Description
HES 8500-12/24D-630 Concealed Electric Strike Body for Mortise Locksets | Satin Stainless Steel
The HES 8500-12/24D-630 Electric Strike Body is a fire-rated, Grade 1 concealed electric strike engineered for compatible mortise locksets without a deadbolt. Its compact, high-performance design installs inside the frame, minimizing visible hardware and helping preserve the architectural appearance of commercial door openings.
Designed for fast retrofit installation, the HES 8500 requires little or no modification to many existing frame preparations and does not require cutting to the face of the frame. The strike accommodates mortise latchbolts with up to a 3/4-inch throw and combines dual-voltage 12/24 VAC/VDC operation, field-selectable fail-secure or fail-safe operation, stainless steel construction and a satin stainless steel finish.
Important: Strike Body Only—Faceplate Ordered Separately
The HES 8500-12/24D-630 is the electric strike body only. The lock-specific faceplate option kit is not included and must be ordered separately unless a compatible existing HES faceplate kit will be reused. Verify the mortise lock manufacturer and model before selecting the required 851M, 852K, 852L or 852M faceplate option kit.
Electrical & Access Control Features
Mechanical and Installation Features
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Strength and Performance
Listings and Certifications
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Why Installers Choose the HES 8500 Series
The HES 8500 Series is frequently selected when an opening combines a commercial mortise lockset with a requirement for minimal visible frame alteration. Unlike a surface-mounted electric strike, the 8500 body remains concealed inside the frame and does not require cutting across the face of the frame.
Its keeper-pin locking design provides 1,500 pounds of static strength, while the lock-specific deadlatch platform maintains the proper relationship between the mortise latchbolt, deadlatch and electric strike. Full-pocket shims provide horizontal adjustment to help installers address door play and alignment conditions.
The result is a strong, fire-rated access control solution that combines architectural appearance, installation efficiency and Grade 1 performance for compatible commercial mortise lock openings.
HES 8500-12/24D-630 Technical Specifications
| Manufacturer | HES |
| Model | 8500-12/24D-630 |
| Product Type | Concealed electric strike body |
| Lock Application | Compatible mortise locksets without a deadbolt |
| Latchbolt Capacity | Up to 3/4-inch throw |
| Voltage | 12 or 24 VAC/VDC |
| Current Draw at 12 VDC | 240 mA |
| Current Draw at 24 VDC | 120 mA |
| Duty Rating | DC continuous duty; AC intermittent duty only |
| Operating Mode | Field-selectable fail secure or fail safe |
| Factory Configuration | Fail secure |
| Handing | Non-handed |
| Construction | Stainless steel |
| Finish | 630 Satin Stainless Steel |
| Strike-Body Depth | 1-5/16 inches |
| Static Strength | 1,500 lbs. |
| Dynamic Strength | 70 ft-lbs. |
| Endurance | 1,000,000 cycles |
| Faceplate Included | No—lock-specific option kit ordered separately |
Selecting the Correct HES 8500 Faceplate Option Kit
HES 8500 faceplate option kits are lock specific. Each option kit includes two faceplates: a standard faceplate and a faceplate with a wider pocket intended to help address certain door-sag conditions.
| Option Kit | Compatible Mortise Locksets |
|---|---|
| 851M | SARGENT 8100, 8200 and 9200 Series |
| 852K | Corbin Russwin ML2000 Series |
| 852L | Schlage L9000 Series |
| 852M | ASSA ABLOY ACCENTRA 8700 manufactured after 2005 and 8800; Accurate, Falcon and Kaba Ilco/Unican mortise locksets |
Do not select the faceplate based only on its dimensions. Verify the exact lock manufacturer, series, latchbolt and deadlatch configuration. HES instructs installers not to use the 8500 with lock brands or models that are not listed as compatible without obtaining application assistance.
Standard, LBM and LBSM Ordering Options
| Configuration | Monitoring | Recommended Use |
|---|---|---|
| 8500 Standard | No monitoring switch | Openings that do not require latch or strike-status feedback |
| 8500-LBM | Latchbolt Monitor | Applications requiring latchbolt-status reporting |
| 8500-LBSM | Latchbolt Strike Monitor | Applications requiring expanded latchbolt and strike-status monitoring |
The 8500-12/24D-630 shown on this page is the standard non-monitored strike body unless the model number specifically includes the LBM or LBSM option.
HES 8500 Compared with Other HES Electric Strikes
Electric strikes should be selected according to the installed lock hardware, latch configuration, frame construction and required listings. These HES families are not interchangeable.
| HES Series | Primary Lock Application | Installation Style | Best Selection Reason |
|---|---|---|---|
| HES 8500 | Mortise locksets without a deadbolt | Concealed; no cutting to frame face | Clean appearance and fire-rated mortise-lock solution |
| HES 8000 | Cylindrical locksets | Compact concealed installation | Concealed solution for cylindrical latchbolts |
| HES 1006 | Multiple commercial lock applications with the proper faceplate | Conventional in-frame electric strike | Heavy-duty strength and broad application flexibility |
| HES 9600 | Rim exit devices with Pullman latchbolts | Surface mounted | Reduced frame preparation for compatible rim exit devices |
When Should You Choose the HES 8500?
Choose the HES 8500 when the opening uses a listed compatible mortise lockset without a deadbolt and a concealed, fire-rated electric strike is preferred. It is particularly well suited to finished commercial openings where preserving the appearance of the frame is important.
Common applications include commercial offices, healthcare facilities, educational campuses, government buildings, hospitality properties and other controlled openings that require Grade 1 performance with minimal visible frame modification.
Installation and Fire-Rating Guidance
The HES 8500 is designed to fit an existing 4-7/8-inch frame preparation with minimal preparatory work. Removal of the existing dust box may be required to provide sufficient room for the strike body and electrical wiring. The installer must verify that the opening is plumb and square and that the latchbolt is in good operating condition.
Important fire-rating notice: The strike ships in fail-secure mode. According to HES, converting the 8500 to fail-safe operation negates the unit’s fire rating. Fire-rated openings must be configured and installed in accordance with the HES instructions, applicable codes and the authority having jurisdiction.
Professional installation is recommended. Verify input voltage with a multimeter before connecting the strike and follow all applicable access control, electrical, fire-door and life-safety requirements.
Frequently Asked Questions
What type of lock works with the HES 8500?
The HES 8500 is designed for listed compatible mortise locksets without a deadbolt. It accommodates mortise latchbolts with up to a 3/4-inch throw.
Is a faceplate included with the 8500-12/24D-630?
No. This is the electric strike body only. A compatible 851M, 852K, 852L or 852M lock-specific faceplate option kit must be ordered separately unless a suitable existing kit will be reused.
Does the HES 8500 work with mortise locks that have a deadbolt?
No. The 8500 is specifically designed for compatible mortise locksets without a deadbolt.
Does the HES 8500 support AC and DC power?
Yes. The strike supports 12 or 24 VAC/VDC. DC operation is continuous duty, while AC operation is intermittent duty only.
Is the HES 8500 fail secure or fail safe?
The strike ships in fail-secure mode and can be converted to fail-safe operation. However, converting it to fail safe negates its fire rating.
Does the 8500 require cutting to the face of the frame?
No cutting is normally required to the face of the frame. Some preparation behind the face of the frame, including dust-box removal, may be required.
Is this model monitored?
No. The standard 8500-12/24D-630 does not include monitoring. Select an LBM or LBSM version when latchbolt or strike-status feedback is required.
What does the 630 finish mean?
Finish 630 identifies satin stainless steel, a widely specified architectural hardware finish for commercial openings.
Manufacturer Documentation
Review the official HES documentation for lock compatibility, faceplate selection, wiring, frame preparation, monitoring options and adjustment procedures.
Order Genuine HES Electric Strikes and Faceplates
ID Enhancements supplies genuine HES electric strikes, strike bodies, faceplate option kits and access control hardware for professional security installations. The HES 8500-12/24D-630 concealed electric strike body provides a clean, fire-rated and high-strength access control solution for compatible commercial mortise locksets without deadbolts.
