M420/422 Mag Locks

Applications

• Traffic control: 500 lb. rated hold force
• Fail-safe operation on single or double doors
• Optional mounting kits available for top jamb mount, double door and 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

Integration - “Plus” model

• Connects to most access control systems
• 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

All M420 models

• All models feature Automatic Voltage Selection (AVS) 
• Plus featured models are designated with a "P" and include magnetic bond sensor (MBS), adjustable relocking time delay (RTD) and door position switch (DPS) 
• Plus models have option for combined anti-tamper switch with magnetic bond sensor in one kit (ATS/LED)
• Single door models convert to double with optional bracket
• Optional accessories available for use on top jamb or with HERCULITE® brand glass doors

Single door

• M420 and M420P with 500 lb. hold force
• Current draw .75A @ 12 VDC, .38A @ 24 VDC
• Dimensions: 2-1/2" H x 9" L x 1-3/8" D
• Weight: 6 lbs.

Double door

• M422 and M422P with 500 lb. per leaf hold force
• Current draw 1.5A @ 12 VDC, .76A @ 24 VDC
• Dimensions: 2-1/2" H x 18-1/16" L x 1-3/8" D
• Weight: 12 lbs.

Operating temperature

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

Finish

• Aluminum housing in 628 satin finish

Other technical info

• Wire gauge 14-22 AWG

• UL10C listed for positive pressure fire tests of door assemblies: 3 hour
• UL1034 burglary-resistant electronic locking mechanisms 
• UL 294 listed for access control system
• ANSI/BHMA A156.23 Grade 1 
• cUL
• CSFM

Product information

• M420 data sheet

Category information

• Electronic Access Control catalog

Technical resources 

Installation Instructions

• M400 Series Single Lock Installation Instructions
• M400 Series Double Lock Installation instructions
• M400 Series TJ Bracket Installation instructions
• M400 Series Herculite Door Bracket (HDB) Installation Instructions 
  

Templates

• M400-Series M420 Standard Application Template
• M400-Series M420TJ Top Jamb Application Template
• M400-Series M422 Standard Application Template
• M400-Series M422TJ Top Jamb Application Template
• M400 Series Electromagnetic Locks, Retrofit Overlays Templates (English)
• M400 Series General Product Dimensions

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