Securitron PSP Plug-In DC Power Supply for Access Control — 12VDC or 24VDC

The Securitron PSP is a compact, plug-in DC power supply engineered specifically for access control applications requiring a clean, reliable low-voltage source at either 12VDC or 24VDC. Designed for installations where a small, dedicated power source is needed — such as powering a single electric strike, card reader, request-to-exit device, or supplemental access control component — the PSP delivers stable DC output in a convenient plug-in form factor that eliminates the need for a dedicated electrical panel circuit or large enclosure-mounted supply.

Securitron, an ASSA ABLOY brand, is a well-established name in the access control power and locking hardware market. The PSP is purpose-built for low-current access control circuits, making it a practical choice for retrofit projects, small installations, or supplemental power needs where a full-size power supply would be over-specified.

Key Benefits

• Dual-voltage flexibility: Selectable or configured for 12VDC or 24VDC output — compatible with a wide range of access control devices and electric locking hardware
• Plug-in convenience: Installs quickly without dedicated conduit runs to a panel — ideal for retrofit and small-scale deployments
• Purpose-built for access control: Designed to power low-voltage access control components including readers, REX devices, electric strikes, and similar loads
• Compact footprint: Minimal space requirement; mounts or sits near the device it powers without a large enclosure
• Clean DC output: Provides stable DC power appropriate for sensitive access control electronics

Typical Applications

• Supplemental power for a single electric strike or electromagnetic lock in a small installation
• Powering card readers, keypads, or request-to-exit (REX) sensors independently
• Retrofit access control upgrades where running back to a central power supply is impractical
• Small office, retail, or light commercial access control deployments
• Bench testing or temporary powering of access control hardware during commissioning

Installation and Sizing Notes

When integrating any plug-in power supply into an access control system, follow standard low-voltage wiring best practices: maintain a minimum 12-inch physical separation from 120VAC high-voltage wiring to prevent induced voltage and phantom signals on the low-voltage circuit. For inductive loads such as electric strikes or electromagnetic locks, always install a suppression diode at the device terminals — not at the power supply — to protect the circuit from back-EMF voltage spikes when the lock releases. Size your power supply with a 25–50% current margin above the sum of connected device draws to allow for inrush current and future expansion.

For larger installations requiring multiple door circuits, battery backup, or fire alarm integration, consider a full-featured access control power supply such as those in the Securitron AQD or AQL series, which provide enclosure-mounted distribution, integrated battery charging, and fire relay inputs.

Technical Details

Note: DoorwaysPlus can quote comparable plug-in and enclosure-mounted power supply alternatives from preferred lines including SDC and other access control power supply manufacturers — contact our team for a side-by-side comparison.