3E550-1Lm L Bracket For Monitored Magnet
In stock
Delivery Information
| Delivery Time Frame | Delivery Information |
| Next Working Day By 1PM | When an order is placed by 3pm for next working day on certain items |
| Standard Delivery | Usually delivered in 2 to 4 working days |
| Delivery Charges | |
| UK Mainland | Prices start at £3.95 for very small items, £6.50 for small, £9.50 for medium and £20 for large/long items |
| Scottish Highlands & Islands, Northern Ireland & Ireland | Prices from £30, please see our delivery page for more info. |
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Description
Professional Magnetic Lock Mounting with the 3E550-1Lm L Bracket
Installing access control hardware on standard door frames often presents structural hurdles for engineers and facilities teams. Modern commercial doors, particularly narrow aluminium or hollow metal profiles, frequently lack the depth required to directly seat a surface mounted magnetic lock. Without sufficient transom depth, the electromagnetic lock overhangs the opening, preventing the unit from sitting flush against the door leaf. This misalignment compromises both the visual finish of the entryway and the fundamental holding force of the access control system.
The 3E550-1Lm L Bracket For Monitored Magnet solves this mounting issue by extending the usable frame face outwards. Specifically fabricated to support monitored magnetic locks, this bracket provides a solid, level mounting surface across the header. By providing an extended fixing plane, the bracket enables engineers to position the main electromagnetic body cleanly along the frame, ensuring consistent, flush alignment with the corresponding armature plate on the door face.
Manufactured from high-grade architectural aluminium with a clean anodised finish, this bracket delivers durable performance across demanding environments. High-traffic commercial properties, retail premises, and healthcare facilities benefit from the added stability that a precision-engineered bracket provides. With pre-machined mounting slots and wire routing paths, it cuts down on installation time on site while protecting sensitive feedback cables linked to the internal monitoring reed switches.
Engineered for Reliable Access Control
A secure door relies entirely on correct physical alignment. When an electromagnetic lock is misaligned by even a fraction of a millimetre, the magnetic circuit cannot close fully. This flaw severely reduces the actual physical holding force of the system and can trigger false alarms on monitored locks. The 3E550-1Lm bracket eliminates these issues by providing a rigid base that resists continuous operational stresses.
Structural Extension for Shallow Transoms
Architectural frames often have shallow reveals that cannot accommodate a full-sized electro-magnet housing. The 3E550-1Lm acts as a seamless extension piece, dropping the mounting plane down and out to guarantee full physical purchase for the magnetic body.
Dedicated Monitoring Channel Support
Monitored magnetic locks incorporate internal sensors and secondary wiring that must remain uncompressed. This bracket features carefully positioned apertures that allow sensor cables to pass cleanly through to the frame cavity without pinching or chafing.
Heavy-Gauge Extruded Aluminium
Constructed from robust extruded aluminium, the bracket resists flexing, twisting, and corrosion. The metal absorbs repeated door slam vibrations, ensuring fixing screws remain tightly anchored throughout years of heavy public footfall.
Clean Architectural Appearance
Featuring a satin anodised finish, the bracket blends neatly with contemporary commercial door furniture, timber frames, and modern aluminium shopfront profiles, delivering a tidy installation that architects and building inspectors approve of.
Step-by-Step Installation Pipeline
Installing access control hardware requires precision and adherence to good engineering practice. Below is the recommended workflow for securing the 3E550-1Lm bracket to an outward opening door frame.
Stage 1 Frame Assessment
Assess the transom header for stability and depth. Clean the frame area thoroughly, verifying that the door closes cleanly into the rebate without binding or excessive play.
Stage 2 Marking and Drilling
Offer the bracket up to the transom header. Mark the fixing holes and the cable entry point using a centre punch. Drill pilot holes to ensure accurate fastener engagement.
Stage 3 Cable Routing
Feed power and status monitoring cables through the pre-drilled access port. Use rubber grommets where required to protect cable insulation from sharp edges.
Stage 4 Final Torquing
Fix the bracket securely to the transom using suitable architectural fixings. Fasten the magnetic lock body to the downward flange, checking level alignment with the armature plate.
Detailed Specifications
The following technical parameters outline the physical properties, compatibility standards, and practical site considerations for this mounting bracket.
| Specification | Rating or Standard | Practical Details |
|---|---|---|
| Product Code | 3E550-1Lm | Unique manufacturer model identification for single monitored magnet housings. |
| Bracket Type | L Bracket Configuration | Designed specifically for outward opening doors with narrow transom headers. |
| Material | Architectural Aluminium | High strength extruded aluminium alloy offering long-term structural rigidity. |
| Surface Finish | Satin Anodised | Protective satin finish that matches standard commercial architectural hardware. |
| Lock Compatibility | Monitored Single Magnets | Sized to support standard single monitored magnetic locks with reed switch channels. |
| Door Suitability | Outward Opening | Engineered for timber, steel, and commercial aluminium frame assemblies. |
| Fixing Holes | Pre-Machined Slotted | Allows fine lateral and depth adjustments prior to locking screws into position. |
Frequently Asked Questions
When is an L bracket required instead of a standard direct mount?
An L bracket is essential whenever the door frame header does not provide adequate depth to seat the full body of an electromagnetic lock. Outward opening doors with narrow reveals require an L bracket to drop the mounting face flush with the top rail of the door leaf.
Can this bracket be installed on inward opening doors?
No, inward opening doors require a Z and L bracket combination set. The standard L bracket is used specifically for outward opening doors where the magnet attaches to the frame header and the armature plate fixes flat to the door face.
What makes this bracket suitable for monitored magnets?
Monitored locks contain internal Hall effect sensors or mechanical reed switches that send status signals back to access control controllers. This bracket features wire clearance routes that accommodate additional monitoring cables without pinching them against the frame.
Need Assistance With Your Access Control Hardware?
Our experienced technical team is on hand to assist trade professionals and facilities managers with architectural hardware specifications, frame compatibilities, and complete locking packages.
Contact Our TeamSpecification
| Finish | Black |
|---|

