LCN 4040SE.US28 | Electro HO Door Closer (4040)

LCN 4040SE.US28 | Electro HO Door Closer (4040)

LCN 4040SE.US28 | Electro HO Door Closer (4040)

Finishes: US28 Silver w. Matching Arm & Track


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LCN 4040SE.US28 | Electro HO Door Closer (4040)


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  • Additional Product Details

    Electromagnetic Hold Open Heavy Duty Closer 24Vac/dc w. Backcheck, Plastic Cover and Sentronic 24V Track. Spring Power Adjustable Size 3-4. Universal Track for Two Possible Applications*. 

    This variant includes:

    Cylinder - 4040SE-3071
    Standard, non-handed cast iron cylinder assembly

    Standard Arm - 4040SE-3077T
    Non-handed arm.  Arm adjustable to select hold-open point

    SE Track - 4040SE-3038
    Non-handed. Mounts on either head frame or stop 24Vac/dc input for holding solenoid
    Includes test switch assembly with fuse

    Track Roller - 4040SE-3034SE
    Quiet, low-friction roller assembly. Shoulder dimension "X" = 3mm with Track Slider - 4040SE-168 Alloy metal slider for use in SE series tracks only

    Table of Sizes - Recommended range of door widths for all closer models.

    Correct Closer Adjustment

    Suits doors <102 kilos 

    *UKCA & CE Certification applies to Hinge (Pull Side) Mounting Only

    Your compatible Power Supply is available here: Relcross PS02 | 24Vdc 1.0 Amp Power Supply (PSU)

    The 4040SE Sentronic closer provides a single-point hold open for fire and smoke barrier doors. The 4040SE Series is UL listed for metal smoke barrier or labelled fire doors and meets ANSI/BHMA A156.15 and NFPA 101 Life Safety Code standards. It is cUL-listed for self-closing doors without hold open. Each closer is backed by a 2-year limited warranty, offers optional plated finishes and integrates with existing fire and life safety systems, minimising danger to life and property under fire conditions.

    • Standard 4040SE series closer shipped with a standard arm, 24V SE track, standard cover and wood & machine screw pack
    • Non-sized cylinders for interior doors to 1220mm
    • Hold-open force is adjustable
    • Momentary on/off switchboard assembly for testing door release also provides over-voltage protection. Field replaceable
    • Functions as a full rack and pinion closer when hold-open is not engaged or the current is interrupted
    • Closer mounts on either push or pull side of the door
    • Non-handed for mounting on either right or left-hand door
    • Universal Sentronic track offers concealed or surface wiring
    • Interfaces with alarm systems. Consult Relcross for full details
    • Standard or optional custom powder-coated finishes on the cover, arm and fasteners
    • Optional plated finishes
    • Non-handed
    • Requires additional system components
    • Surface Mounting
    • For interior fire and smoke barrier doors. Single-acting cylinder on door top rail
    • Exposed arm and track to the head frame
    • Maximum Opening - Butt hinge template allows 110° with hold open points between 85° and 110°
    • Optional SEL special long track allows hold open points between 90° and 120° in approximately 3° increments
    • Consult Relcross for all pivot-mounted installations
    • Butt Hinges should not exceed 127mm in width.
    • Auxiliary Stop is recommended at the hold open point
    • All Weather Fluid - Performs without variation: Manual Closers - between -35° to +49°, Electronic HO Closers & Automatic Operators - between +2° to +49°C. At approx. +75°C, the fluid will begin to leak from the mechanism. The flash point is approx. 110°C


    The 4040SE Series functions as a full rack-and-pinion closer when the hold-open option is not engaged or the electrical current to the door is interrupted. The single-lever arm is specifically designed for interior doors. The 4040SE Series is a surface-mounted closer on the hinge pull side or the stop face push side of the door.

    LCN Door Closers | Von Duprin Exit Devices | Schlage Locks

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    Relcross Limited (trading as) Relcross Door Controls | Hambleton Avenue | DEVIZES | Wiltshire | SN10 2RT | United Kingdom | T: ++ 44 (0) 1380 729 600 | F: ++ 44 (0) 1380 729 888 |  E: sales@relcross.co.uk 

  • Certification

    UK Fire Certification per BS EN 1634-1:2014 (timber) - 120 mins
    UK Fire Certification per BS EN 1634-1:2014 (steel) - 60 mins
    WFRC No. 142058 

    EN 1154: 1996 + A1: 2002/AC:2006
    EN 1155: 1997 + A1: 2002

    UKCA | CE | ANSI | UL | 120 Mins Timber | 60 Mins Steel | Warranty: 10 Years (Mechanical), 2 Years (Electrical)

    Certificates, including DoPs, downloadable here

  • Resources | Downloads