HES 10790021 Fp:852m-630 Electric Strike
When you need a fail-secure electric strike that holds the line on high-traffic openings without constant service calls, the HES 10790021 delivers field-proven mechanical reliability in a compact mortise form factor. Designed for aluminum or hollow metal frames with mortise locksets, this strike handles the daily punishment of commercial door schedules while maintaining consistent locking performance across thousands of cycles.
Key Features
- Fail-secure operation keeps the door locked during power failure, maintaining security perimeter integrity
- Mortise configuration integrates directly with standard mortise locksets for streamlined retrofits and new construction
- 630 satin stainless steel finish resists corrosion and wear in high-humidity or coastal environments
- Compact strike body fits tight frame pockets where standard strikes won't clear existing hardware
- Field-reversible keeper accommodates both left-hand and right-hand door configurations without ordering separate SKUs
- 12/24 VDC operation simplifies low-voltage access control integration with standard panels
- Continuous duty rating supports extended unlock periods for high-traffic zones without thermal concerns
- Pre-wired leads reduce installation time and eliminate terminal strip troubleshooting
The FP:852M series addresses a specific integration challenge: you need mortise strike performance in frames where depth and width are constrained by existing prep or structural limitations. The 630 stainless finish holds up in exterior vestibules, parking garage stairwells, and other environments where painted strikes quickly degrade. The fail-secure default state means you're not relying on backup power to maintain lockdown during outages—the strike defaults to secured, which matters for perimeter doors, IT rooms, and any opening where security takes priority over egress convenience.
Field configuration flexibility reduces your stock complexity. The reversible keeper means one part number covers both swing directions, and the dual-voltage compatibility lets you match whatever your panel outputs without stepping down or converting. For integrators running commercial projects where the frame schedule shows mortise locks and the spec calls for electric strikes that actually last, the HES 10790021 gets the job done without the callbacks.
