TownSteel MSE-W Series Intruder Latch Bolt Function - Heavy Duty Wide Escutcheon Mortise Lock, Double Cylinder

Intruder function means the room can be locked down from inside without anyone stepping into the corridor. The MSE-W is a double cylinder lock, so there is a keyed cylinder on both faces and the door can be secured from either side with a key. That is the classroom-lockdown setup schools and clinics specify. If you want a lock that is always locked outside and free egress inside instead, a storeroom function such as the Cal-Royal NM8080 is the plainer choice.

It should. The MSE-W runs a 2-3/4 inch backset with a 3/4 inch projection stainless steel split anti-friction latch bolt, and it ships with an ANSI strike in plated or stainless steel. The faceplate is 1-1/4 by 8 inches stainless. If your door already has a standard ANSI mortise pocket and 2-3/4 backset, it drops in; a 2-1/2 inch backset body like the Baldwin 6301 will not line up with the same prep.

The escutcheon measures 10-9/16 x 2-3/8 x 9/32 inches in brass, so you need a flat stile face at least a bit wider than 2-3/8 inches to seat it without running onto glass stops or a narrow aluminum stile. On narrow stile aluminum openings, this is the wrong trim style.

Yes, handing is a required selection: LH, RH, LHR, or RHR. Stand outside the door, note which side the hinges are on and whether the door swings toward you (reverse) or away. Get it wrong and the lever and latch face the wrong way.

Yes. Keying is a required choice at order: keyed different (standard), keyed alike for multiple locks, or a special key code you enter. If your facility runs a small format interchangeable core system, order the SFIC prep less core version and drop your own cores in.

The MSE-W Series is a heavy duty Grade 1 mortise lock built for the intruder function. The nearest match on function and duty level is the BEST 45HCAINL, a heavy duty mortise lockbody also built for the intruder function. The difference is scope: the MSE-W is supplied as a complete assembly with wide brass escutcheon trim measuring 10-9/16 inches by 2-3/8 inches by 9/32 inch and a choice of Artistic, Congr, Gala, Imperial, Quest, Regal, Sentinel or Tango levers, while the BEST 45HCAINL is a lockbody. Both carry a 2-3/4 inch backset on the TownSteel side, so verify the BEST body's backset against your door prep.

The TownSteel MSE-W is a mechanical, non-electronic lock, though it is prepared for access control integration and offers optional REX, privacy, door ajar and mechanical key override status sensors. For a powered lock body, the BEST 45HW is a wired electromechanical mortise lock running 12V or 24V, and the Command Access ML190 is a heavy-duty motorized mortise storeroom lock with field selectable fail-safe or fail-secure operation on 24VDC. The Schlage L9092EU with 03A trim is a heavy duty electric lock/unlock outside lever mortise lock, keyed outside, with request to exit, for 1-3/4 inch doors.

Standard ships as a conventional keyed cylinder ready to use. SFIC prep, less core arrives machined for a small format interchangeable core but with no core in it, so you supply cores in your own keyway. Institutions already standardized on an SFIC system take the second; a single opening replacement usually takes the standard.

It is an ANSI Grade 1 heavy duty commercial mortise lock, which is the top durability tier for door hardware and what you want on doors cycled all day. Latch bolt, guard bolt, faceplate and rocker type stop works are all stainless steel; levers are forged brass or cast zinc plated to match the finish.

No power required. The MSE-W is a mechanical mortise lock, key operated on both sides with a brass thumb turn (Classic Visible standard). If you need access control at the opening, look at an electrified mortise such as the BEST 45HW wired 12V/24V lock or the Command Access ML190 motorized 24VDC body.

Same Grade 1 mortise class, different functions: the Corbin Russwin ML2003 is a classroom lockset for 1-3/4 inch doors, the Cal-Royal NM8070 is classroom and NM8050 office/entrance with auxiliary deadlatch, and the Accentra 8805FL is a storeroom lock. For a lock body only with intruder function, the BEST 45HCA heavy duty mortise lockbody carries the same intruder function as the MSE-W.

No. The MSE-W is a keyed double cylinder mortise lockset with a lever-operated 3/4 inch projection stainless steel latch bolt, an anti-friction split latch, a guard bolt, and rocker type stop works. The Sargent 4874 is a double cylinder mortise deadbolt on a 2-3/4 inch backset - deadbolt only, with no latch and no lever trim. Use the 4874 as auxiliary bolt hardware alongside a latching device, not as a replacement for a complete intruder lockset.

The TownSteel MSE-W is a keyed double cylinder lock. If the opening only needs latching without keying, the Falcon MA101 is a Grade 1 heavy duty mortise passage lock with field reversible operation and a fire rating, and the Schlage PM010 is a Grade 1 non-keyed passage latch mortise lock for 1-3/4 inch doors. For escutcheon trim similar in look to the MSE-W, the Hager 3810E is a passage mortise lock with escutcheon on a 2-3/4 inch backset for doors 1-3/4 to 2-1/2 inches thick - the same backset the MSE-W uses.

They share the double cylinder keying concept but not the opening. The Marks USA 21AC is an entrance double cylinder Unilock ornamental iron mortise lock with a round knob, listed for 1 inch door thickness - that is ornamental iron gate and narrow stile territory. The TownSteel MSE-W is a Grade 1 heavy duty commercial mortise lockset with wide brass escutcheon trim, a 2-3/4 inch backset, a 1-1/4 inch by 8 inch stainless faceplate and lever trim. They are not interchangeable in the same door prep.

The MSE-W is a Grade 1 heavy duty mortise lock built for intruder function. For storeroom function at the same grade, the Accentra 8805FL is a Grade 1 storeroom mortise lock from the 8800 Series with an Arcadia lever, and the Cal-Royal NM8080 is a heavy duty Grade 1 storeroom mortise lockset with an interchangeable core option for 1-3/4 inch doors. The NM8080 core option pairs with the same SFIC keying approach available on the MSE-W, which can be ordered SFIC prep less core.

Privacy function is the right choice there, and the MSE-W is not built for it. The Cal-Royal NM8440 is a heavy duty Grade 1 privacy mortise lockset with a deadbolt for 1-3/4 inch doors, and the Hager 3840S is a Grade 1 privacy mortise lock on a 2-3/4 inch backset - the same backset the MSE-W uses - for doors 1-3/4 to 2 inches thick.

Seven lever designs are offered: Artistic, Congr, Gala, Imperial, Quest, Regal, Sentinel and Tango, all in 626 satin chrome. Levers are forged brass or cast zinc plated to match. If you are matching existing openings across a building, pick one lever style and hold it across the order.

Yes, and it saves prepping a full mortise pocket. The Schlage L0170 is a Grade 1 heavy duty half dummy trim in the L Series for 1-3/4 inch doors, and the Falcon MESC600DT is a fire rated dummy escutcheon lever trim. Either gives you a lever and plate without lock function, where the MSE-W is a keyed double cylinder lockset with a working latch bolt and guard bolt. Confirm the dummy trim escutcheon profile against the MSE-W's 10-9/16 inch by 2-3/8 inch brass escutcheon if appearance needs to match.

Only if you are changing the door prep. The MSE-W is a mortise lock requiring a mortise pocket, a 2-3/4 inch backset and a 1-1/4 inch by 8 inch faceplate. A cylindrical lock such as the Schlage PC10, a Grade 1 passage cylindrical lock with rose for 1-3/4 inch doors, bores through the door face instead and cannot drop into a mortise prep without a filler or a new door. Keep the comparison to mortise bodies if the existing opening is already mortised.