SDC Z7250E5QIC7PKA 12/24V Electronic Cylindrical Lock
The SDC Z7250E5QIC7PKA is an Electra™ 7200 Series solenoid-controlled cylindrical lockset designed for commercial, industrial, and institutional access control. This Grade 1 rated electrified lock replaces mechanical cylindrical locksets in existing door frames without structural modification, delivering retrofit compatibility across mixed-credential environments. Field-selectable dual voltage (12/24 VDC) operation eliminates separate power supplies in hybrid installations. Native OSDP and TCP/IP protocol support integrates directly with enterprise access control platforms, reducing middleware complexity and accelerating deployment timelines.
Key Features
- Multi-Credential Support: Accepts DESFire, MIFARE, NFC/13.56MHz, and 125 kHz Prox card formats. Single lock serves mixed-credential environments without reader replacement or adapter overhead.
- OSDP & TCP/IP Protocols: Native protocol support connects to Genetec, Milestone, Salto, and other enterprise platforms. No serial gateway or proprietary translation layer required.
- Dual Voltage (12/24 VDC): Field-selectable voltage eliminates power-supply fragmentation. Integrated regulator included; no external power conditioning needed.
- Up to 63 Doors / 250,000 Users: Single credentials database across 63 networked locks. Supports high-density office parks, multi-tenant buildings, and healthcare systems without credential duplication overhead.
- Grade 1 Cylindrical Design: Heavy-duty solenoid-controlled mechanism with vandal-resistant clutch. Request-to-exit (REX) output built-in; eliminates need for separate electric strikes or magnetic locks on retrofit projects.
- Retrofit Compatible: Replaces most brands of mechanical cylindrical locksets. Available in Eclipse Rose (ER) and Galaxy Rose (GR) configurations with standard (E, G) and I-Core Prep (E5, G5) options to fit existing door frame patterns.
- Failsafe & Failsecure Options: Locked Outside Only Failsafe 50 (unlocks on power loss) or Failsecure 52 (remains locked). Maintains fire-door latching integrity per code requirements for emergency egress scenarios.
- Finish Selection: Seven finishes available: 626 Dull Chrome, 625 Bright Chrome, 606 Dull Brass, 605 Bright Brass, 612 Dull Bronze, 611 Bright Bronze, 613 Dark Oil Rubbed Bronze. Match existing hardware or specify across multi-building campuses for aesthetic consistency.
The Z7250E5QIC7PKA addresses a common retrofit pain point: replacing mechanical locks in existing frame prep without door frame modification. Grade 1 solenoid construction delivers the holding force of full electric strikes, but in a form factor that fits into standard cylindrical lock bores. OSDP and TCP/IP native support eliminates the protocol converter tax that haunts older card readers. In high-density installations—office buildings, multi-tenant facilities, healthcare campuses—managing 250,000 profiles across 63 doors on a single credential database dramatically simplifies user lifecycle operations. Card issuance, revocation, and batch updates happen once; no per-lock syncing.
Dual voltage selectable operation is underestimated. On renovation projects, power may already exist at 12V (legacy systems) or 24V (newer infrastructure). Field voltage selection lets you avoid separate UPS configurations or power distribution redesigns. The integrated request-to-exit output also matters operationally. On many retrofit jobs, adding a separate electric strike or magnetic lock means additional wiring, relays, and contact monitoring—all adding cost and service points. The solenoid clutch here delivers the same function in one device.
Fire-door compliance is built-in. The failsecure option (52) holds the lock latched even when power is removed or the access control command is received, preserving fire-rating integrity. This is critical in healthcare, hospitality, and institutional settings where fire-door failures create life-safety liability. Latch-status monitoring is standard; you get real-time door position feedback to your access control panel without additional hardware.
Credential flexibility matters in transition environments. If your organization is upgrading from 125 kHz Prox to DESFire or NFC, this lock accepts all four formats simultaneously. No flag day. No reader replacement. Employees use their old cards until they're issued new credentials; the lock validates both. This is particularly valuable in multi-tenant or managed-facility scenarios where tenant card populations don't migrate on a fixed schedule.
The Z7250E5QIC7PKA is a straightforward retrofit solution for organizations replacing mechanical cylinder locks in existing door frames. OSDP and TCP/IP eliminate integration complexity, multi-credential support hedges against credential-standard churn, and field voltage selection reduces power-infrastructure scope on mixed-voltage campuses. Lifetime warranty on the lock mechanism reflects SDC's confidence in the electromechanical design. For access control managers specifying replacement cylinders at scale, the 250,000-user profile capacity and 63-door coordination limit are real operational constraints—plan your logical groupings (buildings, floors, tenants) accordingly. See the SDC catalog for the full range of electrified locksets and compatible readers.
Jerry TildsenPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
We've installed the Electra 7200 series across office parks, hospitals, and multi-tenant industrial buildings, and the Z7250E5QIC7PKA consistently solves one specific problem: replacing mechanical locks in existing door frames without door or frame modification. That retrofit compatibility is why it appears in so many RFPs. The dual voltage field selection has saved us hours of power-supply troubleshooting on campuses with mixed 12V legacy systems and 24V newer infrastructure. Rather than mandate a single voltage across buildings, you just flip a switch inside the lockset. OSDP and TCP/IP are table stakes in 2024, but worth emphasizing—you're not dealing with serial gateways or proprietary protocol translators. The lock speaks directly to Genetec, Milestone, Salto, and other major platforms. Multi-credential simultaneous acceptance (DESFire, MIFARE, NFC, Prox) is especially valuable in healthcare and institutional settings where credential standards shift gradually. No flag day; no fleet replacement.
Technical Highlights:
- Solenoid-Controlled Clutch vs. Magnetic Strike: Most retrofit jobs pair a solenoid lock with an external magnetic strike or electric lock on the frame. This device integrates the solenoid control into the cylinder itself, eliminating the need for frame-mounted hardware. On 20+ door retrofits, that means no additional wiring runs, no relay consolidation, no extra contact monitoring points. The tradeoff: solenoid locks draw continuous current during energization (plan your power budget accordingly), whereas a passive mechanical lock draws nothing at rest.
- OSDP Native Support: OSDP (Open Supervised Device Protocol) is increasingly mandated in government and healthcare RFPs. This lock implements OSDP natively, not as a bolted-on serial gateway. That means encrypted credential transmission, tamper detection, and firmware updates over the network—all without a separate protocol converter sitting in an electrical closet.
- Field-Selectable 12/24V: Eliminates a separate power supply decision at procurement time. On retrofit jobs, power often exists in one voltage or the other; field selection lets integrators standardize on one part number and configure at installation, not at specification.
- 250,000 Profiles / 63 Doors: These aren't arbitrary limits—they reflect the credential database capacity and network coordination scope. For a 10-door office suite, you'll never hit either ceiling. For a 50-building campus with credential sharing, plan your logical groupings (floors, buildings, tenants) around the 63-door boundary to avoid unnecessary multi-lock synchronization overhead.
- Lifetime Warranty on Mechanism: SDC warrants the electromechanical lock mechanism for the life of the device. Solenoids, contacts, and latches are expected to survive normal operation indefinitely. This reflects honest confidence in the design and matters operationally—you're not budgeting lock replacement as a recurring cost.
Deployment Considerations:
- Solenoid Current Draw: Electrified cylindrical locks draw continuous current while the solenoid is energized (typically 0.5–1A at 24V). On 24/7 access scenarios or high-traffic doors, that's a real power budget. Spec your UPS and power distribution to handle the sum of all energized locks, not individual locks in isolation. A 16-door vestibule can pull 8–16A continuously.
- Retrofit Frame Prep Compatibility: The lock fits standard cylindrical lock bores, but trim style (ER vs. GR) and prep configuration (E vs. E5) must match your door frame's existing cutout. Measure existing hardware before spec'ing. I-Core Prep (E5, G5) adds cost but is worth it if you anticipate future credential reader upgrades on the same frame.
- Fire Door & Egress Compliance: Failsecure 52 (locked on power loss) maintains latching but can complicate emergency egress if the access control system fails. Always pair with a mechanical override (key cylinder) and request-to-exit button. Never rely solely on electronic unlocking for fire-door compliance.
- Network Dependency: OSDP and TCP/IP are network protocols. Loss of network connectivity to the access control panel can prevent remote unlock commands. Design failsafe/failsecure behavior to match your risk tolerance. On mission-critical doors (server rooms, medical), include a hardwired request-to-exit button independent of network state.
- Credential Migration Path: The lock accepts four credential formats simultaneously, which is powerful during migration. However, your reader infrastructure (card readers, mobile credential readers) must also support the credentials you intend to issue. Plan your complete credential ecosystem—lock, reader, panel, and issuance system—as one piece, not lock in isolation.
The Z7250E5QIC7PKA is the right choice for integrators retrofitting cylindrical locks into existing door frames across multi-building or multi-tenant campuses. If you're starting from bare concrete (new construction), you might choose a lever-handle electronic lock or full electric strike for more flexibility. But if you're replacing 20 mechanical locks in a historic building or a tenant renovation, this lock's retrofit compatibility and dual-voltage flexibility cut integration time significantly. Check the SDC catalog for complementary readers and credential management options.
