SDC 1581SNDVDB 15' DPS NFPA 628 Door Strike
SDC 1581SNDVDB 15' DPS NFPA 628 Door Strike
SDC 1581SNDVDB 15' DPS NFPA 628 Door Strike
SDC 1581SNDVDB - Image 2
SDC 1581SNDVDB - Image 3
SDC 1581SNDVDB - Image 4
SDC 1581SNDVDB - Image 5
Product images are provided for reference and may not represent the exact model, configuration, or included components.

No Bots, Just Experts

Questions about this product? Free pre-sales support from a senior specialist — product questions, compatibility checks, BOM quotes, price confirmation — typically answered within one business day. Need camera placement or system design work? Engineering time is $175 per hour (qty 1 = 1 hour). Hardware buyers get up to one hour ($175) credited back on their order.

Get Free Pre-Sales Support Buy Design Hours ($175/hr)
Description

Discontinued — No Longer Available New

This model has been discontinued by SDC. Shop current SDC products → or see the recommended alternatives below.

Sdc/Security Door Controls 1581SNDVDB Door Strike

Overview

The SDC 1581SNDVDB is a certified DPS (Delayed Egress System) door strike engineered for multi-building access control deployments. NFPA 628 compliant, it supports 63 doors and 250,000 users per system, making it suitable for enterprise and distributed facilities. Operates on 24VDC.

Connectivity & Credentials

Communicates via OSDP and TCP/IP protocols. Supports DESFire, MIFARE, NFC/13.56MHz, and 125kHz Prox credentials, enabling flexible reader integration across legacy and modern card ecosystems.

Compatibility

Integrates with access control systems requiring multi-credential, networked strike management. Ideal for security integrators standardizing on open protocol architectures. Typical applications include medical facilities, office complexes, and mixed-use buildings requiring certified emergency egress compliance.

Expert Analysis
Specifications
Product Type: Lock/Strike
Communication: OSDP, TCP/IP
Door Capacity: 63
Voltage: 24VDC
Type: Lock/Strike
Strike Type: DPS (Delayed Egress System)
Input Voltage: 24VDC
Doors Supported: 63
Credential Type: DESFire, MIFARE, NFC/13.56MHz, 125kHz Prox
Max Users: 250000
Reader Type: Multi-credential reader
eol: true
Q&A
Reviews
Product Video

SDC 1581SNDVDB 15' DPS NFPA 628 Door Strike

$829.99
$793.99
Add to Cart

RELATED PRODUCTS

Save $82.01
SDC 110IV Electronic Door Lock 12/24VDC OSDP
Add to Cart The item has been added

SDC 110IV

SDC 110IV Electronic Door Lock 12/24VDC OSDP

Dual-voltage electronic lock with OSDP protocol for mixed 12/24VDC systems

  • Accepts 12VDC or 24VDC input, eliminating voltage regulators in mixed-power deployments.
  • OSDP communication delivers encrypted, supervised transactions with tamper-event reporting.
  • NFC/13.56MHz credential support enables contactless badge and mobile authentication.
Usually Ships in 2-3 Weeks Free shipping over $499
$228.00 $145.99 Save $82.01
Add to Cart
The item has been added Add to quote
$228.00 $145.99 Save $82.01
Save $82.01 Add to cart Add to quote
Save $59.01
SDC 25-4U 4-Door Electric Strike Controller
Add to Cart The item has been added

SDC 25-4U

SDC 25-4U 4-Door Electric Strike Controller

4-door electric strike controller with OSDP and TCP/IP for networked access

  • Controls 4 independent strikes over OSDP and TCP/IP, eliminating relay modules.
  • Stores up to 250,000 credentials—scales for enterprise campuses and multi-tenant sites.
  • Runs on 24VDC with lifetime warranty; rack-mounts into standard access control panels.
Usually Ships in 2-3 Weeks Free shipping over $499
$152.00 $92.99 Save $59.01
Add to Cart
The item has been added Add to quote
$152.00 $92.99 Save $59.01
Save $59.01 Add to cart Add to quote
Save $190.01
SDC 350V Electromagnetic Strike Lock 24VDC
Add to Cart The item has been added

SDC 350V

SDC 350V Electromagnetic Strike Lock 24VDC

24VDC electromagnetic strike with OSDP protocol for multi-reader access

  • 24VDC input works directly with standard access control panels—no power conditioning needed.
  • OSDP communication delivers real-time door status feedback and eliminates polling delays.
  • Supports DESFire, MIFARE, NFC, and 125kHz prox credentials across up to 250,000 users.
Usually Ships in 2-3 Weeks Free shipping over $499
$462.00 $271.99 Save $190.01
Add to Cart
The item has been added Add to quote
$462.00 $271.99 Save $190.01
Save $190.01 Add to cart Add to quote
Save $384.01
SDC/Security Door Controls 636RFA 6 Amp Lock/Strike
Add to Cart The item has been added

SDC 636RFA

SDC/Security Door Controls 636RFA 6 Amp Lock/Strike

6 amp lock strike with OSDP support for multi-credential access control

  • Selectable 12/24 VDC output at 6 A sustains solenoid strikes and mag locks without voltage sag.
  • Interchangeable control boards (ACM, EMC, IPDC, IPDS, CR) adapt relay logic to your door topology.
  • Integrated 13.5/27 VDC battery charger and 16-gauge steel cabinet support standby backup deployments.
Usually Ships in 2-3 Weeks Free shipping over $499
$988.00 $603.99 Save $384.01
Add to Cart
The item has been added Add to quote
$988.00 $603.99 Save $384.01
Save $384.01 Add to cart Add to quote
Save $66.01
SDC Security Door Controls 413NU Integrated Electronic Controller
Add to Cart The item has been added

SDC 413NU

SDC 413NU Electronic Controller

OSDP networked controller for NFC and proximity card access

  • OSDP protocol integrates natively with Genetec, Salto, and Identiv — no proprietary gateways.
  • 3A DPDT relay at 30VDC drives 24VDC mag-locks or solenoid strikes without external drivers.
  • Field-adjustable 1–60 sec dwell timer requires no reprogramming for loading docks or stairwells.
Usually Ships in 2-3 Weeks Free shipping over $499
$170.00 $103.99 Save $66.01
Add to Cart
The item has been added Add to quote
$170.00 $103.99 Save $66.01
Save $66.01 Add to cart Add to quote
Save $0.01
SDC Security Door Controls 423U Integrated Electronic Timer
Add to Cart The item has been added

SDC 423U

SDC Security Door Controls 423U Integrated Electronic Timer

24VDC electronic timer controller with OSDP for proximity and keypad readers

  • Adjustable 1–60 sec dwell time lets you fine-tune lock release windows per door.
  • DPDT relay rated 3A @ 30VDC drives solenoid strikes or mag-locks without added modules.
  • Accepts 24VDC ±10% input and fits a standard single-gang box for straightforward retrofits.
Usually Ships in 2-3 Weeks Free shipping over $499
$170.00 $169.99 Save $0.01
Add to Cart
The item has been added Add to quote
$170.00 $169.99 Save $0.01
Save $0.01 Add to cart Add to quote

Looking for more SDC products? Shop the full SDC catalog →

System Design, Deployment & Technical Support

Support services and planning resources for commercial surveillance, access control, and infrastructure deployments.

Fixed scope • Fixed price

System Design Assistance

  • Get help validating product compatibility
  • Coverage requirements
  • Storage planning and deployment architecture before you buy.
Request Design Help

Deployment & Configuration Support

  • Access fixed-scope support for rollout planning
  • User setup guidance
  • Migration and system standardization across single-site or multi-site deployments
View Support Services

Guides, Tools & Calculators

  • PoE requirements
  • Storage retention
  • Camera selection and deployment methodology
Open Technical Resources
!