a 3 hour fire rating. It is made for 1-3/4 inch doors at a 2-3/4 inch backset, throws the latch 3/4 inch, and is listed as ADA compliant under A117.1.
This CL6 version is prepared for a large format interchangeable core (LFIC), so it can be keyed into a facility's interchangeable core system.
What the function does
Only a key, used from the corridor side, locks or unlocks the outside lever. When it is unlocked, both levers retract the latchbolt. When it is locked, entry takes a key, and the lever stays locked until a key unlocks it. The inside lever always works, and an auxiliary latch deadlocks the latchbolt.
Highlights
- Outside lever locked and unlocked by key from outside
- Outside lever stays locked until unlocked by key
- Inside lever always free
- Newport (NS) lever on A wrought rose trim
- Grade 1 lockbody with UL10c listing and 3 hour fire rating
- 2-3/4 inch backset for 1-3/4 inch doors
- CL6 prep for large format interchangeable core
Photo shows the Bright Brass (605) and Satin Brass (606) and Satin Bronze (612) and Dark Bronze (613) and Dark Bronze (613E) and Satin Nickel (619) and Bright Chrome (625) and Satin Chrome (626) and Satin Stainless Steel (630) and Black Suede (BSP) finish. Other finishes are the same product in the finish you select.
How it works
Classroom function, ANSI F05
A key in the outside lever locks or unlocks it. The inside lever is always free, so nobody gets locked in. Common on classrooms and meeting rooms.
Specifications
- Model
- ML2055 NSA
- Function
- ML2055 Classroom, ANSI F05
- Grade
- ANSI/BHMA Grade 1
- Series
- ML2000
- Lever
- Newport
- Trim
- A-Wrought Rose
- Door thickness
- 1-3/4 Inch
- Backset
- 2-3/4 Inch
- Latch throw
- 3/4 Inch
- Latch face
- 8" x 1-1/4" x 3/32"
- Strike
- ANSI-Straight Lip
- Fire rating
- 3 Hours
- UL listing
- UL10c
- ADA compliant
- Yes
- Standards
- ANSI/BHMA A156.13 Series 1000, Operational and Security Grade 1, A117.1 Accessibility Code; UL Listed
- Projection
- 2-5/8 Inch
- Warranty
- 10 Year Limited on Lockset. 2 Year Limited on Electronic Components
- Buy American Act
- Yes
- Finish
- Satin Bronze (612)
- SKU
- ML2055 NSA 612 CL6
Send a photo of the door edge and the hardware on it. We'll match the part.
Send a photoCommon questions
How is the classroom function locked?
With a key in the outside cylinder. There is no inside locking control on this function.
Can students lock themselves in or out?
The lock state is set with a key from outside, and the inside lever is always free, so the door can always be opened from inside.
What door thickness and backset does it need?
It is made for 1-3/4 inch thick doors with a 2-3/4 inch backset, using a mortise pocket for the ML2000 Series lockbody.
Can it go on a fire-rated door?
The specifications list a 3 hour fire rating with UL10c listing. Confirm the rating needed on the door's label.
Which finishes are available?
Finish options include 605, 606, 611, 612, 613, 626, 630 and others; choose the one that matches your other hardware.
What does CL6 mean?
CL6 indicates the lock is prepared for a large format interchangeable core, so it works with LFIC keying systems.
Before you order
Buying for a whole job?
Send the hardware schedule or drawing. Door, frame and hardware quoted together so nothing shows up missing.