SDC 1511S Series Single Integrated Delayed Egress Locks

SDC 1511S Series Single Integrated Delayed Egress Locks

The SDC 1511S Series ExitCheck® Single Integrated Delayed Egress Locks provide a secure, code-compliant solution for controlling unauthorized egress through perimeter exit doors while maintaining immediate emergency release capability. Designed for single-door applications, the 1511S combines a high-performance electromagnetic lock, delayed egress electronics, audible/visual warning indicators, and an integrated three-position key switch into one streamlined assembly.

With selectable 15- or 30-second delayed egress, the SDC 1511S helps security personnel identify and respond to unauthorized exit attempts while providing clear instructions to occupants. Its large digital countdown display, door release indicator, alternating verbal messaging, verbal countdown, and alarm tone help communicate the exit status to people without prior knowledge of the door operation, including individuals who are blind or hearing impaired.

The 1511S supports a variety of access-control and patient-wandering applications and offers field-selectable operating modes to help meet applicable NFPA 101 Special Locking Arrangements and other national and regional fire and life-safety requirements. All SDC delayed egress locks are designed to release immediately during an emergency.

Key Features

• 15- or 30-second delayed egress for perimeter exit doors
• Integrated delayed egress electromagnetic lock
• Large digital countdown display with door release indicator
• Alternating verbal message, verbal countdown, and alarm tone
• Built-in activation trigger with adjustable door movement sensor
• Integrated three-position key switch for reset and manual bypass
• Compatible with access control systems
• Compatible with patient wandering, patient tracking, and infant tracking systems
• Multiple code-compliant operating modes
• Auto-sensing dual-voltage operation
• Voltage and current spike protection
• Field-selectable security or safety message
• Field-selectable activation trigger
• Field-selectable automatic or manual reset
• Field-selectable sustained or timed bypass
• Single- or multi-door zone control and reset
• Remote reset capability
• Fire/emergency release
• Anti-tailgate functionality
• Interlocking quick-mount assembly
• Manual power-up and bypass settings

Field-Selectable Options

The SDC 1511S provides flexible configuration options to accommodate different door, security, and life-safety requirements:

• Voice message and alarm tone, or alarm tone only
• Activation by door movement
• Exit device compatibility with switch kit
• Pressure-sensing bars for non-latching doors
• Automatic or manual relock after power restoration or emergency release
• Door prop alarm after the selected bypass time
• Sustained or timed bypass operation
• Security or safety messaging

Optional Features

• Low-power energy-saver operation
• Door Position Status (DPS)
• Bond Alert Status (BAS)
• Anti-Tamper Status (ATS)
• Alarm reset on REX programming
• Alternative language programming

Ideal Applications

The SDC 1511S ExitCheck delayed egress lock is ideal for commercial and institutional facilities where controlled egress, access control, and life safety are critical, including:

• Hospitals and healthcare facilities
• Patient wandering and infant protection areas
• Commercial buildings
• Schools and educational facilities
• Government buildings
• Perimeter exit doors
• Security-sensitive facilities
• Access-controlled exit doors

Why Choose the SDC 1511S?

The SDC 1511S integrates delayed egress, electromagnetic locking, audible warnings, visual countdown indicators, and reset/bypass controls into a single solution for single-door delayed egress applications. Its clear occupant notification, flexible programming, access-control compatibility, and emergency release functionality make it a strong choice for facilities requiring enhanced security without compromising fire and life-safety requirements.

Product Highlights

Product Series: SDC 1511S
Brand: SDC
Product Family: ExitCheck®
Type: Single Integrated Delayed Egress Lock
Locking Technology: Electromagnetic
Delayed Egress: 15 or 30 seconds
Applications: Single-door perimeter exit applications
Compatibility: Access control and patient tracking systems
Operation: Field-selectable modes and bypass options
Emergency Release: Yes
Monitoring Options: DPS, BAS, ATS available