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M490DE Delayed Egress Mag Locks

Delayed egress electromagnetic lock with 1,300 lb. hold force rating for maximum security applications; install on single or double doors.


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The Schlage M490DE is designed specifically for delayed egress applications and meets NFPA 101 Life Safety Code. The M490DE has a 15-second delayed egress timer with audible alarm which can be configured to trigger by an internal plunger switch, or by external contacts such as a request-to-exit push bar. Standard features include automatic voltage selection, field-selectable handing, internal plunger switch, and bayonet mounting bracket for easy hands-free installation. The "Plus" model adds 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. 

 Dual Voltage 12/24 VDC

 Field Configurable

 Monitoring Options


 Heavy Duty

 Status Indicator

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Mag Locks

For frequently asked questions, educational resources and technical product materials visit the Mag Locks 101 page. 


  • Delayed egress models in 1,300 lb. rated hold force; outswinging doors only
  • Fail-safe operation on single or double doors
  • Optional mounting kit available for HERCULITE® brand glass doors



  • 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


Integration - “Plus” model 

  • Connects to most access control systems
  • Includes magnetic bond sensor (MBS), adjustable relock time delay, door position switch, and door prop timer

All 490DE models for outswinging doors only

  • All models feature Automatic Voltage Selection (AVS) 
  • Plus featured models are designated with a "P" and include magnetic bond sensor (MBS), relocking time delay (RTD), door position switch (DPS), and door prop timer
  • Plus model also orderable in BOCA compliant, 15-second delay*
  • Optional mounting kits available for HERCULITE® brand glass doors



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


Single door

  • M490DE and M490DEP with 1,300 lb. hold force
  • Current draw .75A @ 12 VDC, .45A @ 24 VDC
  • Dimensions: 3" H x 12-1/2" L x 3-1/16" D
  • Weight: 16 lbs.


Double door

  • M490DE-2 and M490DEP-2 with 1300 lb. per leaf hold force
  • Current draw 1.25A @ 12 VDC, .76A @ 24 VDC
  • Dimensions: 3" H x 25-1/16" L x 3-1/16" D
  • Weight: 32 lbs.


*Models with 30-second delay are available; requires fire marshall letter of approval


Operating temperature

  • Temperature 0° to 49°C (32° to 120° F)



  • Aluminum housing in 628 satin finish


Other technical info

  • Wire gauge 14-22 AWG
  • UL 10C listed for positive pressure fire tests of door assemblies: 3 hour 
  • UL special locking arrangements 
  • Meets NFPA 101 life safety code 
  • UL 294 listed for access control system
  • ANSI/BHMA 156.24 
  • cUL
  • CSFM
  • BOCA compliant option available
Filler plates and angle brackets specifications
Length12 1/2"
Filler Plates 
Width x HeightPlate no.
1 1/4" x 1/8"4901F
1 1/4" x 1/4"4902F
1 1/4" x 3/8" 4903F
1 1/4" x 1/2"4904F
1 1/4" x 5/8"4905F
3/4"  x 1/2" 4906F
3/4" x 5/8" 4907F
3/4" x 3/4"4908F
Angle brackets 
Width x HeightBracket no.
1" x 1"4901A
1 1/2" x 1" 4902A
1 1/2" x 1 1/2"4903A
1 1/2" x 2" 4904A
1 1/2" x 2 1/2" 4905A

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Additional Resources

Did You Know?

The innovative Schlage Control™ Mobile Enabled Smart Locks were introduced in 2019 for the multifamily market—allowing residents to use their mobile phone as a key to their apartment.

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As part of Allegion’s family of pioneering brands, Schlage benefits from the strength, efficiencies, resources, and integration from a global power. In turn, we pass those advantages on to you.

Allegion helps keep people safe and secure where they live, work and visit. With more than 30 brands sold worldwide, we specialize in security around the doorway and beyond. It’s the power of one.

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