Delaney 504L - MD Style Lever Exit Device Exterior Trim - Night Latch Function

Yes. The 504L MD lever trim covers doors from 1-3/4 inches to 2 inches thick, which takes in the standard commercial 1-3/4 inch hollow metal door as well as heavier 2 inch leaves. If your opening is a thinner 1-3/8 inch door, this trim is out of range and you want a trim rated down to 1-3/8, such as the Pamex E9000 (1-3/8 to 2 inches) or the Tell EDELT80 (1-3/8 to 1-3/4 inches).

Night latch means the outside lever is always locked and never retracts the latch on its own. A key in the cylinder is what releases the lever so you can get in from outside; from inside, the push bar always lets you out. That is what you want on a rear exit, service door, or delivery entrance that staff enter with a key and nobody should be able to pull open. If you want the lever to stay unlocked for free entry, you need a passage-function trim instead, and if you want the lever locked but the key to leave it unlocked until relocked, that is storeroom or classroom function, not this.

The 504L ships standard with a Schlage C 6-pin cylinder, and a KW1 5-pin cylinder is available as an option. So yes, if your building is keyed Kwikset KW1 you can specify that version and bring the door onto your existing key system instead of carrying a second key. Call out the keyway when you order, since the Schlage C is what goes out by default.

The Delaney 504L is mechanical, with a Schlage C 6-pin cylinder standard and KW1 5-pin optional, so entry is by key. For electrified control, Command Access offers the 230L for Von Duprin V96/36/23 Series devices, plus the ET15, ET25, and ET26, all with 12V/24V operation and fail safe or fail secure options, with the ET26 field reversible and Grade 1. The Falcon 510L-FSA/FSE is the electrified version of the 510L heavy duty trim for 25 Series devices, and the Von Duprin E360L-BE-03 is an electric passage trim with the 03 lever in fail safe for 33/35A devices. For credential-at-the-door without wiring back to a panel, the Dormakaba E-Plex 201U is an electronic pushbutton exit trim and the PowerPlex P201U fits rim, mortise, and SVR devices.

Night latch keeps the outside lever locked until a key retracts the latch, so on a door that has to stay pullable all day you want storeroom, entry, or passage trim instead. Storeroom options include the Design Hardware KIL Storeroom trim for 1000 and 2000 Series devices with a Schlage C keyway and flat lever, the Tell EDELT80 escutcheon lever trim in storeroom function, the Marks USA M195F lever and rose trim with spring loaded roses, and the Pamex E9000 with the L3 lever, listed Grade 1 for 1-3/8 inch to 2 inch doors. For keyed entry, the Tell EDELT53 and the Design Hardware LE08 flat lever with escutcheon both list entry function. For a lever that is always free from outside, the Arrow SRX01 Sierra lever with rose and the Corbin Russwin x910ET are passage function.

A pull trim does the same job with no lever. The Design Hardware 2P-03NL is pull trim with a cylinder hole, night latch function, for the 1000R and 2000R exit devices. The Dexter ED1500T-PULL-NC is a nightlatch function trim with a raised lip pull plate, which Dexter lists as Grade 1. The Tell EDPT is exit device pull trim with a cylinder hole, less cylinder, for doors 1-3/8 inch to 1-3/4 inch thick. The trade-off against the Delaney 504L is that a pull gives you a gripping surface only, while the 504L gives a lever the key releases, which is what ADA-compliant operation on the outside calls for.

The Delaney 504L covers stock hollow metal doors with a 161 cutout at 1-3/4 inch to 2 inch thickness, which is a hollow metal opening rather than a narrow stile aluminum one. For narrow stile devices, BEST lists the 2001 exit only pull trim with cover plate and the 2901 exit only lever trim, both narrow stile for 2000 Series exit devices. BEST also lists the 1701 pull trim and the 4901 lever trim as wide stile for the same device family, so confirm the stile width of the door before picking between them.

The 504L MD lever trim is ADA compliant. A lever is the graspable shape ADA looks for on an entry, which is why it gets specified over a knob on accessible routes. If you are looking at knob trim for a similar device, the Von Duprin 210K-BE is knob with a blank escutcheon and does not give you the lever shape.

For a night latch lever trim, the Sargent 704ET is a heavy duty Grade 1 night latch lever trim with field reversible operation, and the Sargent 704-ETL is the night latch lever with key retract for PE Series devices. The Dorma YR03R is a wide stile night latch escutcheon lever trim supplied less cylinder. Corbin Russwin's VT957ET is a nightlatch escutcheon trim in stamped or formed stainless for ED5000 Series devices. All four give you the same locked-lever, key-to-enter behavior as the 504L; what differs is which exit device family each is built to mount on.

Lever trim like the Delaney 504L gives someone a handle they can operate from outside once the key releases it, which is what you want where people legitimately enter through that door. Pull trim is the simpler route when the door is exit-only and you just need something to grab: the Tell exit device pull trim comes with a cylinder hole and less cylinder, Design Hardware's 2P-03NL is a night latch pull trim with cylinder hole for 1000R and 2000R devices, and BEST's 1701 (wide stile) and 2001 (narrow stile) are exit-only pull trims for 2000 Series devices. Pull trim also has no moving lever to break on a high-abuse door.

The cylinder is part of the specification on the 504L: Schlage C 6-pin is the standard, with a KW1 5-pin available instead. That is different from trims sold less cylinder, where you supply your own to match a master key system, like the Dorma YR03R or the Corbin Russwin VT957ET-LC. If you are keying an entire property to one system, name the keyway you need up front.

No. Classroom trim and night latch trim behave differently at the key. The Delaney 504L is night latch, where the key retracts the latch to let the lever operate and the lever is locked the rest of the time. Classroom trims such as the Falcon 510L heavy duty lever trim for the 24/25 Series, the Falcon 179L in the 1790 Series, the Accentra 446F with the Augusta lever, and the Dexter ED1000T classroom thumbpiece and pull plate trim use the key to change the outside lever between locked and unlocked states, so it stays as the key left it. If the requirement is momentary key access rather than a state change, night latch is the function to order.

The Sargent 744 is Grade 1 freewheeling night latch trim where the key retracts the latch, made for surface vertical rod and mortise devices in the 8700 and 8900 Series. The Corbin Russwin VT957ET is nightlatch trim for the ED5000 Series, and the Von Duprin 110MD-NL is a night latch cylinder assembly for metal and wood doors on 22, 55, and 98/99 devices, which supplies the cylinder function without a lever. The Delaney 504L brings the same night latch behavior with an MD style lever and covers a 161 cutout in hollow metal.

The Delaney 504L is built around a Schlage C 6-pin keyway as standard with a KW1 5-pin option, so the keying is defined up front and can be brought into an existing Schlage C system. Among alternatives, the Corbin Russwin VT957ET-LC and the Dorma YR03R are both listed less cylinder, and the Tell EDPT pull trim and the Dexter ED1000T classroom trim are also less cylinder, meaning the cylinder is ordered separately to match a facility keyway. The Design Hardware KIL entry and storeroom trims are specified with a Schlage C keyway and a flat lever, matching the 504L on keyway.

The Marks USA M195F and M195N are lever and rose trims, with the M195F using spring loaded roses, so the mounting footprint on the door face is a pair of roses rather than a full plate. The Arrow SRX01 is a Sierra lever with rose in passage function. The Delaney 504L MD style lever trim covers a stock hollow metal door with a 161 cutout, which is what a full escutcheon plate is generally chosen for - a rose trim leaves more of that prep exposed, so check what is already cut into the door before switching styles.

The Delaney 504L MD style lever trim comes in US26D dull chrome, US10B oil rubbed bronze, and US19 black, which covers the three most common commercial door schedules - satin chrome for institutional and MRO openings, oil rubbed bronze for hospitality, and black for storefront and modern multi-family. Among the alternatives, the Tell trims including the EDELT80 storeroom and EDPT pull are carried in 26D, and the Design Hardware 2P-03NL night latch pull trim is carried in 32D, both of which sit alongside a US26D 504L on the same opening.