Lever Operated Opening

LX Series Lever Operated Openings

Syntegra’s style and goals are characterized by their LX series of lever-operated openings. A handle and keyed cylinder can be fitted to either or both sides of the central lock case. Besides offering the popular features of conventional locksets, we are also able to do a lot more with the lock case. They are equipped with break-away clutches that protect the lever handles from abuse.

There is no need to add bulky escutcheons, roses, or edge plates to conceal the door preparations and mechanisms with Syntegra door systems. All other elements are concealed and protected, except those needed for operation.

Imagine being able to activate and lock each leaf of a dual-door unit separately without the need for coordinators, astragals, and manual flush bolts. Pairs and single doors also benefit in hiding the side latch and strike from sight and prevent tampering by latching at the top of the door. The LX Series will interface with nearly any access control and door automation system via Syntegra’s electrical equipment.  More specifically, with the electrified lever (ELS) and electrified latch retraction (ML).

Typical Applications

Double passage doors, single door systems, and pairs are most commonly used in the following areas:

  • Gathering Areas – Office Lobbies, Elevator Lobbies, Stairwells, and Elevator Cabs
  • Singles and Pairs are often used in Offices
  • Main or major entrance and exit ways
  • Areas such as hospitals or surgical clinics. 

Tested Durability

  • Lever Handles are rugged solid cast forged steel.
  • To prevent damage from abusive areas, the clutch uses a breakaway system.
  • The LX Series is made to meet and far exceed any current security, durability, or strength standards.

Enhanced Security

  • The LX Series is equipped with Syntegra’s patented friction-limiting latch bolt with a 7/8″ throw.
  • The system can be configured to latch from the top and bottom, or just from the top.
  • Levers are kept safe via the anti-abuse clutch system.
  • Latches operating parts and mechanisms are concealed and kept safe from attack or other forms of abuse or tampering, being nestled within the steel doors.


  • The list of options and functions is extensive, catering to most applications and door openings.
  • Latch retraction systems, the electrified lever, and other available RX options are access control ready.
  • For down-the-road options, kits are available to ease electrical upgrade installations. 

Uncompromised Safety

  • The latching systems are UL10C Fire Rated.
  • The top latching and bolt systems are made to prevent any snagging or catching of clothes.
  • For healthcare, school, or germ-sensitive buildings, antimicrobial coatings are available. 

Unequaled Aesthetics

  • Most common finishes and door styles come without being equipped with an escutcheon.
  • Integrated top strike prep is available as an option, reducing the notch that other types require.
  • The top door notch and the top strike are less visible due to the projection-type latch bolt.
  • Fire standards are met with this system without the need for floor strikes.

LX Series Functions

Equivalent ANSI/BHMA Function *DESCRIPTION
Latch(es) operated by
Locked by
Unlocked by
F01 – Passage:
• Rotating Inside Lever or outside leverCannot be lockedAlways unlockedAlways free egress
F04 – Entry:
• Rotating Inside Lever, or
• Rotating outside lever only when unlocked by key or thumbturn
• Turning key in outside cylinder
• Turning inside thumbturn or,
• Turning key in outside cylinder
• Turning inside thumbturn or,
• Turning key in outside cylinder
Always free egress
F05 – Classroom:
• Rotating Inside Lever, or
• Rotating outside lever only when unlocked by key, or
• Turning key in outside cylinder
• Turning key in outside Cylinder• Turning key in outside cylinderAlways free egress
F07 – Storeroom:
• Rotating inside lever, or
• Turning key in outside cylinder
• Always locked• Cannot be unlockedAlways free egress
F09 – Apartment, Exit or Public Entrance:
• Rotating inside lever, or
• Rotating outside lever only when unlocked by key inside
• Turning key in outside cylinder only
• Turning inside key in inside cylinder• Turning key in inside cylinderAlways free egress
F30 – Asylum or Institutional:
• Turning key in inside or outside cylinder, fixed levers or no levers• Always locked• Cannot be unlockedAlways fixed
F31 – Exit or Communicating:
• Rotating inside lever Outside blankN/AN/AAlways free egress
F32 – Intruder Latch Bolt Lock:
• Rotating inside lever, or
• Rotating outside lever only when unlocked by key, or
• Turning key in outside cylinder
• Turning key in inside or outside cylinder• Turning key in inside or outside cylinderAlways free egress
Electrified Classroom – Fail-Secure or Fail-Safe:
• Rotating inside lever, or
• Rotating outside lever only when unlocked by key or switched power
• Turning key in outside cylinder
• Removing switched power• Turning key in outside cylinder or switched power allows lever to be rotatedAlways free egress

All functions are factory configured. In most cases, these functions can be changed as required in the field. Consult factory for instructions.

* Equivalent ANSI/BHMA A156.10 functions used for reference

XT Series Fire Door Handle Options

If our standard levers don’t match your style preferences please ask about our Décor Lever Series.

XT Series Fire Door Hardware Finish Options

Antimicrobial coatings are available for healthcare, education, and other germ-sensitive environments.

Hardware Specifications

Device FunctionsConfigured from the factory. See Function Chart for capabilities.
Fire RatingsUL10C with single-point top latching or top and bottom latching.
Lever Centerline38-1/2″ (978 mm) from finished structural floor (not including floor covering).
Lever MaterialsCast Stainless Steel. Finished to match customer requirements.
Lever Projections01 – Square = 2-5/32″ (55 mm)
02 – Tubular = 2-9/16″ (65 mm)
03 – Curved = 2-3/8″ (60 mm)
StrikesTop strike can be mortised or surface applied (P/N TSK-1 Kit). Bottom strike, if applicable, is a ½” diameter hole threshold or surface strike (P/N BSK-1 Kit).
Electrical OptionsML – Motorized latch retraction quietly and efficiently retracts the latch(es) and pushbar when energized. Configured for fail-secure to comply to fire ratings.
ELS – Electrified lever. Energizing allows lever to rotate to retract the latch(es). Fail-Secure or Fail-Safe available.
LM – Latchbolt monitoring provides notification when the latch is extended.
LatchboltsTop latching standard with – 7/8″ (22.2 mm) throw. Projection type Friction limiting-design with deadlatch feature. Bottom – Massive Stainless Steel 5/8″ throw bolt with conical tip.
Optional Keyed CylinderStandard diameter Mortise Cylinder with ‘standard’ cam. Accepts 1″ cylinder length or greater. Cylinder in excess of 1” requires a spacer collar equal to this excess (Example 1-1/8″ length requires a 1/8″ collar).
Back-to-back CylindersRequires a 3/16″ collar for a 1″ cylinder length. For longer cylinders, use the following to dimension the collar: Cylinder Length –1” + 3/16”= Collar (Ex. 1-1/4″ requires a 7/16” collar).