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M490G Magnetic Gate Locks

Magnetic gate lock with 1,500 lb. hold force rating; install on sliding and swinging gates.


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The Schlage M490G is an ANSI/BHMA outdoor certified electromagnetic lock designed for exterior sliding and swinging gates. Heavy-duty plating assures a low maintenance device that accommodates misalignment problems while supplying superior hold force. A modified top jamb mounting bracket allows the M490G mag lock to mount to any gate frame or post in various positions. The M490G can be field configured for either 12 or 24 VDC operation. The magnetic bond sensor (MBS) and gate status monitor (DPS) are both standard.

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

 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. 


  • Gate model in 1,500 lb. rated hold force
  • For use on all types of sliding and swinging gates
  • Can handle salt spray environments and extreme temperatures
  • Weather-resistant electroless nickel-plate finish resists corrosion on mating surfaces



  • Field selectable 12 or 24 VDC operation
  • Universal mounting brackets for swinging or sliding gate applications
  • 1/2” EMT compression fitting protects hookup wires from weather and vandalism
  • 2-foot wire leads
  • Accommodates gate misalignment



  • Connects to most access control systems
  • Includes magnetic bond sensor and door position switch

M490G model

  • Field-selectable 12 or 24 VDC
  • Built-in voltage spike supressor
  • Standard with magnetic bond sensor (MBS) and door position switch (DPS)
  • Universal mounting brackets for swinging or sliding gate applications
  • Accomodates gate misalignment
  • 1⁄2" EMT compression fitting protects hookup wires from weather and vandalism
  • No moving parts; low maintenance


Single gate

  • M490G with 1,500 lb. hold force
  • Current draw .65A @ 12 VDC, .35A @ 24 VDC
  • Dimensions: 3" H x 11" L x 1-3/4" D
  • Weight: 14 lbs.


Operating temperature

  • Temperature -35° to 66°C (-31° to 151° F)



  • Electroless nickel plated finish
  • Corrosion and weather resistant for exterior use


Other technical info

  • Wire gauge 14-22 AWG
  • ANSI/BHMA A156.23 outdoor rated
Filler plates and angle brackets specifications
Filler Plates 
Width x HeightPlate no.
1 1/4" x 1/8"49G1F
1 1/4" x 1/4"49G2F
1 1/4" x 3/8" 49G3F
1 1/4" x 1/2"49G4F
1 1/4" x 5/8"49G5F
3/4"  x 1/2" 49G6F
3/4" x 5/8" 49G7F
3/4" x 3/4"49G8F
Angle brackets 
Width x HeightBracket no.
1" x 1"49G1A
1 1/2" x 1" 49G2A
1 1/2" x 1 1/2"49G3A
1 1/2" x 2" 49G4A
1 1/2" x 2 1/2" 49G5A

Category information


Product information


Technical resources

Installation Instructions


In accordance with California PROP65 - WARNING WARNING: Cancer & Reproductive Harm

Need Replacement Parts?

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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.

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