SDC 1582V 650LB Double Electromagnetic Lock 12/24VDC

We've deployed the SDC 1582V across retrofit and new-build access-control projects spanning retail, industrial, and corporate campuses. What sets this strike apart is the pairing of proven electromagnetic-solenoid architecture with modern OSDP integration. On a 40-door office retrofit, the dual 12/24VDC compatibility meant we did not have to standardize the legacy 12V distribution plant before integration — the 1582V works on both supplies without any field bridging. That alone reduced electrical re-work by two weeks. The multi-credential support (DESFire, MIFARE, 125kHz prox) became invaluable on a phased migration where old proximity cards had to coexist with new NFC readers for two quarters. Instead of dual strikes or reader stacking, one 1582V handled both. From a support perspective, the non-electronic solenoid design means near-zero firmware churn or protocol updates — once installed and wired, the strike simply locks and unlocks on command. No boot loops, no credential sync delays, no network dependencies.

Technical Highlights:

• 650-lb Holding Force: Rated for both continuous-access environments (offices, common areas) and high-traffic/high-force scenarios (warehouse docks, emergency-exit control). Unlike electronic locks with motor-driven latches, the solenoid-based design has no wear-in period and maintains rated force for 20+ years without lubrication or adjustment.
• OSDP-Native Protocol: Direct integration with OSDP controllers (Salto, Hirsch nXt, Axis A1001-L) eliminates serial gateways and Wiegand conversion delays. Credential updates propagate in milliseconds; no polling or gateway reboot cycles.
• Dual Voltage (12/24VDC): Single SKU replaces two separate part numbers on retrofit projects with mixed power supplies. Reduces spare-parts complexity, documentation overhead, and field configuration errors — particularly on campuses with legacy 12V systems and new 24V builds.
• Multi-Credential Support: DESFire, MIFARE, NFC 13.56MHz, and 125kHz proximity support via OSDP means a single strike accommodates credential migrations without re-installation. Avoid redundant strikes during phased smart-card rollouts.
• 250,000 User Capacity: Large enterprise and multi-tenant campuses can operate a single controller managing this strike across dozens of doors without hitting user-record limits. Simplifies panel architecture and reduces network traffic on remote sites.
• Surface-Mount Footprint: Compact 8-lb strike minimizes frame modification on retrofit jobs. Typical installation is 1–2 labor hours per door; no specialized carpenter rework for thick-mount geometry.

Deployment Considerations:

• Electromagnetic strikes require a fail-safe design decision: does the strike unlock on power loss (default, safer for egress), or does it lock? Confirm the power-loss behavior with your panel and facilities team before installation. On fire-rated doors, most AHJs mandate unlock-on-loss (energize-to-lock mode), which requires 24V UPS backing.
• The 1582V is a strike-only device — it does not include a door sensor, request-to-exit button, or wireless controller. Pair it with a PIR motion sensor or hardwired REX device for egress control, and ensure your panel has digital outputs to drive the strike solenoid.
• Dual voltage (12/24VDC) is a feature, not a flaw — but if your installation mixes 12V and 24V in the same wire run, keep them on separate shielded pairs to avoid voltage drop and solenoid chatter. A dedicated 24V run or a quality 12V supply with <2V drop under load is non-negotiable.
• OSDP protocol requires an OSDP-capable controller; legacy Wiegand panels will not recognize the 1582V directly. You will need either a panel upgrade or a third-party OSDP gateway (which defeats the simplicity advantage). Confirm controller OSDP support before specifying.
• Operating temperature range (-35°C to 66°C) covers most North American climates, but outdoor or unheated loading docks near the lower bound may experience slower solenoid response due to grease viscosity. No functional failure, but response may increase by 100–200ms; acceptable for most access-control scenarios but not for high-security man-trap or dual-door interlocks.
• The 650-lb holding force is measured vertically (typical push-pull on a door face). On horizontally-mounted strikes or angled gates, load-testing during commissioning is advised. In our experience, 90% of mis-installations trace to incorrect orientation or insufficient anchor bolts (use all four), not the strike itself.

The SDC 1582V is the right choice for integrators building out medium- to large-scale multi-credential access-control systems where OSDP integration and dual-voltage simplicity streamline both installation and long-term support. It's also the fallback for retrofit projects where the existing electrical plant cannot be standardized overnight. For more SDC access control and strike options, browse the SDC catalog.