LCN Door Closer

The SEM7850 LCN Electro Magnetic Door Holder features a metal die cast housing that is surface wall mounted. Tri-voltage design works with 12, 24 or 120 volts, with 35 lbs. of holding force. The magnet housing measures 2-13/16" wide by 4-5/8" high. The armature (door mount part) is 1-11/16" wide by 2-3/8" high with a 1-7/8" diameter. The armature projects out 1-5/8". The total projection of both pieces is 3-5/8". Available in an aluminum or dark bronze color.   Armature extensions are available, along with replacement covers, magnets, and armatures.  Outlet box not included

LCN Part # SEM7850

The SEM7830 LCN Electro Magnetic Door Holder features a die cast metal housing that is surface wall mounted. Tri-voltage design works with 12, 24 or 120 volts, with 35 lbs. of holding force. The magnet housing measures 2-13/16" wide by 4-5/8" high. The armature (door mount part) is 1-11/16" wide by 2-3/8" high with a 1-7/8" diameter. The armature projects out 1-5/8". The total projection of both pieces is 4-1/8". Available in an aluminum or dark bronze color.  Armature extensions are available, along with replacement covers, magnets, and armatures.

The SEM7840 LCN Electro Magnetic Door Holder features a metal die cast housing that is surface wall mounted. Tri-voltage design works with 12, 24 or 120 volts, with 35 lbs. of holding force. The magnet housing measures 2-13/16" wide by 4-5/8" high. The armature (door mount part) is 1-11/16" wide by 2-3/8" high with a 1-7/8" diameter. The armature projects out 1-5/8". The total projection of both pieces is 2-5/8". Available in an aluminum or dark bronze color.  Armature extensions are available, along with replacement covers, magnets, and armatures.  Outlet box not included

LCN Part # SEM7840

The LCN Door Closer Spring cush Arm 3077SC is an optional arm offered by LCN.  The arm features a solid forged steel main arm and forearm with a spring loaded stop in the soffit shoe, which makes this arm ideal for abusive parallel arm applications.  Specify your current closers model number when ordering. Not all of the LCN closers have the same shape spindle on the door closer cylinder. The LCN Part #'s on this Regular Arm is: 1460-3077SC, 4040-3077SC, 4110-3077SC

The LCN Door Closer 1261 Series combines the best features from the previous 1070 and 1370 into a single versatile and economical cast iron closer, with Tri mounting capability. The 1261 is the door closer I would recommend if you are tired of replacing your store front door closers because of leakage.  The 1261 is the most heavy duty standard template closer that is made.  This door closer will work on the push, pull or top jamb, and is non handed.  The 1261 is adjustable spring sizes 1-5 and mounts to the most common commercial footprint. The 1261 also features a complete line of regular and extra duty arms, LCN’s peel-n-stick installation templates, a convenient spring adjust pointer.  The hole spacing is 3/4" x 9-1/16", so it is considered a standard template closer.  LCN also offers a 20 year warranty on this closer. The Brass finish is Painted Brass.

We ship the 1261 Rw/PA

LCN Door Closer Fusible Link Arm

Adjustable nut allows door closer arm to lock when the preselect position is reached. Fusible Link will hold door until heat melts the "Link" and then the door will shut. Used on Fire Doors to control a spreading fire.

Specify your current closers model number when ordering.
Not all of the LCN closers have the same shape spindle on the door closer
cylinder. The LCN Part #'s on this Fusible Link Arm is: 4010-3049FL, 4020-3049FL, 4110-3049FL

SEM7850-828 Armature for LCN Electro Magnetic Door Holder features a metal die cast construction armature. The armature (door mount part) is 1-11/16" wide by 2-3/8" high with a 1-7/8" diameter. The armature projects out 2-5/8". Available in an aluminum or dark bronze color.  Armature extensions are available, along with replacement covers, magnets, and armatures.

The SEM7830-516 LCN Magnet Core Assembly is just the Tri Voltage Magnet Core. 35 pounds of holding force at nominal input voltage. Maximum current draw is .020 A @ 24 volt and 120 volt, and .030 A @ 12VDC.

LCN part number SEM7830-516

The SEM7840-516 LCN Magnet Core Assembly is just the Tri Voltage Magnet Core. 35 pounds of holding force at nominal input voltage. Maximum current draw is .020 A @ 24 volt and 120 volt, and .030 A @ 12VDC. Cylinder is 1-3/4" diameter and projects out 7/8" out from the mounting plate.

LCN part number SEM7840-516

The SEM7830-516 LCN Magnet Core Assembly is just the Tri Voltage Magnet Core. This core is used on the Floor Mounted SEM7830.  It has 35 pounds of holding force at nominal input voltage. Maximum current draw is .020 A @ 24 volt and 120 volt, and .030 A @ 12VDC.

LCN part number SEM7820-516

SEM Parts Manual

The LCN Door Closer 3077EDA Extra Duty Arm is the standard arm shipped with the 4110 series, and is optional on just about all of there other closers.  The arm features a non-handed parallel arm solid forged steel main arm and forearm with stop in soffit shoe.  Specify your current closers model number when ordering. Not all of the LCN closers have the same shape spindle on the door closer cylinder. LCN Part #'s: 1260-3077EDA, 1460-3077EDA, 4040-3077EDA, 4110-3077EDA

LCN 4820 Closer Arm

The LCN 4820 Auto-Equalizer Regular Arm comes with the Arm & Forearm, Rod & Shoe, and all the arm screws.

LCN Part # 4820-3077

The SEM-7800-825 Armature for LCN Electro Magnetic Door Holder is the door mounted piece for th LCN SEM7820-825 / SEM7830-825 / SEM7840-825 / SEM7870-825 series.  It features a metal die cast construction armature. The armature (door mount part) is 1-11/16" wide by 2-3/8" high with a 1-7/8" diameter. The armature projects out 1-5/8". Available in an aluminum or dark bronze color.  LCN Part # SEM7820-825, SEM7830-825, SEM7840-825, and SEM7870-825

LCN Sentronic Door Closer Arm - 4110SE-3077T

LCN part # 4110SE-3077T

This arm will only work on the 4110SE. If you have another LCN Sentronic Model, we can order the arm you need. For us to do that we would need to know which model you have (4110SE, 4010SE, ect..) and the hand of the door, see diagram

The arm shown in the picture is a 4040SE arm, the 4110SE arm is the same, but the shaft hole is an oval.

LCN Sentronic Door Closer Arm - 4010SE-3077T

LCN part # 4010SE-3077T

This arm will only work on the 4010SE. If you have another LCN Sentronic Model, we can order the arm you need. For us to do that we would need to know which model you have (4110SE, 4010SE, ect..) and the hand of the door, see diagram. This arm is for a discontinued LCN Door Closer. We can not allow returns, each arm is specail ordered.

The arm shown in the picture is a 4040SE arm, the 4010SE arm is the same, but the shaft hole is an oval.

The LCN Door Closer Hold Open Arm 3049 has an adjustable nut that allows the door closer arm to lock when they reach a pre select position.  This arm can be used on most LCN Door Closers because the Hold Open function is in the arm.   If you have a regular armed LCN Closer currently, you can use this arm to make them have the Hold Open function.  Two words of warning, they can not be used on an interior fire rated door, and Hold Open arms usually break.   The manufactures sell more door closers with regular arms, but we tend to sell more Hold Open arms, meaning they wear out or break a lot easier then Regular Arms.

Specify your current closers model number when ordering.
Not all of the LCN closers have the same shape spindle on the door closer cylinder. The LCN Part #'s on this Regular Arm is: 1260-3049 (non handed), 1460-3049 (non handed), 4010-3049 (handed), 4020-3049 (handed), 4040-3049 (non handed).   The fitting for the 4040 is a six sided, the 4010, 4020 and 4110 have a flat sided oval, and the 1260 and 1460 have an eight sided star.

The SEM7800 LCN Electro Magnetic Door Holder Metal Cover is constructed of a metal die cast. This cover will work on the SEM7830, SEM7840 and SEM7850. Available in aluminum and dark bronze finishes.

LCN Part # SEM7830-72, SEM7840-72 and SEM7850-72

LCN Drop Plate for Pull Side Mounting

Use this LCN Drop Plate when mounting the door closer on the Pull or Hinge Side of the Door. Allows to door closer to me mounted on narrow stile doors.

LCN Part #'s
1260-18
1460-18
4040-18
4040XP-18
4010-18

LCN Drop Plate for Parallel Arm Mounting

The 18PA LCN Drop Plates are designed to lower the mounting holes on doors with glass at the top of the door. If your door has a narrow stile at the top of it surrounded by a metal frame, mount the door closer on this plate.

LCN Part #'s
1260-18PA
1460-18PA
4040-18PA
4040XP-18PA
4110-18PA

LCN Drop Plate for Top Jamb Mounting

Use the LCN Top Jamb Mounting Plate for applications where the door closer body is mounted on a narrow overhead jamb.

LCN Part #'s
1260-18TJ
1460-18TJ
4020-18TJ
4040-18TJ

The SEM7810-514 LCN Ball Pivot Connection Link Coupler Assembly Kit, is required for each door needing extension(s). Kit includes coupler link and ball pivot (alone serves as an 1-1/2" extenison). The threaded end is 3/8-16.

LCN Part # SEM7810-514

The LCN Hold Open Arm Wrench T-1157 is used to adjust LCN Friction Hold Open Arms,  one side if for the 1-1/2" nut and the other is 1-3/16".  Friction Hold Open arm would be part number 3049, with the suffix being the closer model, like 4040-3049, ect..

LCN part # T-1157

The LCN 1370 was a door closer made in the late 1990's to 2006 or so. The closer had a special mounting plate that made installation very quick. Many people have this door closer in use and now they are starting to fail. The LCN 1370-18QF Quick Fix Plate converts the mounting holes of the 1370 to a standard template closer, which is 3/4" x 9-1/16". By using this plate you will not have to redrill holes in your door. The plate measures 2 by 10-1/4 inches with tapped holes that measure 3/4 x 9-1/16 inch. 

LCN SEM7850-515 Magnet Hardware Package is used to mount the Armature or the Door Mounted part of the Magnetic Door Holders.   If you are currently using LCN door holders, you will not need to purchase this.   However, if you are using another brand and they have gone missing, you will need to purchase this component.

The LCN Fusible Link melts at 165 degrees to release the hold open mechanism.   Link measures 1-3/8 long by a 1/2" wide, the center to center distance on the holes is 15/16".

LCN Part Numbers:
4010-28
4110-30
4020-31

LCN 4630 replacement arm, LCN part # 4630-3077T

Replacement Rod for the LCN 4630 Door Closer, LCN Part # 4630-82