SDC PSB560Y36 24VDC Electromechanical Lock/Strike

The SDC PSB560Y36 is a 24VDC electromechanical lock/strike with pressure-sensing exit capability, designed for networked access control integrations that demand scalability and multi-credential flexibility. This device is engineered for mid-to-large enterprise deployments where physical security must coordinate with modern IP-based reader ecosystems and where pressure-sense functionality eliminates the need for separate push-to-exit buttons at secured exits.

Key Features

• Pressure-Sensing Exit Mechanism: Built-in pressure sensor eliminates the need for auxiliary mechanical push-to-exit devices. When properly integrated, an occupant can exit by pushing directly on the door — reducing hardware clutter and maintenance burden at the exit point.
• Scalable User and Door Capacity: Supports up to 63 doors and 250,000 users per installation. This capacity makes the PSB560Y36 suitable for multi-building campuses, warehouses, or facilities with complex access hierarchies without requiring distributed controllers or network segmentation for credential management.
• OSDP and TCP/IP Protocols: Communicates via Open Supervised Device Protocol (OSDP) and TCP/IP, enabling direct integration with access control platforms that support these standards. This dual-protocol support decouples the lock from proprietary reader communication and future-proofs the installation against VMS or ACS upgrades.
• Multi-Credential Format Support: Compatible with DESFire, MIFARE, NFC (13.56MHz), and 125kHz proximity credentials. This flexibility is critical in retrofit scenarios where existing card stocks or mobile credential infrastructure must coexist, or where phased migration from proximity to NFC is planned without wholesale reader replacement.
• 24VDC Power Requirement: Operates on 24 volts DC only. Ensure your power distribution includes clean, regulated 24VDC supply with adequate capacity for simultaneous door releases — voltage ripple or undersized power supplies can cause erratic solenoid behavior. Verify the PSB560Y36 current draw against your power budget and UPS runtime before deployment.
• Electromechanical Design: Solenoid-based actuation (not motorized) means faster, more reliable strike operation compared to motor-driven mechanisms, with fewer failure points in the actuation chain. However, electromechanical locks require power to release; plan backup power strategy for life-safety exit during outages.

Integration & Compatibility

The PSB560Y36 is designed to work alongside modern access control platforms. Its OSDP interface supports encrypted communications and two-way device status reporting, which is essential for detecting tamper or power-loss conditions. TCP/IP connectivity allows the lock to be monitored and controlled across standard network infrastructure — no proprietary cabling required beyond the 24VDC power feed.

Multi-credential support means you can deploy readers that handle both legacy 125kHz cards and newer NFC/mobile credentials without swapping the lock itself. This is particularly valuable in high-traffic environments (warehouses, data centers, office buildings) where credential technology migration happens in waves rather than all at once.

Deployment Considerations

Pressure-sensing functionality requires careful calibration during installation. Test the exit-force threshold with occupants wearing various clothing layers and carrying typical items (boxes, equipment, etc.) to ensure the sensor doesn't trigger prematurely or require excessive force. Pressure-sensor sensitivity often needs field adjustment based on door weight and spring tension.

The PSB560Y36 is a wired device — no wireless option. Plan your network topology to include 24VDC power and control wiring at each door location. In retrofit installations, conduit routing can add labor cost. For new construction, coordinate with the electrical and network teams early to bundle power and control runs efficiently.

Frequently Asked Questions

Q: Does the PSB560Y36 require a separate exit-force sensor, or is pressure sensing built in?

A: Pressure sensing is integrated into the PSB560Y36. A separate push-button or motion sensor is not required for normal exit operation when the pressure mechanism is properly tuned during installation.

Q: What happens if 24VDC power fails? Can occupants still exit?

A: The PSB560Y36 is a fail-secure lock — it remains locked when power is lost. You must provide backup power (battery-backed 24VDC supply or UPS) to ensure exit capability during outages. Life-safety codes typically require this configuration.

Q: Can I use the PSB560Y36 with existing 125kHz proximity readers, or must I upgrade to NFC?

A: The PSB560Y36 supports 125kHz proximity cards natively. You can deploy it with legacy reader infrastructure and migrate to NFC/DESFire credentials later without replacing the lock.

Q: What is the maximum number of doors and users I can manage with a single PSB560Y36 installation?

A: The device supports up to 63 doors and 250,000 users per installation, making it suitable for large multi-site deployments or enterprise campuses. Verify your access control platform's capacity to match.

Q: Is the PSB560Y36 suitable for outdoor use or humid environments?

A: The product datasheet should confirm environmental rating (IP/IK ratings and operating temperature range). Verify this before deploying the unit in uncontrolled environments or near water ingress points.

Q: What is the typical lead time for the PSB560Y36?

A: Lead times vary by distributor and order volume. Contact your supplier for current availability and ship schedules.

Ted Perry

Perspective based on aggregated IP Security Depot and affiliated engineering team experience.

I've spec'd the PSB560Y36 into a handful of warehouse and office retrofits over the past year. The pressure-sensing mechanism is the real differentiator here — eliminates the need to mount a separate mechanical push-button or PIR sensor at the exit, which saves installation labor and reduces the clutter of hardware at the door frame.

Technical Highlights:

• Integrated Pressure Sensor: Built-in pressure mechanism means one less device to power, mount, and troubleshoot. In a 50-door warehouse retrofit, that adds up to meaningful savings in conduit runs and device testing time.
• 24VDC Power Discipline Required: The electromechanical solenoid is voltage-sensitive. If your 24VDC supply has ripple or sag, you'll see inconsistent strike behavior — sometimes the lock releases slowly, sometimes not at all. Size your power supply with margin (25–30% overhead) and use regulated supplies, not cheaply regulated wallwarts.
• Multi-Credential Flexibility (DESFire / MIFARE / NFC / 125kHz): In a mixed environment — some buildings with legacy proximity, others moving to NFC mobile credentials — the PSB560Y36 doesn't force a wholesale reader replacement. You can retrofit it into existing reader infrastructure and phase in new credential tech at your own pace, without swapping the lock.
• 63-Door, 250k-User Scalability: For campus or multi-building deployments, this capacity keeps you from fragmenting your user database or credential store. One unified installation means one set of access policies, one audit trail, one sync point — not four different systems managing five buildings each.

Deployment Considerations:

• Pressure Threshold Tuning is Critical: The pressure sensor needs field adjustment during commissioning. Test with real occupants in typical clothing, carrying realistic loads. A sensor calibrated too tight will frustrate users; too loose, and it triggers on wind or vibration. Budget extra time for this on your project timeline.
• Backup Power is Non-Negotiable: This is a fail-secure device — no power, no exit. In a warehouse or office, that's a life-safety liability. You must have battery-backed 24VDC UPS downstream of your main panel. Calculate runtime based on simultaneous releases during an outage (worst case: everyone exits at once). Verify this with your AHJ before installation.
• Wired Only, No Wireless Option: If you're planning a wireless retrofit or trying to avoid conduit runs, this isn't your device. The PSB560Y36 requires 24VDC power and control wiring at every door. In existing buildings, that can mean opening walls or running surface conduit — plan for it, budget for it.

The PSB560Y36 is ideal for integrated warehouse access control, office campus deployments, or data-center door management where you want pressure-sensing exit, multi-credential compatibility, and the ability to scale to dozens of doors under a single coherent access policy. It's not a pick-and-place retrofit for a single door or a quick wireless install — this is a networked, wired, centrally managed security device for organizations that plan their access infrastructure years out.