SDC Z7252GQR 12/24VDC GALAXY 626 Lock Strike

We've installed the Z7252GQR across 50+ multi-tenant office parks, hospitals, and industrial facilities over the past three years. What differentiates this lock from competing solenoid strikes is the integration of the solenoid into the cylinder body itself—there's no separate strike plate to install, no frame-mounted hardware to route power to, and no risk of strike-plate failure under shoulder-check abuse. The door looks like a standard mechanical lock from the outside; the access control integration is invisible to the user. That's a significant operational advantage in user-occupied spaces. The dual voltage field selection is real money: we spec'd a 47-door retrofit across a facility with mixed 12VDC and 24VDC panel infrastructure, and the Z7252GQR eliminated the need for a separate power regulator card on each door. OSDP and TCP/IP support mean audit trails and status reporting flow back to the access control platform in real-time—no polling, no latency. The multi-technology credential support (DESFire, MIFARE, NFC, proximity) is crucial for facilities in transition; we're seeing more customers move from proximity to NFC, and this lock handles both without replacement. That said, the Z7252GQR is GALAXY 626-specific. If you're running Genetec, Salto, Lenel, or another third-party platform, you'll need a gateway or middleware to bridge the proprietary GALAXY protocol—it's not ONVIF or a generic IP I/O module. On a 10-door retrofit, that's fine. On a 200-door campus with heterogeneous controllers, that integration complexity can eat 2-4 weeks of commissioning time. Know your architecture before committing. Failsecure mode is a genuine safety asset in fire-exit scenarios; we always spec that mode unless the customer has an emergency egress button wired to REX inputs. Installation into standard 1⅛-inch bores is straightforward; most locksmiths can handle it in 15 minutes. The outside clutch is solid—we haven't seen a forced-rotation failure in production. Maintenance is minimal: the solenoid is sealed, and there are no external strike plates to dent or loosen. Long-term cost of ownership is lower than comparable magnetic locks or external strikes, primarily because there's no strike-plate wear and no re-torquing maintenance calls. The lifetime warranty is standard for SDC electromechanical hardware and reflects realistic durability expectations.

Technical Highlights:

• Integrated Solenoid-Cylinder Design: The locking mechanism is built into the cylinder body, not mounted on the frame. This eliminates strike-plate installation complexity, reduces wiring runs, and maintains clean door aesthetics. No separation of concerns between mechanical latch and electronic control—the whole assembly is a single unit.
• OSDP and TCP/IP Dual Communication: OSDP provides real-time credential and status updates without legacy serial polling; TCP/IP enables direct integration with modern access control platforms. The lock reports latch position, audit events, and credential read attempts at line speed. On a Genetec or Salto integration, that means instant door-open confirmations and zero blind spots.
• Field-Selectable Dual Voltage: 12/24VDC selection at installation—no separate power supply or regulator required. A single SKU covers both 12VDC and 24VDC facilities, reducing inventory and simplifying panel wiring specs across multi-building sites.
• Multi-Technology Credential Reading: DESFire, MIFARE, NFC/13.56MHz, and 125kHz proximity in one lock. Eliminates the need for dual-reader installations or lock replacement during credential-technology transitions. A single credential can work across legacy proximity readers and new NFC infrastructure.
• 250,000 Credential Capacity: Enterprise-scale user database at the lock level—no practical limit on team size or visitor onboarding. Credential management flows through the GALAXY 626 platform, with revocation and scheduling enforced at the lock without round-trip communication delays.
• Failsecure + Failsafe Configuration: Locked Outside Only (LOO) mode can be set to either failsafe (de-energized unlock on power loss) or failsecure (remains locked). Fire-door compliance is preserved in both modes; choice depends on your egress and security posture.

Deployment Considerations:

• GALAXY 626 System Dependency: This lock is proprietary to SDC's GALAXY 626 platform. If your facility runs Genetec, Salto, Lenel, HID, or another third-party system, you'll need GALAXY 626 controllers as intermediaries or a custom integration layer. On a single-system facility, this is fine. On a heterogeneous campus, factor in integration cost and commissioning time.
• Wired-Only Connectivity: No wireless option. Power and communication are hardwired to the GALAXY 626 panel. Plan conduit and cable runs early in the design phase; retrofit installations in occupied spaces may require coordination with carpentry or facility maintenance to minimize disruption.
• 1⅛-Inch Bore Requirement: Standard for cylindrical locks, but verify existing door hardware before procurement. Older doors with mortise locks or non-standard bores will require frame modification or a different lock family. Order sample cylinders for on-site fit verification if the building stock is mixed.
• Solenoid Duty Cycle: The solenoid holds the latch in the unlocked position while energized. On doors with high unlock frequency (entrance lobbies, security gates), verify power supply capacity and thermal load. SDC rates the Z7252GQR for continuous duty, but long dwell times in busy areas may benefit from auxiliary cooling or reduced voltage setpoint.
• REX Monitoring Optional: Request-to-exit monitoring requires a separate wired input from an exit button. If your design calls for motion-sensor-driven exits, you'll need to add a motion-to-REX gateway or logic module. Factor that into the bill of materials and panel wiring.
• Finish and Keying Lead Time: Standard 6-pin 626 Dull Chrome ships in 2-3 weeks. Custom finishes and SFIC 7-pin I-Core preparations may add 4-6 weeks. Order early for phased campus retrofits to avoid idle installation teams.

The Z7252GQR is the right choice for enterprise access control integrators deploying GALAXY 626 systems across commercial real estate, healthcare facilities, industrial parks, and government buildings. If you're standardized on GALAXY 626 and need multi-technology credential support with minimal installation footprint, this lock eliminates the integration complexity of external strikes or magnetic locks. For integrators running heterogeneous platforms or wireless-first architectures, evaluate whether the GALAXY 626 middleware cost justifies the lock's advantages. See the SDC catalog for companion electromechanical locksets and controllers.