8500 Series

The 8500 series is a fire rated, compact, high performance electric strike featuring a unique concealed design for use with mortise locksets without a deadbolt. Designed for fast, convenient installation, the 8500 installs with little or no modification to the frame. Simply remove the existing strike plate, remove the dust box and install. Its strength is derived from a unique keeper pin locking design, enabling the 8500 to exceed Grade-1 ratings. This unique electric strike complies with NFPA 80-07 guidelines for retrofit into fire-rated frames. The 8500 accommodates mortise latchbolts up to 3/4" throw.


  • UL 10C-fire-rated, 3 hour (fail secure)
  • CAN4-S104(ULC-S104) fire door conformant
  • NFPA 80-07 Compliant
  • UL 1034 burglary-resistant listed and suitable for outdoor use
  • UL 294 (6th Edition) listed
  • ANSI/BHMA A156.31, Grade 1
  • NFPA -252 fire door conformant
  • ASTM-E152 fire door conformant
  • Patents Pending

Frame application

  • Metal
  • Wood


  • .24 Amps @ 12VDC
  • .12 Amps @ 24VDC
  • DC continuous duty/AC intermittent
    duty only

 Standard Features

  • No cutting of the face of the frame
  • Stainless steel construction
  • Tamper resistant
  • Static strength 1,500 lbs
  • Dynamic strength 70 ft-lbs
  • Endurance 500,000 cycles
  • Field selectable fail safe / fail secure
  • Dual voltage 12 or 24 VDC/VAC
  • Non-handed
  • Metal or Wood Frame
  • Internally mounted solenoid
  • Accommodates 3/4” mortise latchbolts
  • Strike body depth 1-5/16”
  • Plug-in connector
  • Full pocket shims for horizontal adjustment
  • Five year limited warranty

Optional Features

  • 4 faceplate options
  • Three deadlatch platforms to work with all major
    mortise locksets
  • LBM - Latchbolt Monitor
  • LBSM - Latchbolt Strike Monitor

Faceplates & Accessories

Faceplate Options

The 8500 faceplate options kits combine two different faceplate pocket styles with three different deadlatch profiles for compatibility with a wide variety of mortise locksets. HES 8500 faceplate option kits are lock specific. There are two faceplates included in each kit: a standard faceplate and a faceplate with a wider pocket to address less-than-ideal sagging door conditions.

  • 851M (4-7/8” x 1-1/4”) For use with compatible mortise locksets: Sargent 8100, 8200, 9200 ANSI/BHMA Numbers: #E05031, #E09321, #E09322, #E09323
  • 852K (4-7/8” x 1-1/4”, radius corners & flat faceplate) For use with compatible mortise locksets: Corbin Russwin ML 2000 ANSI/BHMA Numbers: #E05031, #E09321, #E09322, #E09323
  • 852L (4-7/8” x 1-1/4”) For use with compatible mortise locksets: Schlage L9000 ANSI/BHMA Numbers: #E05031, #E09321, #E09322, #E09323.
  • 852M (4-7/8” x 1-1/4”) For use with mortise locksets: Yale 8700* & 8800, Accurate, Falcon, Kaba Ilco/Unican ANSI/BHMA Numbers: #E05031, #E09321, #E09322, #E09323.

*Manufactured after 2005.


UL Certifications & Listings