Camden CX-ED1079DL-BK Electric Strike for Cylindrical Locksets
The Camden CX-ED1079DL-BK is a Grade 1 ANSI A156.31 electric strike engineered for standard-depth door frames on commercial access control installations. Rated for 1,500 lbs static hold force and 70 ft-lbs dynamic strength, it delivers reliable fail-safe or fail-secure operation across office buildings, data centers, healthcare facilities, and access-controlled perimeters without requiring field modifications. The strike accommodates cylindrical locksets in hollow metal, aluminum, and wood frames with a non-handed design that simplifies inventory management across multi-building campuses.
Key Features
- Grade 1 ANSI A156.31 Rating: 1,500 lbs static hold force and 70 ft-lbs dynamic strength ensure robust holding power in high-traffic commercial environments and security-critical access points.
- Dual Voltage, Field-Selectable Mode: 12/24V AC/DC supply with selectable fail-safe or fail-secure operation eliminates stocking multiple SKUs and simplifies panel wiring during system design changes.
- Optional Latch-Monitor Feedback: SPDT relay (100mA @ 24V DC) provides door-open/closed status to access control panels and event logging systems without auxiliary switches.
- Standard-Depth Frame Fit: Engineered for 5/8" to 3/4" latch projection; horizontal body adjustment tolerates typical frame variations without reaming or re-chiseling.
- Non-Handed Design: Works on left or right swing doors; reduces part proliferation and allows single-unit cross-dock inventory for multi-site deployments.
- Low Current Draw: 260mA @ 12V AC or 150mA @ 24V DC; allows integration with standard access control power supplies and minimizes voltage drop on longer cable runs.
- Verified Cycle Life: 1,000,000 factory-tested cycles and 500,000 UL-verified cycles; typical field service life exceeds 5 years under normal duty cycle (20-50 operations per day).
- Multiple Faceplate Options: Three stainless steel finishes included (CX-ESP1B, CX-ESP3B, CX-ESP4B); optional black architectural finish (BHMA 622, US19) matches frame trim preferences without additional orders.
The CX-ED1079DL-BK integrates into any 12/24V access control circuit. Silent DC operation suits noise-sensitive environments (hospitals, libraries, secure facilities), while AC mode works with legacy magnetic-lock control systems. The SPDT latch monitor output connects directly to access control panel inputs, enabling door-open alarms, audit logging, and tailgate detection without installing a separate magnetic contact switch. On a 50-door office retrofit, eliminating redundant door sensors saves material cost and installation labor.
Standard-depth frame compatibility covers approximately 85% of North American commercial construction (hollow metal and aluminum frames built to 1990s+ standards). The strike body accepts typical cylindrical locksets from major manufacturers (Schlage, Corbin, Arrow, Stanley) without modification. Horizontal adjustment also accommodates minor frame settlement or wood-frame door sag without requiring strike replacement. Technicians unfamiliar with electric strike installation appreciate the simple two-wire power connection and easy-fit connectors that eliminate solder-joint failures and field wiring errors.
AC operation produces an audible solenoid buzz during energization — acceptable in data center or mechanical closet scenarios, but undesirable in executive offices or interview rooms. DC operation is silent and suitable for premises where noise complaints are a concern. Power supply capacity is critical: verify that the access control panel or dedicated 12/24V supply can source the peak current draw (260mA @ 12V, 150mA @ 24V) plus headroom for multiple strikes. Undersized supplies cause voltage sag, delayed strike de-energization, and false latch-monitor readings.
The five-year manufacturer warranty covers defects in materials and workmanship. Compliance with ANSI A156.31 Grade 1 and UL 1034 (electric strikes for use with access control devices) confirms suitability for jurisdictions requiring fire-rated door installations and ADA-compliant access control. The optional latch monitor (SPDT) is not UL-listed for alarm circuit use; for alarm-grade supervision, consult a door position switch (IFS or cabinet-mounted) per local fire code. Explore the Camden product catalog for fail-safe/fail-secure selector switches, magnetic locks, and modular power supplies that complement electric strike deployments.
Jerry TildsenPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
We've installed the CX-ED1079DL-BK on over 200 commercial doors across office parks, healthcare facilities, and data centers, and it remains one of the most reliable electric strikes in the mid-range market. The real differentiator is the field-selectable 12/24V voltage and fail-safe/fail-secure mode — it eliminates the inventory headache of stocking two separate strikes for mixed system deployments. On a recent 75-door campus retrofit, we cut parts inventory by 40% and reduced wiring errors during commissioning simply because we could configure every strike identically at installation. The optional latch monitor (SPDT) is genuinely useful for integrators working with legacy access control panels that lack door-position inputs; it saves the cost of a separate magnetic contact switch, though it's not suitable for fire-alarm supervision. The Grade 1 rating and UL cycle testing give us confidence spec'ing this into healthcare and secure-facility projects where door reliability directly impacts operational uptime. Compared to the heavier-duty electromagnetic lock (mag-lock), the electric strike is quieter, less power-hungry, and retrofit-friendly into existing cylindrical locksets — a real advantage in renovation work where replacing the entire lock hardware isn't practical.
Technical Highlights:
- 1,500 lbs Hold Force + 70 ft-lbs Dynamic Strength: Meets ANSI A156.31 Grade 1 for commercial-duty access control. In practice, the static hold is overkill for office and healthcare settings; the dynamic rating ensures the strike arrests forceful kicks and shoulder checks. We've never seen failure on a standard commercial door under normal use, even with aggressive tailgating attempts.
- Dual Voltage and Mode Selectable (12/24V AC/DC, Fail-Safe/Fail-Secure): Field jumpers eliminate the need for separate product SKUs. On multi-tenant or campus installations, this flexibility reduces procurement cycles. Verify power supply capacity before final config — voltage sag from undersized supplies causes delayed de-energization and unreliable latch monitoring.
- Optional SPDT Latch Monitor (100mA @ 24V DC): Direct integration with access control panel inputs. We use it for door-open alarms, audit logging, and tailgate detection. Caveat: it's not UL-listed for fire-alarm supervision; for monitored alarm circuits, specify a separate door position switch.
- 500,000+ UL-Verified Cycles: 5+ year typical service life at 20-50 operations per day. We've pulled failed units at 400k–600k cycles; wear is slow and predictable, not catastrophic. Plan replacement during scheduled maintenance windows, not emergency callouts.
- Low Current Draw (260mA @ 12V, 150mA @ 24V DC): Integrates into standard access control power supplies. On long cable runs (100+ feet), verify voltage drop — each 100 feet of 18 AWG wire causes ~1V sag; the strike will still function, but latch monitoring may require compensation.
Deployment Considerations:
- Standard-Depth Frame Fit (5/8" to 3/4" Latch Projection): Covers ~85% of North American commercial frames built post-1990. On older or non-standard frames, measure latch projection before ordering. We've encountered deep-set latches (1" projection) in pre-1980s hollow-metal frames; those require specialist strikes. Horizontal body adjustment handles minor variations without re-chiseling.
- AC Buzz vs. DC Silence: AC mode produces an audible solenoid hum during energization — fine in mechanical rooms or data centers, unacceptable in executive offices or patient care areas. DC operation is silent. Choose voltage based on environment, not just electrical convenience.
- Power Supply Sizing: The CX-ED1079DL-BK draws peak current at energization. On systems with 8+ strikes, calculate total peak load and verify the power supply rated for simultaneous access (or stagger door access via software). Undersized supplies cause voltage sag, delayed de-energization, and false latch-monitor trips.
- Latch Monitor Not for Fire Alarm: The SPDT output is Class 2 and not UL-listed for fire-rated door monitoring. If the project requires monitored latch feedback per fire code, install a separate UL-listed door position switch and integrate into the fire-alarm circuit independently.
- Non-Handed Simplifies Stocking: One SKU works left or right swing. On a 40-door project, you carry one part number and assign door swing at installation. Eliminates last-minute expedites when door swing is misidentified during design.
The CX-ED1079DL-BK is the right choice for integrators retrofitting cylindrical locksets into existing frames where door hardware replacement is not practical, and for campus or multi-building deployments where inventory simplification reduces cost and installation errors. System architects favor it for healthcare and secure-facility projects where quiet operation and reliable latch monitoring matter. Evaluate the Camden catalog for complementary fail-safe/fail-secure relays, power supplies, and door position switches that integrate seamlessly with this strike family.
