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55 Mortise Lock Cross Bar Exit Device
WP_6048_590x332
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5575 mortise lock devices for all types of single and double doors. UL listed for accident hazard installations.

The 5575 mortise lock is equipped with a 3/4" (19mm) anti-friction latch bolt which is field reversible without removing the lock from the door. It has a non-handed auxiliary bolt for deadlocking and a faceplate with an adjustable bevel. Wood doors required 589 cover plate.

Features and Benefits
  • Field sizeable
  • Latch bolt deadlocking
  • 3/4" (19mm) throw latch bolt
  • Five popular finishes

Dimensions

  • Crossbar height to finished floor 36 13/16" (935mm) at center
  • Latch bolt height to finished floor 40 3/32" (1018mm) at center
  • Crossbar projection — neutral 3 3/4" (95mm)
    depressed 2 3/8" (60mm)
  • Crossbar length 42" (1067mm)
  • Lock stile case 7 1/4" x 1 3/16" x 2 1/4" (184mm x 30mm x 57mm)
  • Hinge stile case 7 1/4" x 1 3/16" x 2 1/4" (184mm x 30mm x 57mm)
  • Lock case 4 5/8" x 5 3/4" x 1 1/16" (117mm x 146mm x 27mm)
  • Faceplate 1 1/4" x 8" x 7/32" (32mm x 203mm x 6mm)
  • Cylinder backset 2 3/4" (70mm)
  • Crossbar tubing 1" (25mm)
Outside Trim
Standard
375L
550DT

Trim Selection
Function 1
Exit Only
2
Pull When Dogged
3
Key Retracts Latch Bolt
8
Key Locks Lever
8
Key Locks Lever
11
Key Locks Thumbturn (Pull Required)
Trim Number and Description 55EO 55DT 55NL 371-L 375-L 376DT x 609DT
Projection  ---- 2-5/8" (67mm)
1-7/8" (48mm)
2-5/8" (67mm)
1-7/8" (48mm)
2-5/8" (67mm)  ---- 1-13/16" (46mm)
Rim - Panic 55EO 55DR 55NL  ----  ----  ----
Rim - Ctr. Line A 39-13/16"
(1011mm)
A 39-13/16"
(1011mm)
B 39-13/16"
(1011mm)
A 39-13/16"
(1011mm)
B 39-13/16"
(1011mm)
 ----  ----  ----
Mortise Lock - Panic 5575EO 5575DT 5575NL  ---- 5575L  ----
Mortise Lock - Fire 5575EO-F  ---- 5575NL-F  ---- 5575L-F  ----
Mortise Lock - Ctr. Line  ----  ----  ----  ---- A 39-13/16"
(1011mm)
B 38-1/2"
(978mm)
 ----
Concealed Vertical Rod Lock - Panic 5547EO 5547DT 5547NL  ----  ---- 5547TL
Concealed Vertical Rod Lock - Fire 5547EO-F  ----  ---- 5547L-F  ---- 5547TL-F
Concealed Vertical Rod Lock - Ctr. Line  ----  ----  ---- A 39-13/16"
(1011mm)
B 40-7/16"
(1027mm)
 ---- A 39-13/16"
(1011mm)
B 53-1/2"
(1359mm)
Additional SNB requirements 2 2 2 2 2 2
Cylinder Type Required - Rim  ----  ---- Rim  ----  ----  ----
Cylinder Type Required - Mortise  ----  ---- Mortise  ----  ----  ----
Cylinder Type Required - C.V.R.  ----  ---- Rim Mortise Mortise Mortise


Standard Trim
Series 550
Heavy aluminum bracket with 10" (25mm) stainless steel or brass pull bar. 550DT with NL function is furnished with 110MD or WD. On 555NL (Metal) and 556NL (Wood), the cylinder locates in pull return. Cylinder must be ordered separately.
 
Series 550
Heavy aluminum brackets with 10" (25mm) stainless steel or brass pull bar. DT function only.

Series 376T
Thumbturn control has a forged brass 7/8" (25mm) thick escutcheon. Often used with DT trim or pull. An NL cylinder plate is included for thumbturn operation only when key is used for vertical rod or mortise device. BE blank escutcheon is available, specify 376T-BE.
 
Series 370L
Lever control has a forged brass 7/8" (25mm) thick escutcheon. Optional lever designs are available. An NL cylinder plate is included for lever operation only when key is used for vertical rod or mortise device. BE Blank escutcheon is available, specify 371L-BE.

Lever Design Options
  • 01
  • 02
  • 03
  • 06 Standard
  • 07
  • 12
  • 17
Operation Options
  • Standard Operation — Key locks and unlocks lever.
  • NL Function — Lever is locked when key is removed.
  • Blank Escutcheon — Lever always active. BE suffix, e.g., 371L-BE.

ANSI Grade, Type & Function

Function
Grade 1
Type 1 & 4
Grade 1
Type 3 & 10
Grade 1
Type 6 & 8
1 55EO 5575EO, 5575EO-F 5547EO, 5547EO-F
2 55DT 5575DT 5547DT
3 55NL 5575NL, 5575NL-F 5547NL
8  ----  ---- 5547L-F
11 12  ----  ---- 5547TL, 5547TL-F
11 12  ----  ---- 5547TL-WDC, 5547TL-WDC-F


Finishes
Color  
US Number BHMA Number
Brass, Polished US3 BHMA605
Brass, Dull US4 BHMA606
Brass, Dull-oxidized US10B BHMA613
Bronze, Dull US10 BHMA612
Chrome, Polished US26 BHMA625
Chrome, Dull US26D BHMA626
Strikes and Fasteners
Device is furnished with standard 575 strike in dull black finish. Sex nuts and bolts for mounting are included for 1-3/4" (44mm) and 2-1/4" (57mm) thick doors. Optional strikes and finishes are available.

Strike Application/Minimum Stile
Device Type
Standard Optional
  Single Door Double Door Single Door Double Door
  Strike Stile Strike w/ Mullion Stile Strike Stile Strike w/ Mullion Stile
55 Rim 1409 1-3/4" (44mm) 1408 x 5754 1-3/4"(44mm) 299 2-13/16" (71mm) 299 x 5654 2-3/4" (70mm)
55 Rim 1409 1-3/4" (44mm) 1408 x 5754 1-3/4"(44mm) 1410 1-3/4" (44mm) 264 x 5654 2-1/2" (64mm)
55 Rim 1409 1-3/4" (44mm) 1408 x 5754 1-3/4"(44mm) 1606 2-3/8" (60mm) 1606 x 1654 2-3/4" (70mm)
55 Rim 1409 1-3/4" (44mm) 1408 x 5754 1-3/4"(44mm) 264 2-9/16" (65mm) 299 x 4954 3-3/16" (81mm)
55 Rim 1409 1-3/4" (44mm) 1408 x 5754 1-3/4"(44mm) 264 2-9/16" (65mm) 264 x 4954 2-5/16" (75mm)
5575 575 4-3/4" (121mm)  ----  ----  ----  ---- 575-2
576A-576B
4-3/4" (121mm)
5575-F 575 4-3/4" (121mm)  ----  ----  ----  ---- 575-2
576A-576B
4-3/4" (121mm)
  Strike Stile Strike Stile
5547 471U (Top)
301L (Bottom)
   Single door
Two vertical rod devices
Vertical rod w/mortise lock device 
1-7/8" (48mm)

1-3/4" (44mm)

4-3/4" (121mm)
472U/473U (Top)
For Wood Frames
   Single door
Two vertical rod devices
Vertical rod w/mortise lock device 
1-7/8" (48mm)

1-3/4" (44mm)

4-3/4" (121mm)
5547WDC 338 (Top)
301L (Bottom)
  Single door
Two vertical rod devices
4" (127mm)
4" (127mm)
472U/473U (Top)
For Wood Frames
  Single door
Two vertical rod devices
4" (127mm)
4" (127mm)
5547-F Soffit Latch (Top)
301L (Bottom)
  Two vertical rod devices
Vertical rod w/mortise device
4-3/4" (121mm)
4-3/4" (121mm)
385A (Bottom)   Vertical rod w/mortise lock device 4-3/4" (121mm)
5547WDC-F 338 (Top)
301L (Bottom)
  Two vertical rod devices 4" (127mm) 472U/473U (Top)
For Wood Frames
  Two vertical rod devices 4" (127mm)


Strikes for Rim Devices
264
Projection 13/16" (21mm)
299 Projection 13/16" (21mm)
1408 Projection 13/16" (21mm)
1409 - Blade Stop One per paid of doors
1410 - Integral Stop Projection 1/2" (13mm)
1606 Projection 3/8" (10mm)
1609  ----


Strikes for Vertical Rod Devices
301L
Mortise 3/4" (19mm)
304L Mortise 13/16" (21mm)
338 Projection 5/8" (16mm)
385A Mortise 2-1/2" (64mm)
471U Hollow metal frame
472U Wood frame 1-3/4" (44mm) thick doors
473U Wood frame 2-1/4" (57mm) thick doors


Strikes for Mortise Lock Devices
575
For use on 1-3/4" (44mm) or 2-1/4" (57mm) Single door and 2-1/4" (57mm) double door with coordinator
575-2 For use on 1-3/4" (44mm) thick double door with coordinator
576A Open back strike for 1-3/4" (44mm) thick double doors without coordinator
576B Open back strike for 2-1/4" (57mm) thick double doors without coordinator


Cylinders
Cylinders are not furnished with device or trim and must be specified when ordering. Rim and concealed vertical rod exit devices use rim type cylinders. Mortise lock exit devices and series 370 controls use mortise type cylinders.

Conversion Kit — NL
For converting 55DT or 55EO to 55NL for night latch function. The kit includes 110NL cylinder assembly and cam. The 550DT trim and 3216 rim cylinder are not included.

UL Listed — Fire Exit Hardware Label/Opening Size
 
  Double Door
Exit Device Single Door Same Direction
Vert./Vert.
Same Direction
Vert./Mortise
Double Egress
5575-F 3 Hour
4' x 10'
 ---- 3 Hour
8' x 8'
 ----
5547-F  ---- 90 Min.
8' x 8'
3 Hour
8' x 8'
3 Hour
8' x 8'
5547-F-WDC  ---- 90 Min.
8' x 9'3"
 ----  ----