Schlage Electronics M452 - Ele...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$2,127.00
$1,544.93
Schlage Electronics Schlage Electronics M452 - Electromagnetic Lock - 1000 lbs Holding Force, Double Door SCH-M452

Schlage Electronics M452 - Electromagnetic Lock - 1000 lbs Holding Force, Double Door

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Model: M452

In Stock (leaves warehouse same day if ordered before 3pm ET)

$2,127.00
$1,544.93
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M450/452 ELECTROMAGNETICK LOCKS FEATURES AND BENEFITS

  • 1000 lb. hold force rating for high security applications;
  • “Plus” models offer magnetic bond sensor (MBS), adjustable relock time delay (RTD) and door position switch (DPS);
  • Automatic voltage selection (AVS);
  • Symmetrical design with field-selectable handing for optimum placement;
  • Bayonet mount simplifies installation by eliminating the need to hold lock overhead while securing;
  • Armature mount pivot feature compensates for slight opening imperfections;
  • Optional mounting kits available for top jamb mount, double door and HERCULITE® brand glass doors;
  • Aluminum housing in 628 satin finish;
  • ANSI/BHMA 156.23 Grade 1, UL 1034, UL 10C, UL 294, cUL, CFSM certifications;
  • Limited lifetime warranty on magnetic coil assembly.

 

SCHLAGE M400 SERIES OVERVIEW

M400 Series electromagnetic locks or “mag locks” are used as part of an electronic security solution usually combined with push bars, request-to-exit devices and credential readers. They are an easy-to-install alternative to electric strike or electric lock products with a bayonet mounting design that eliminates the need to hold the lock overhead while securing.

M400 Series models are designed specifically with the customer in mind to be robust and easy to configure. Sixteen models cover a full range of needs with 500, 1000, 1300 and 1500 lb. hold force options in single and double configurations, with and without delayed egress. The additional "Plus" models in all configurations add intelligent sensing and reporting features needed for integration with access control systems.

All Schlage electromagnetic locks come with a limited lifetime warranty on the magnetic coil assembly for added confidence in the longevity of these robust products.

 

FEATURES & BENEFITS

Applications

  • Traffic control: 500 lb. rated hold force;
  • High security: 1000 lb. rated hold force;
  • Maximum security: 1500 lb. rated hold force;
  • Delayed egress models in 1300 lb. rated hold force;
  • Fail-safe operation on single or double doors;
  • Top jamb and compatible with HERCULITE® brand glass doors.

Installation

  • Automatic voltage selection (AVS) for 12 and 24 VDC;
  • Bayonet design eliminates need to hold magnet overhead while mounting bracket is installed;
  • Symmetrical design speeds in-field handing;
  • Armature mount pivot feature compensates for slight opening imperfections for a better bond.

 

Delayed egress models

  • Plunger switch and external switch input;
  • Authorized release input;
  • On-board audible alarm and bi-color LED;
  • Fire alarm terminals.

 

“Plus” model integration

  • Connect to most access control system;
  • Includes magnetic bond sensor (MBS), adjustable relock time delay, and door position switch;
  • Optional ATS/LED combines anti-tamper switch (with reporting capability) and with an LED visual status indicator of the magnetic bond at the lock.

 

CERTIFICATIONS

  • UL10C listed for positive pressure fire tests of door assemblies: 3 hour;
  • UL1034 burglary-resistant electronic locking mechanisms;
  • UL294 listed for access control system;
  • ANSI/BHMA A156.23 Grade 1;
  • cUL;
  • CSFM.

Delayed egress models

  • UL 10C listed for positive pressure fire tests of door assemblies: 3 hour ;
  • UL special locking arrangements;
  • Meets NFPA 101 life safety code;
  • ANSI/BHMA 156.24;
  • cUL;
  • CSFM.
  • UL294 listed for access control system.

 

SPECIFICATIONS

Models

  • Plus featured models are designated with a "P" and include magnetic bond sensor (MBS), relocking time delay (RTD) and door position switch (DPS);
  • Delayed egress models are designated by "DE" and are factory configured with a 30-second delay;
  • Plus model also orderable in BOCA compliant, 15-second delay;
  • Single door models convert to double with optional bracket.

Single door

  • M420 and M420P with 500 lb. hold force;
  • M450 and M450P with 1000 lb. hold force;
  • M490, M490P with 1500 lb. hold force;
  • M490DE, and M490DEP with 1300 lb. hold force.

Double door

  • M422 and M422P with 500 lb. per leaf hold force;
  • M452 and M452P with 1000 lb. per leaf hold force;
  • M492, M492P with 1500 lb. per leaf hold force;
  • M490DE-2, and M490DEP-2 with 1300 lb. per leaf hold force.

Power

  • Input voltage: auto selected 12/24 VDC.

Operating temperature

  • 0° to 49°C (32° to 120° F).

Finish

  • Aluminum housing in BHMA 628 satin finish.

 

DOWNLOADS & RESOURCES

Manufacturer Resources

Product Specs

Subcategory:
Electromagnetic Locks
Series:
M400 Series
UL Listing Type:
UL 1034, UL 10C 3 hour fire rating
Holding Force:
1000
Product Group:
Electronic Access Controls
Product Subgroup:
Electromagnetic Locks
ANSI/BHMA:
UL 10C, UL 1034, UL 294, ANSI/BHMA A156.23, cUL, CSFM
Temperature Range:
0 Degrees to 49 Degrees C (32 Degrees to 120 Degrees F)
Commercial/Residential:
Commercial
Battery Operated:
No
Door Type:
Double Doors
Electronic:
Yes
Product Type:
Electromagnetic Locks
Compatibility:
Maximum Security
Fail-safe / Fail-secure:
Fail-Safe
Product Voltage:
12/24VDC
Mounting Method:
Surface
Product Category:
Electronic Access Controls
Product Substrate:
Aluminum
Department:
Door Hardware

Schlage Electronics M452 – Frequently Asked Questions

1) Will the Schlage M452 mag lock secure a pair of doors, or do I need two single locks?
The M452 is built for a pair. It's a double-door electromagnetic lock rated 1000 lb hold force per leaf, so each door gets its own magnet and armature off one assembly. You don't buy two singles. If you're doing single openings elsewhere in the same building and want to keep the hold force consistent, the M450 is the single-door version at the same 1000 lb rating, and Schlage's single-door models convert to double with an optional bracket if you go that route later.
2) Is the M452 mag lock fail-safe? What happens to the doors when power drops?
Fail-safe. Cut the power and the magnets release, so both leaves unlock. That's how every mag lock has to behave on an egress opening, and it's why the M452 needs to be tied into the fire alarm and a request-to-exit path, not just a card reader. If your spec calls for doors that stay locked in a power failure, a mag lock is the wrong product family entirely, you want an electric strike or an electrified lockset in a fail-secure function.
3) M452 or M452P, what's the difference and which one do I order?
Two models. The base M452 gives you automatic voltage selection and nothing else, which is fine if the lock is just a relay-controlled magnet. The M452P adds the monitoring your access control head end usually wants: magnetic bond sensor so you know the magnet is actually holding and not just energized, a door position switch for real door status, and an adjustable relocking time delay. If the system is going to report door state or alarm on a forced door, order the P. Schlage also offers an optional ATS/LED on the Plus models, an anti-tamper switch with reporting plus an LED at the lock showing bond status.
4) What is the closest double door mag lock to the Schlage M452 if a project spec calls for 1500 lb per leaf instead of 1000?
The Schlage M452 is a surface mounted, fail-safe double door electromagnetic lock rated 1000 lb holding force per leaf on 12/24VDC. When the opening calls for a higher rated pair, the Dorma EML320 is a double door electromagnetic lock rated 1500 lb that is also an electrically locked (fail safe) function and carries a fire rating. Within the Schlage M400 family itself, the M492 and M492P are the double door models at 1500 lb per leaf, so a security integrator standardizing on Schlage can step up without changing brands or mounting approach.
5) The Schlage M452 is for a pair of doors. What should be ordered for a single leaf opening?
The M452 is the double door configuration at 1000 lb per leaf. For one leaf, the Schlage M450 and M450P carry the same 1000 lb hold force in a single door body. Outside Schlage, single door surface mag locks include the Alarm Controls 1200 Series, the DynaLock 2050 Series rated 1200 lb for outswing or inswing single or double doors, and the DynaLock 2011 at 1200 lb for outswing single doors. Ordering an M452 for a single leaf leaves a second armature and bracket with nothing to bond to.
6) If the code official requires delayed egress on the opening, is the Schlage M452 the right mag lock?
No. The M452 is a straight fail-safe hold with no egress delay; in the Schlage M400 line the delayed egress models are the M490DE and M490DEP for single doors and the M490DE-2 and M490DEP-2 for pairs, factory configured with a 30-second delay at 1300 lb hold force, with a BOCA compliant 15-second delay also orderable. Across brands, the Alarm Controls 1200DE Series is a delayed egress magnetic lock for a single door, and the DynaLock 2101 Series is a 1200 lb early warning lock. Specifying an M452 where the authority having jurisdiction requires a delay leaves the opening non-compliant.
7) Can I install a Schlage M452 mag lock on an exterior door or in an unheated garage?
Only within 32 to 120 degrees F (0 to 49 C), and the aluminum housing in 628 satin isn't a weather rated enclosure. For a genuinely exposed opening, look at a weather resistant mag lock instead: the Alarm Controls 1200WP Series, the Locknetics WMG Series, or the Dortronics 1000 Series with sealed electronics. Those are single-door products though, so an exposed pair means two of them rather than one M452.
8) Will a Schlage M452 work on Herculite or all-glass doors?
Yes, with the right kit. The M400 Series is compatible with HERCULITE brand glass doors, but the glass door mounting hardware is an optional kit ordered separately from the lock, as is the top jamb kit. Budget for it on a storefront job, the magnet alone won't mount to a glass leaf.
9) Is a mag lock like the M452 the right choice, or should I use an electric strike?
A mag lock is the easier retrofit. There's no door or frame prep, no cutting the jamb for a strike body, and no wiring through a hinge or door loop into the leaf, the M452 surface mounts to the frame head and the armature bolts through the door. That's why it goes on existing openings where an electric strike would mean milling. The tradeoff: it's fail safe only, so it unlocks on power loss and has to be interlocked with the fire alarm and a request-to-exit device, and it holds by magnetic bond rather than a latch. If code or the owner requires the door to remain mechanically latched, use an electric strike or electrified lockset instead.
10) Can I get delayed egress on the Schlage M452?
No. Delayed egress in the M400 Series is a separate model, not an option on the M452. For a pair of doors that's the M490DE-2, or the M490DEP-2 with the Plus monitoring features, both at 1300 lb per leaf with a factory 30 second delay. Those carry ANSI/BHMA A156.24 and meet NFPA 101 life safety code, and they add a plunger switch and external switch input, an authorized release input, an onboard audible alarm with bi-color LED, and fire alarm terminals. Ordering an M452 and trying to add delay downstream won't get you a listed delayed egress opening.
11) How do I know the mag lock is actually holding, not just powered?
That's the magnetic bond sensor, and it only comes on the P version. A plain relay tells you the coil is energized. The MBS on the M452P reports whether the armature is genuinely bonded to the magnet, which is the difference between a door that's secure and a door that's sitting a quarter inch open on a bad armature. Pair that with the door position switch for door status and you can alarm on a forced or propped door from the head end. Standard practice on monitored perimeter openings, and the reason most integrators spec the P.
12) Will a 12 volt power supply run a Schlage M452, or does it require 24 volts?
The M452 uses automatic voltage selection and runs on either 12 or 24 VDC with no jumper to set. Peers in the same voltage window include the Locknetics MG Series at 12/24VDC, the Locknetics WMG Series at 12/24VDC, the ROFU 8512 at 12/24VDC, the ROFU 8031-002 at 12/24VDC, and the Dortronics 1000 Series, which is dual voltage but field selectable rather than automatic. For a property manager swapping a magnet into an existing power supply, the M452 removes the step of confirming which voltage the board is set for.
13) For a fire rated pair of doors, how does the Schlage M452 compare to the Dorma EML320?
Both suit a pair. The M452 is UL 10C listed for positive pressure fire tests of door assemblies at 3 hour, along with UL 1034 burglary-resistant electronic locking mechanisms, UL 294 for access control systems, ANSI/BHMA A156.23, cUL and CSFM. The Dorma EML320 is a double door electromagnetic lock rated 1500 lb with a fire rating and an electrically locked (fail safe) function. An institutional buyer writing to A156.23 Grade 1 and UL 294 will find those specific listings stated for the M452.
14) Is a shear lock the same thing as a Schlage M452?
No. The M452 is a surface mounted electromagnetic lock that holds a pair of doors at 1000 lb per leaf, with the magnet on the frame and the armature on the door face. The ROFU 8031-002 is a shear lock rated 2200 lb holding force on 12/24VDC, monitored; a shear lock is a different mounting concept that works in the plane between the door top and the frame rather than on the surface. The ROFU 8512 is another distinct approach, a standard single magnet with selectable keyhole mount at 1200 lb holding force on 12/24VDC. Holding force numbers do not transfer between these mounting styles, and neither drops into a prep cut for a surface M452.
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Can I return it if it doesn’t work for me?
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Does the Schlage Electronics M452 come with a warranty?
Absolutely. The Schlage Electronics M452 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Schlage Electronics M452?
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