Cut the Core Drilling: SDC WPT Wireless Power Transfer Device Makes Retrofits Easy

Messing with door cores is one of the biggest headaches for security dealers retrofitting electrified hardware—especially when dealing with wood or fire-rated doors. Fortunately, the SDC WPT Wireless Power Transfer Device solves that problem by delivering power and data across the door gap without any moving parts, wires, or core drilling.

Ideal for both retrofit and new construction, this RF-powered solution simplifies installations, minimizes vandal-prone wiring, and keeps projects on schedule. Whether you’re updating an older access control system or installing electric locks on a wood or steel door, the SDC WPT gives you the power—literally—to get the job done cleanly and compliantly.

Key Product Features

• Wireless RF power transfer—no door core drilling required
• Compatible with steel and wood doors
• Transfers both energy and data (REX, DPS, latch status)
• Visual LED status indicator
• Field-selectable dual voltage output (12VDC or 24VDC)
• Up to 1/4” (7mm) door gap tolerance
• Flexible mounting on latch, hinge, or top frame
• No moving parts or exposed wires—zero wear points
• Adjustable unlock trigger (1–90 seconds)
• Includes fixed 4-second unlock trigger for standard REX

Use Cases & Dealer Benefits

The WPT is a retrofit-friendly, code-compliant solution designed for:

• Failsecure Electrified Locks and Latches: Power mortise, cylindrical, or rim locks without wiring hassles.
• High-Traffic Doors: Reduce wear and tear from wire loops and moving parts.
• Historic and Finished Doors: Maintain door aesthetics without compromising functionality.
• Healthcare and Schools: Perfect for touchless entry installations using wave-to-open sensors.
• Compliance Upgrades: Ideal for projects needing to meet UL fire and burglary ratings.

Why Dealers Love It:

• No Core Drilling = Faster Installs: Save labor and avoid damaging fire-rated or wood doors.
• Reduced Callbacks: No wires to break or degrade over time.
• More Tolerant Alignment: Easier to install than inductive wireless devices.
• Upsell Opportunity: Bundle with electrified locksets, exit devices, and wave-to-open switches.
• Profitable Retrofits: Unlock more margin on existing door openings where wiring is difficult.

Technical Summary

• Power Input (Frame Side): 600 mA @ 24 VDC
• Power Output (Door Side):
  • 600 mA @ 12 VDC
  • 300 mA @ 24 VDC
• Door Gap Tolerance: Up to 1/4″ (7mm)
• Alignment Tolerance: Horizontal & vertical < 5/64” (2mm)
• Dry Inputs:
  • (1) 4-second fixed unlock trigger
  • (1) 1–90 second adjustable unlock timer
• Dry Outputs (Frame Side):
  • (2) SPDT, 1A @ 30 VDC resistive
  • (2) SPST-NO, 100 mA @ 60 VDC resistive
• Environmental Rating: -4°F to 140°F
• Weight: 1 lb
• Certifications:
  • UL 10C Positive Pressure Fire Tests
  • UL 1034 Burglary-Resistant Locking Mechanisms

Note: For use with failsecure (power-to-unlock) locks only. Not compatible with failsafe or continuously dogged locks.

How the SDC WPT Works

Unlike inductive systems that require precise coil alignment, the WPT uses RF energy, which:

• Transmits power as radio waves across the door gap.
• Converts the RF signal into usable DC voltage via an internal receiver.
• Transfers data (REX, DPS, latch status) along with power.
• Is less sensitive to vertical and horizontal misalignment than coil-based systems.

This makes the WPT more installer-friendly and reliable in real-world deployments—especially in field conditions where perfect alignment isn’t always possible.

Accessory Highlight: WPT Drill Jig

For installers working with solid or particle-filled wood doors, SDC offers a WPT Drill Jig Assembly (part #SDC-WPT), available from JustDoorToolz. This makes prep quick, clean, and precise—ensuring a secure, code-compliant fit for every install.

Partner with SESP for Your SDC Installations
Southeast Security Products represents SDC and other best-in-class manufacturers across the Southeast U.S., offering hands-on support, product expertise, and dealer-focused programs to help you grow your business. Whether you’re building your first smart home package, upgrading to next-gen connectivity, or integrating high-performance technology into a larger security system, we can help you select the right solutions to power your installations. Contact us today for pricing, training, or to request a demo of the WPT Wireless Power Transfer Device.

Visit sesproducts.com or reach out to learn more about how we can support your next project.