Corbin Russwin ML2057 PSA Storeroom Mortise Lock, PS Lever, A Rose in Bright Brass (605)

Corbin Russwin ML2000 Series

Corbin Russwin ML2057 PSA Storeroom Mortise Lock, PS Lever, A Rose

ANSI F07 ml2057 storeroom or closetANSI/BHMA Grade 13 Hours fire rated2-3/4 Inch backset
$1,027.99 each
SKU ML2057 PSA 605

Finish: Bright Brass (605)

Faded finishes are special order.

Configuration: Standard

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  • Technical support on every order: 346-777-3031
Corbin Russwin ML2057 PSA Storeroom Mortise Lock, PS Lever, A Rose Bright Brass (605), Standard $1,027.99

Overview

About this product

This storeroom mortise lock pairs Corbin Russwin's Princeton lever with the A wrought rose, which is what the PSA suffix in ML2057 PSA stands for. The ANSI F07 function suits supply rooms, electrical closets and other doors that should be locked whenever they are closed.

Specs include ANSI/BHMA Grade 1, a 3 hour fire rating (UL10c), a 2-3/4 inch backset for 1-3/4 inch doors, and a 3/4 inch latch throw. It is listed as ADA compliant and BAA qualified.

What the function does

The outside lever is always rigid, so entry from outside always takes a key. The inside lever is always free and retracts the latchbolt. An auxiliary latch deadlocks the latchbolt.

Highlights

  • Outside lever always rigid: key required from outside
  • Inside lever always free
  • Door is locked whenever it closes
  • Princeton (PS) 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

Photo shows the Satin Brass (606) and Satin Bronze (612) and Dark Bronze (613) and Dark Bronze (613E) and Satin Nickel (619) 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

Storeroom function, ANSI F07

The outside lever is always locked and only a key opens it. The inside lever is always free, so nobody gets locked in. Common on storage, mechanical and janitor rooms.

Outside lever Always locked. Turn the key to open, then the door relocks when the key is removed.
Inside lever Always free. Anyone inside can leave without a key.

Specifications

Model
ML2057 PSA
Function
ML2057 Storeroom or closet, ANSI F07
Grade
ANSI/BHMA Grade 1
Series
ML2000
Lever
Princeton
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
2-1/2 Inch
Warranty
10 Year Limited on Lockset. 2 Year Limited on Electronic Components
Buy American Act
Yes
Finish
Bright Brass (605)
SKU
ML2057 PSA 605
Not sure it fits your door?

Send a photo of the door edge and the hardware on it. We'll match the part.

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Common questions

Does the storeroom lock ever stay unlocked?

No. The outside lever is always rigid, so the door can only be opened from outside with a key.

Can people inside get out?

Yes. The inside lever is always free and retracts the latchbolt.

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.

Before you order

Lock functions Passage, privacy, storeroom, classroom Which function each room needs, and what the ANSI numbers mean.
Keying IC cores and keyways explained Conventional, FSIC and SFIC, and when to order less cylinder.
Finishes US finish codes decoded US26D, US32D, US10B and the rest, matched to BHMA numbers.
Handing How to determine door handing LH, RH, LHR, RHR, worked out from where you stand.

Buying for a whole job?

Send the hardware schedule or drawing. Door, frame and hardware quoted together so nothing shows up missing.