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8400 Series (Life-Safety) Narrow Stile Mortise Exit Device 8400-LR-M1-48-0-42-US32-MEC

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  • 8400 Series (Life-Safety) Narrow Stile Mortise Exit Device
  • 8400 Series (Life-Safety) Narrow Stile Mortise Exit Device
Adams Rite
9.75 LBS
Calculated at checkout

 Product Description


  • Heavy duty deadlatching mechanism

  • Strong, durable construction for a high level of security
  • Easy to install
  • Clean, unobtrusive design
  • Pushbar clad or anodized, not plated, in a variety of finishes
  • Fits standard cutout used for the Adams Rite MS® Deadlock on aluminum stile glass doors

8400 Series Certifications:
• UL 305 Panic Hardware
• ANSI/BHMA A156.3 Grade 1
• California State Fire Marshall
• New York City MEA*

*Consult Factory for specific number

Materials: Pushbar made of extruded aluminum, clad or anodized in a variety of finishes.

Handing: Specify handing and bevel if applicable. Lever Entry Trim is field reversible.

Pushbar Length: Standard sizes: dimensioned for 30”, 36”, 42”, and 48” openings. Standard width bars can be field cut to the next smallest opening width.

Backset: Backsets available in 31/32”, 1-1/8”, and 1-1/2”

Door Thickness: Suits 1-3/4” standard. Can be modified for thicker doors.

Stile Width: Minimum 2” Stile. Fits narrow, medium, and wide stile aluminum doors.

Projection: 2-5/8” when fully projected, 1-5/8”when dogged.

Dogging: Standard dogging with hex key or cylinder dogging option. Electric dogging also available.

Fasteners: Standard self-tapping screws.

Cylinders (available separately): See CYLINDERS for cylinder make, thumbturn and trim ring information.

Cylinder x Fixed Pull: (Function 03): Accepts any standard mortise cylinder with MS® cam.

3080 Entry Trim (Functions 08, 09): Accepts any standard diameter mortise cylinder with MS® cam. Accommodates cylinder lengths from 1” to 1-1/4”. (Available separately).

Warranty: Five year limited.

Strikes: A variety of strikes are available for different applications and conditions. Standard strike (included), Extended Lip 8460-17 (available separately), Longface 8455-01 (available separately).

Thick and Cladded Door Kits:
  • 91-0995-02* - 2” Thick Door Kit
  • 91-0995-03* - 2-1/4” Thick Door Kit
  • 91-0995-04* - 2-1/2” Thick Door Kit
  • 91-0995-05* - 2-3/4” Thick Door Kit
  • 91-0995-06* - 3” Thick Door Kit
  • 91-0325-01 – Thermal Door Kit – ¼” Cladding
  • 91-0325-02 – Thermal Door Kit – ½” Cladding
*Order 8460-XX Long Lip Strike as required.

Options and Accessories:
Silent Electrification Motorized Latch Retraction: The SE Motorized Latch Retraction option provides near-silent operation for quiet environments such as hospitals, offices, hotels, and libraries where solenoid-driven devices would be disruptive.

Electric Latch Retraction: The LR option uses a solenoid mounted in the pushbar for instantaneous unlocking and locking of the exit device from a remote location or access control device. LR option is not available on rim type exit devices (see EL option).

Alarmed Exit Device: This battery-operated option emits a loud (95 decibel) alarm to notify management of unauthorized exit. Available on minimum openign width 36". Cannot be ordered with other exit device options.

Request to Exit (REX) – Monitor / Signal Switch: Mounted in the exit device pushbar on the hinge end, the switch can be used to activate signal light, horn, monitor, or other devices.

Cylinder Dogging: For management control of dogging exit devices for life-safety exit devices only.

Electric Dogging: A holding magnet keeps the pushbar depressed (set manually) and the latch retracted for lower profile exit devices, resulting in less damage and quieter operation.

Matching End Caps: Matching end caps are available for applications where it is preferable that the end caps match the finish of the exit device. Available for US finishes only.

Available Finishes: 313 Dark Bronze Anodized, 335 Black Anodized, 628 Clear Anodized, US3 Bright Brass, US4 Satin Brass, US32 Bright Stainless, US32D Satin Stainless.


For more information on any of the options and accessories listed above please see Options & Accessories for Exit Devices.  


Related Products: When purchasing this product, please consider the following related products, available separately:

Accessories Cylinders Trim Power

REX-Monitor/Signal Kits available separately.

Thick or Cladded Door Kits, 8360-17 Extended Lip Strike, 8455-01 Longface, 8460-XX Long Lip Strike available separately.

Adams Rite exit devices are operable by either rim or mortise cylinders depending upon the ANSI/BHMA functions of the exit device. Entry trim and fixed pulls available separately. Power supplies such as PS-SE,PS-LR, and 4612 Power Transfer Device available separately.

Related ANSI Trim Functions:

01 02 03 08 09 14
Exit only - no outside operation No outside operation - pull only when dogged Night latch - key retracts latch Key outside unlocks/locks lever Night latch - key unlocks trim, trim retracts latch/trim relocks when key is removed Passage only
Cylinder type - N/A Cylinder type - N/A Cylinder type - Mortise Cylinder type - Mortise Cylinder type - Mortise Cylinder type - N/A

Please see TRIM for information on Pulls and Entry Trim.

 Warranty Information

Limited Warranty
Products sold under the Adams Rite brand in the United States
of America are warranted free from defects in workmanship and
materials under normal use and service.
This warranty does not cover defects or damage arising from improper
installation, lack of or improper maintenance, improper storage, shipping
and handling, corrosion, erosion, ordinary wear and tear, misuse, abuse,
accident, unauthorized service, or use with unauthorized non-Adams
Rite products or parts.
This warranty is void if any modification is made to the product,
regardless of whether the modification causes or contributes to the
alleged defect. All modifications are made at the risk of the party
making the modification.
Should any defect of manufacture (in material or workmanship) occur
in its products, Adams Rite, upon prompt notification and proof to its
satisfaction that the product was defective in manufacture for the use
intended by Adams Rite, will at its option, exchange the product, repair
the product, or refund the price charged by Adams Rite, FOB factory
within the stated time frame listed below.

All mechanical products for five (5) years from date of manufacture

Ultraline 7400 Electric Strikes for five (5) years from date
of manufacture

All electrical products for three (3) years from date of manufacture,
with the exception of the exit devices with the SE option

Exit devices with the SE option for one (1) year from date
of manufacture. Adams Rite recommends that for optimal
performance all exit devices with the SE option are installed and
powered using PS-SE power supplies. Installing SE exit devices
with PS-SE power supplies extends the warranty to five (5) years
from date of manufacture.

 Other Details

8400 Instructions:

8475 Instructions:

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