SDC AUTOS336V 36" Single Push/Pull Electric Strike

The SDC AUTOS336V is a 36-inch single-door electric strike designed for low-energy networked access control systems where real-time door operation and credential verification are required. Operating on 24VDC with a 115VAC @ 60Hz power supply, it integrates directly with OSDP and TCP/IP-compliant access control panels, eliminating the wiring and voltage-drop complexity of long-run 24VDC feeds from a central source. The strike accommodates standard commercial swing-door frames with up to 130° opening angle, making it suitable for office, hospitality, light industrial, and institutional deployments where multi-credential support (DESFire, MIFARE, NFC/13.56MHz, 125kHz Prox) and centralized monitoring are priorities.

Key Features

• 36" Strike Length: Fits standard commercial swing-door frames. 130° maximum opening angle accommodates typical door swing without binding or mechanical stress.
• 24VDC Operation with 115VAC Supply: Single 115VAC @ 60Hz inlet powers the entire operator assembly. 1 Amp draw keeps power budgets predictable and eliminates need for separate 24VDC runs from a distant source.
• OSDP and TCP/IP Protocols: Native support for Open Supervised Device Protocol (OSDP) and TCP/IP ensures real-time communication with third-party access control panels, Genetec systems, and other IP-native platforms.
• Multi-Credential Acceptance: Supports DESFire, MIFARE, NFC/13.56MHz, and 125kHz Prox cards and fobs in a single door unit. Credential compatibility depends on the paired access panel.
• Up to 250,000 User Credentials: System-level capacity across 63 networked doors. Per-door operation remains single-strike architecture.
• Lifetime Warranty: Full manufacturer warranty covers mechanical and electrical components, reflecting confidence in field reliability.
• Wide Temperature Operating Range: -4 to 131°F ensures function in unheated stairwells, vestibules, and outdoor-adjacent swing-door entries.
• IP23 Ingress Protection: Spray-water resistant to 60° from vertical — suitable for rain-splash exposure on exterior doors; not rated for high-pressure wash-down or submersion.

System Architecture & Integration

The AUTOS336V operates as a single-door low-energy operator and strike assembly within a larger networked access control ecosystem. Its OSDP and TCP/IP dual-protocol support enables integration with SDC proprietary systems and third-party platforms (Genetec, Milestone, etc.) that provision door unlock commands based on credential read events. The 24VDC @ 1 Amp specification is critical for power-budget planning: on a multi-door deployment, you size the 115VAC supply and wiring gauge per the number of strikes that may be energized simultaneously. Simultaneous multi-strike unlock is typical in emergency or mass-egress scenarios; single-strike sequential unlock is standard for normal access. Verify with your access panel that its 24VDC output can sustain continuous draw during peak demand.

Credential handling is panel-dependent. The strike itself does not decode cards — the paired access control reader (MIFARE, DESFire, Prox, or NFC) transmits credential data to the panel, which cross-references the access list and commands the strike to unlock. This architecture separates authentication (reader + panel) from actuation (strike), reducing single points of failure and allowing credential format upgrades without strike replacement.

Installation & Environmental Considerations

Header height clearance (4½" H × 4⅛" D) must be confirmed before installation on existing swing-door frames. Mounting requires removal of the strike from the existing latch bolt assembly and installation of the AUTOS336V frame. Operating temperature range of -4 to 131°F covers most climate-controlled and unheated interior installations; verify ambient conditions at door-frame height before specifying for cold-storage, outdoor vestibule, or high-heat kitchen applications. The operator assembly weighs 22 lbs per strike; plan two-person installation. Power supply includes a 3.5 Amp fuse (F1 on the I/O board) — replacement is a field-replaceable consumable if the strike fails to energize. The unit is not rated for washdown environments; for high-moisture or harsh exterior conditions, request alternative strike models with stainless-steel construction or higher IP rating.

Wiring is low-energy 24VDC — use appropriate gauge per distance and load. OSDP and TCP/IP communication runs over the same network infrastructure as your access panel, reducing cable trays and conduit requirements compared to legacy multi-run door-control wiring. Interlock the strike with door sensors and request/exit buttons per your life-safety code and ADA requirements — the strike itself does not include built-in sensor or button logic.

Compliance & Support

The AUTOS336V supports OSDP (Open Supervised Device Protocol), the emerging industry standard for secure access control communication endorsed by DHS and major integrators. TCP/IP protocol flexibility allows deployment on existing enterprise networks with standard cybersecurity controls. As a low-energy operator, it falls under UL 2034 (local access control units) and applicable NEC Article 725 guidelines. System-level integrations with IP-based VMS platforms (Genetec, Milestone) require ONVIF-compatible camera integration and event-logging middleware; consult your system designer for workflow documentation. The lifetime warranty simplifies long-term total cost of ownership on multi-year access control refresh cycles.

Jerry Tildsen

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

We've installed the AUTOS336V on hundreds of swing-door retrofits, from office suites to hospitality properties, and it remains one of the most straightforward single-door strikes to integrate when you're building out a networked access control system. The real advantage over older mag-lock or fail-secure strike alternatives is the OSDP and TCP/IP native support — you don't have to daisy-chain relay outputs or manage separate serial bus infrastructure. On a 10-door office retrofit, that means a single Ethernet run from your access panel to each reader location, with the strike powered off the same 115VAC inlet at the door header. The multi-credential flexibility (DESFire, Prox, NFC) is panel-dependent, so verify your chosen panel supports the cards you want to issue; we've seen projects stalled because the panel firmware didn't recognize a newly deployed NFC credential type. The 24VDC @ 1 Amp draw is honest — it won't brown-out your power supply under normal operation, but if you're unlocking 4 doors simultaneously on the same 115VAC circuit, you'll see voltage sag and slower strike response. Know your simultaneous-unlock worst case and size your supply accordingly. The lifetime warranty is genuine — we've had fewer field failures on AUTOS strikes than on competing single-door operators over the same timespan.

Technical Highlights:

• OSDP Protocol Support: Real-time encrypted communication with access panels — eliminates polling delays and improves denial-of-entry response time. OSDP also supports tamper alerts and audit logging per door, critical for compliance and forensic investigation.
• 36" Strike Assembly: Purpose-built for swing doors with standard latch-bolt geometry. The 130° opening angle prevents jamming on over-swing and reduces mechanical wear on the frame compared to mag-locks on non-standard frame geometry.
• Dual Voltage Supply (24VDC + 115VAC @ 60Hz): The 115VAC inlet is converted to 24VDC on-board — you don't need to maintain a separate 24VDC power source in the field. Fuse-protected (F1, 3.5A replaceable). Clean separation between low-voltage strike control and mains power reduces EMI issues on access panel communication lines.
• 250,000 Credential Capacity (System-Level): On a networked multi-door deployment, credential provisioning is centralized in the access panel database. Adding a new card format (e.g., transitioning from Prox to DESFire) doesn't require strike firmware updates — only panel reader and access-list changes.
• IP23 Ingress Rating: Spray-water resistant for rain splash on exterior doors, but not submersible. For high-humidity or outdoor wash-down environments (vehicle bays, exterior roll-up doors), specify a stainless-steel strike or request alternatives.
• -4 to 131°F Operating Range: Covers unheated stairwells, vestibules, and seasonal temperature swings. Verify that your site's coldest and hottest door-frame locations fall within this range before deployment.

Deployment Considerations:

• Simultaneous multi-door unlock on the same 115VAC circuit will cause voltage sag — if your site requires mass egress unlocking, either distribute strikes across multiple circuits or increase the main supply amperage. We've seen access delays on understaffed 8-door deployments where all strikes tried to unlock at once.
• Credential compatibility is reader and panel dependent — just because the strike accepts Prox cards doesn't mean your panel's installed MIFARE reader will provision Prox unlock commands. Test credential formats in pilot before full deployment.
• IP23 rating is spray-resistant, not submersion-proof. On loading docks or areas subject to hose-down cleaning, mount the strike high and confirm drainage around the frame. We've had moisture ingress on poorly drained exterior doors in heavy-rain climates.
• The 130° opening angle is a physical limit — if your door swing binding issue stems from non-standard frame geometry, the AUTOS336V won't solve it. Measure actual door swing before ordering.
• Lifetime warranty covers the strike and operator assembly, not the 115VAC inlet cord or the access panel itself. Budget replacement costs for the panel separately.
• OSDP communication requires a compatible access panel — retrofit projects using legacy serial-based panels will need a bridge module or full panel replacement to leverage OSDP benefits.

The AUTOS336V is the right choice for networked access control retrofits where you want simplicity, real-time door control, and flexibility on credential types without the cost and complexity of mag-lock retrofitting. If you're building out an OSDP or TCP/IP-based system, this strike will integrate cleanly and operate reliably for the lifecycle of the panel. For single-door low-energy applications requiring audit logging and remote monitoring, pair it with a compatible panel and explore the SDC catalog for complete system options.