SD-998C-D3AQ Half Inch Tamper Resistant Electric Rim Strike for Exit Devices
The SD 998C D3AQ Half Inch Tamper Resistant Electric Rim Strike is designed for dependable access control applications using rim type exit devices with a Pullman latch bolt. Featuring selectable fail safe or fail secure operation, dual 12 or 24 VDC voltage compatibility, and a non polarized connection, it offers flexible installation across commercial and industrial environments. Its stainless steel construction, tamper resistant design, horizontal adjustment, and surface mount housing eliminate frame cutting while providing reliable performance, high holding strength, and long service life for indoor security door installations.
- Supports 12 or 24 VDC operation with non polarized wiring
- Selectable fail safe or fail secure configuration
- Surface mount housing eliminates frame cutting during installation
- Stainless steel construction with tamper resistant design
- Tested for 250000 cycles with 1500 pound holding strength
UL 294 and UL 1034 listed electric rim strike for trusted access control performance and code-compliant security.
Tamper-resistant design helps protect against unauthorized access and enhances overall door security.
Supports both 12VDC and 24VDC operation with a non-polarized connection for flexible system integration.
Field-selectable fail-safe or fail-secure operation allows configuration to match a wide range of access control requirements.
Surface-mount housing eliminates the need for frame cutting, simplifying installation on metal or wood door frames.
Horizontal adjustment ensures precise latch alignment for smooth and reliable door operation.
Accommodates rim-type exit devices with up to a 3/4" Pullman latch and features a reversible non-handed design for added versatility.
Constructed from durable stainless steel to provide long-lasting performance in demanding indoor environments.
Delivers a 1,500-lb static strength rating for dependable door holding capability and enhanced security.
Tested for 250,000 operating cycles, ensuring reliable long-term performance in high-traffic applications.
Low current draw of 540mA at 12VDC and 270mA at 24VDC helps improve energy efficiency during continuous operation.
Includes multiple spacers for installation flexibility and compatibility with a variety of door and frame configurations.
Designed for use with standard rim-type exit devices, including compatible SECO-LARM models, while maintaining proper emergency exit hardware operation.
| MODEL NAME | SD-998C-D3AQ 1/2" Tamper-Resistant Electric Rim Strike |
| PRODUCT TYPE | Surface-Mount Electric Rim Strike |
| MANUFACTURER | SECO-LARM |
| MODEL NUMBER | SD-998C-D3AQ |
| LATCH COMPATIBILITY | Pullman latch bolt with 1/2" throw |
| MAXIMUM LATCH SIZE | Accommodates up to 3/4" Pullman latch |
| MOUNTING TYPE | Surface mount |
| FRAME COMPATIBILITY | Metal and wood frames |
| FRAME MODIFICATION | No frame cutting required |
| HOUSING MATERIAL | Metal housing |
| STRIKE MATERIAL | Stainless steel |
| OPERATING VOLTAGE | 12/24 VDC |
| VOLTAGE TYPE | DC |
| CONNECTION TYPE | Non-polarized |
| CURRENT DRAW @12VDC | 540mA |
| CURRENT DRAW @24VDC | 270mA |
| FAIL MODE | Field-selectable Fail-Safe or Fail-Secure |
| HORIZONTAL ADJUSTMENT | Yes |
| DESIGN | Reversible, non-handed |
| TAMPER RESISTANT | Yes |
| STATIC STRENGTH | 1,500 lb (6673N) |
| DURABILITY TEST | 250,000 operating cycles (UL tested) |
| UL 294 LISTED | Yes |
| UL 1034 LISTED | Yes |
| UL EXIT HARDWARE COMPATIBILITY | Intended for use with UL Listed Exit Hardware |
| EMERGENCY UNIT COMPATIBILITY | Does not impair emergency unit operation |
| PANIC HARDWARE COMPATIBILITY | Does not impair panic hardware operation |
| APPLICATION | Access control doors with rim-type exit devices |
| EXIT DEVICE COMPATIBILITY | Standard rim-type exit devices |
| SECO-LARM COMPATIBILITY | SD-962AR-36A |
| SECO-LARM COMPATIBILITY | SD-962AR-36G |
| SPACERS INCLUDED | 1 × 1/16", 2 × 1/8" |
| SPACER THICKNESS | 1.5mm and 3mm |
| INSTALLATION ORIENTATION | Universal |
| HANDED | Non-handed |
| INDOOR/OUTDOOR | Indoor use only |
| LOCK TYPE | Electric Rim Strike |
| RELEASE METHOD | Electrically actuated |
| POWER REQUIREMENT | 12VDC or 24VDC |
| SELECTABLE OPERATION | Yes |
| FIELD CONFIGURABLE | Yes |
| SECURITY FEATURE | Tamper-resistant construction |
| INSTALLATION DIFFICULTY | Simplified surface-mount installation |
| FRAME CUTTING REQUIRED | No |
| MOUNTING SURFACE | Door frame |
| DOOR HARDWARE TYPE | Rim exit devices with Pullman latch |
| LATCH THROW COMPATIBILITY | 1/2" |
| HOUSING STYLE | Surface-mounted enclosure |
| DURABILITY | Heavy-duty commercial construction |
| ACCESS CONTROL USE | Yes |
| COMMERCIAL APPLICATION | Yes |
| LOW POWER CONSUMPTION | Yes |
| ELECTRICAL POLARITY | Non-polarized wiring |
| ADJUSTABILITY | Horizontal adjustment for alignment |
| CORROSION RESISTANCE | Stainless steel construction |
| DOOR TYPE | Doors equipped with rim exit devices |
| INSTALLATION ENVIRONMENT | Indoor commercial or institutional applications |
| ACCESSORY AVAILABLE | SD-998SMB Surface-Mount Bracket (sold separately) |
SD-998C-D3AQ 1/2" Tamper-Resistant Electric Rim Strike from SECO-LARM is designed to provide secure, reliable electronic locking for rim-type exit devices with a 1/2" Pullman latch bolt. Its surface-mount design eliminates the need for frame cutting, making installation faster and more efficient on both metal and wood door frames. Featuring field-selectable fail-safe or fail-secure operation and support for 12/24 VDC, this electric rim strike is ideal for commercial access control applications requiring durability and flexibility.
Built for Security and Long-Term Performance
Engineered with a tamper-resistant stainless steel construction, the SD-998C-D3AQ delivers dependable performance in demanding commercial environments. It offers a 1,500 lb static strength rating and has been UL tested for 250,000 operating cycles, ensuring long-lasting reliability. The non-polarized wiring and reversible, non-handed design simplify installation while horizontal adjustment allows precise alignment for smooth operation.
- UL 294 and UL 1034 Listed
- Tamper-resistant stainless steel construction
- 1,500 lb (6673N) static holding strength
- Tested for 250,000 operating cycles
- Surface-mount design eliminates frame cutting
- Horizontal adjustment for precise alignment
- Reversible non-handed configuration
Flexible Integration for Commercial Access Control
Compatible with standard rim-type exit devices, including the SECO-LARM SD-962AR-36A and SD-962AR-36G, this electric strike supports Pullman latch bolts up to 3/4". It operates on either 12VDC or 24VDC with low current consumption and includes spacers for installation flexibility. Designed for indoor commercial applications, it integrates seamlessly with modern access control systems while maintaining emergency exit hardware functionality.
- Commercial office buildings
- Retail stores and shopping centers
- Schools and educational facilities
- Healthcare and government buildings
- Access-controlled emergency exit doors
For installers and security professionals seeking a tamper-resistant electric rim strike with proven durability, easy installation, and dependable operation, the SECO-LARM SD-998C-D3AQ delivers an excellent solution for commercial access control systems while maintaining compliance with emergency exit hardware requirements.
Technical Specifications
- Model: SD-998C-D3AQ
- Type: 1/2" Surface-Mount Electric Rim Strike
- Operating Voltage: 12/24 VDC
- Operation: Field-selectable Fail-Safe or Fail-Secure
- Current Draw: 540mA @ 12VDC, 270mA @ 24VDC
- Construction: Stainless Steel
- Mounting: Surface-mount on metal or wood frames
- Latch Compatibility: Pullman latch bolt up to 3/4"
- Adjustment: Horizontal adjustment
- Connection: Non-polarized wiring
- Static Strength: 1,500 lbs (6673N)
- Cycle Rating: 250,000 cycles (UL Tested)
- Included Accessories: 1× 1/16" spacer, 2× 1/8" spacers
- Application: Indoor use only
- Certifications: UL 294 and UL 1034 Listed
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